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INSTALLATION & OPERATIONS MANUAL
SunDial™ 30 kW PV String Inverters
Product Models: 30PV, 30PVF, 30PV+S, 30PVF+S
Control Document Number: MAN-00117, Rev A
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 1 of 31
Disclaimer
This document is provided “as is” and Ideal Power Inc. (IPWR) makes no
representations warranties, expressed or implied, with respect to the information
contained herein. IPWR has made reasonable efforts to ensure the accuracy of
information herein and at the time of publication. However, information is constantly
evolving and IPWR does not purport the information provided is correct, comprehensive
or exhaustive. This document is for informational purposes only. You should not act
upon information without consulting IPWR or its authorized distributors.
© Copyright 2017, Ideal Power Inc. All rights reserved. No parts of this document may
be reproduced in any form without the express written permission of IPWR. Ideal Power
Inc., and the Ideal Power logo are trademarks of Ideal Power Inc. All other trademarks
and service marks belong to their respective owners.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 2 of 31
Table of Contents
SECTION 1.0 INTRODUCTION AND PURPOSE .......................................................................................4 FCC COMPLIANCE ......................................................................................................................................... 5 RMA AND SERVICE CONTACT .......................................................................................................................... 5
SECTION 2.0 IMPORTANT SAFETY INSTRUCTIONS................................................................................6 SAFETY INSTRUCTIONS: ALL INSTALLATIONS ....................................................................................................... 6 SAFETY INSTRUCTIONS: BATTERY INSTALLATIONS ................................................................................................ 7 SAFETY INSTRUCTIONS: ADDITIONAL ................................................................................................................. 8
SAFETY INSTRUCTIONS: HANDLING ……………………………………………………………………………………………..………8
INTEGRATED SAFETY FEATURES ........................................................................................................................ 9
GROUND FAULT DETECTION – GROUND REFERENCED PV COMBINER ................................................................... 10 GROUND FAULT DETECTION – FLOATING PV COMBINER ..................................................................................... 10 DC OVER/UNDER VOLTAGE FAULT DETECTION ................................................................................................ 10 AC CURRENT FAULT DETECTION .................................................................................................................... 10 AC FREQUENCY AND VOLTAGE FAULT DETECTION............................................................................................. 11 REGULATORY INFORMATION.......................................................................................................................... 11
SECTION 3.0 SYSTEM SPECIFICATIONS .............................................................................................. 11
SECTION 4.0 UNPACKING AND MOUNTING THE INVERTER ................................................................ 12 INVERTER MOUNTING .................................................................................................................................. 13 CLEARANCES FOR INVERTER MOUNTING……………………………………………………………………………………………………..13 INVERTER REMOVAL AND PREPARATION FOR SHIPMENT .................................................................................... 16
SECTION 5.0 AC AND DC TERMINALS - WIRING AND INSTALLATION ................................................... 16 INVERTER GROUND ...................................................................................................................................... 17
AC WIRING ................................................................................................................................................ 17
AC EXTERNAL CIRCUIT PROTECTION AND DISCONNECT …………………………………………………………………………….……18
DC WIRING ................................................................................................................................................ 18
DC CONNECTION TERMINAL OVERVIEW .......................................................................................................... 18
DC WIRING OPTIONS ................................................................................................................................... 19
COMBINER OVERVIEW…………………………………………………………………………………………………………………………….19
PV STRING INVERTER………………………………………………………………………………………………………………………….……21
CONTROL AND GRID WIRING …………………………………………………………………………………………………………………….21
BATTERY WIRING ………………………………………………………………………………………………………………………….……….21
DC3 (BATTERY) EXTERNAL CIRCUIT PROTECTION AND DISCONNECT………………………………………………………………...21
GROUND-REFERENCED COMBINER …………………………………………………………………………………………………………...21
FLOATING COMBINER……………………………………………………………………………………………………………………………..22
VERIFICATION OF ELECTRICAL CONNECTIONS .................................................................................................... 23
SECTION 6.0 OPERATING AND SHUTDOWN CONDITIONS .................................................................. 24
SECTION 7.0 MAINTENANCE AND TROUBLESHOOTING...................................................................... 25 ANNUAL PREVENTIVE MAINTENANCE ............................................................................................................. 25 VERIFY PROPER AIRFLOW .............................................................................................................................. 26 POWER TERMINALS TORQUE CHECK ............................................................................................................... 26
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 3 of 31
COOLING SYSTEM INSPECTION ....................................................................................................................... 27 INVERTER TROUBLESHOOTING ....................................................................................................................... 27 CLEARING GFDI FAULTS- GROUND REFERENCED APPLICATIONS .......................................................................... 28 CLEARING GFDI FAULTS - FLOATING APPLICATIONS .......................................................................................... 28 FRONT PANEL DISPLAY ................................................................................................................................. 28 INVERTER FAULT/STATUS CODES.................................................................................................................... 29
SECTION 8.0 FAULT OVERVIEW ......................................................................................................... 29 FAULT HANDLING ........................................................................................................................................ 29 FAULT LOGGING VIA MODBUS...................................................................................................................... 30
Table of Figures
Figure 1: IPWR Approved Shipping Container………………………………………..……13
Figure 2: Enclosure Exterior …………………………………………………………………….…14
Figure 3: Door Clearance Guide……………………………………………………….……..….15
Figure 4: AC1 and DC2/DC3 Interconnect Boards….……………………………….…..17
Figure 5: Combiner Access Door………………………………………………….……….…….20
Figure 6: Bottom View of Combiner. …………………………………………………..…….20
Figure 7: Internal View of Ground Referenced Combiner……………….………....21
Figure 8: Internal View of Floating Combiner..………………………………………..…22
Figure 9: Front Panel LED…………..…………………………………………………………..….28
Table of Tables
Table 1: Inverter Safety Features…………………………………………………….……….….9
Table 2: Inverter Weight………………………………………………………………………….…14
Table 3: Terminal Tightening Torques …………………………………….……………...…17
Table 4: DC Wiring Nomenclature …..………………………………………………….…....18
Table 5: IEEE 1547.1 Default Voltage and Trip Time Ranges ……………………….25
Table 6: IEEE 1547.1 Default Frequency and Trip Time Ranges ……………….….25
Table 8: Fault Bit Mapping………………………………………………………..………….……30
Table 9: Fault Quick References Table…………………………………………..…….…….31
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 4 of 31
Glossary of Terms
Acronym or Term Full Expression
AWG American Wire Gauge
CEC California Energy Commission
CPU Central Processing Unit
CSA Canadian Standards Association
DMM Digital Multi-Meter
FRU Field Replaceable Unit
GFDI Ground Fault Detection Current
IFM Insulation Fault Measurement
IMI Isolation Monitor Interrupter
Inverter Ideal Power Inverter, 30PV, 30PV+S, 30PVF, 30PVF+
LED Light Emitting Diode
MPPT Maximum Power Point Tracking
PCB Printed Circuit Board
PV Photovoltaic
SECTION 1.0 Introduction and Purpose
The purpose of this manual is to describe the proper installation, operation, maintenance,
and troubleshooting of the Ideal Power (“IPWR”) SunDial™ 30PV 30kW 3-Phase
Commercial String Inverter, as well as the SunDial™ Plus 30PV+S: 30kW 3-Phase
Commercial PV Inverter with Energy Storage.
The SunDial™ includes an integrated PV Combiner and DC Disconnect, and is
available in the following product configurations:
30PV: PV String Inverter with ground-referenced 6-String Combiner.
30PVF: 30kW 3-Phase PV String Inverter with floating 6-String Combiner.
30PV+S: 30kW 3-Phase PV String Inverter with grounded-referenced 6-String
Combiner, and factory installed energy storage port
30PVF+S: 30kW 3-Phase PV String Inverter with floating 6-String Combiner, and
factory installed energy storage port
+S Kit: a field upgrade kit. Will detailed in a separate installation document.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 5 of 31
The SunDial™ Series utilizes a novel Link Transformer coupled with IPWR’s patented
Power Packet Switching Architecture (“PPSA”) to deliver full galvanic isolation between
the AC grid and the PV Array. This isolation also delivers versatility PV Array wiring
options; both floating and ground-referenced unipolar PV Array are supported. Select
the appropriate Combiner model (floating or grounded), to support your specific
application.
The power ports for the SunDial™ Series include:
AC1: 3-Wire, 3-Phase unidirectional AC power output port.
DC2: DC port dedicated to PV Arrays.
DC3 (+S systems only): an auxiliary DC port dedicated to battery energy storage
systems.
FCC Compliance
Pending - This equipment has been designed to meet the limits for a Class A digital
device, pursuant to part 15, Part B of the FCC Rules.
RMA and Service Contact
Do not ship or return the Inverter without prior authorization from Ideal Power Inc.
A Return Material Authorization (RMA) number must first be obtained from Ideal Power’s
customer service department.
Use the following contact information for all technical support:
Mail Ideal Power 4120 Freidrich Lane Suite 100 Austin, TX 78744 Attn: Technical Support Email & Phone For technical support: support@idealpower.com For warranty claims: warranty@idealpower.com 512.264.1542 Online Warranty Registration www.idealpower.com/customers
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 6 of 31
SECTION 2.0 IMPORTANT SAFETY INSTRUCTIONS
Inverter models covered in this manual: 30PV; 30PVF; 30VPV +S; 30PVF+S.
SAVE THESE INSTRUCTIONS
This manual contains important instructions for the Ideal Power 30PV; 30PVF; 30PV
+S; 30PVF+S PV Inverters. All wiring must be in accordance with the National Electric
Code ANSI/NFPA 70.
The following safety notices are used in this manual:
Danger - Procedures or situations that require action to prevent personal injury or damage to equipment.
Warning - Indicates a potentially hazardous situation that, if not avoided, can result in serious injury or death.
Important information: Includes key information for the operation of this equipment or specific instructions to maintain the warranty.
Safety Instructions: All Installations
Danger - This product includes Ground Fault Detection for both grounded and ungrounded operation of PV systems. All instructions regarding the configuration of this device must be followed. Failure to follow may result in injury, death, or damage to equipment. All GFDI related information will be marked with the symbol below:
Danger – To avoid an electric shock, verify that the Inverter’s external AC and DC
Disconnects are open (off). A minimum wait time of five (5) minutes is required after
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 7 of 31
opening AC and DC Disconnects to assure that the Inverter’s internal capacitors have
discharged to zero voltage before performing any work on the Inverter. Utilize lockout
procedures to insure that both AC and DC Disconnects remain in the off position during
all service periods.
Warning – This photovoltaic rapid shutdown equipment (RSE) does not perform all of
the functions of a rapid shutdown system (RSS). This RSE must be installed with other
equipment to form a complete RSS that meets the requirements of NEC (NFPA 70)
section 690.12 for controlled conductors outside the array. Other equipment installed in
or on this PV system may adversely affect the operation of the PVRSS. It is the
responsibility of the installer to ensure that the completed PV system meets the rapid
shut down functional requirements. This equipment must be installed according to the
manufacturer’s installation instructions.
Safety Instructions: Battery Installations
Danger – The Inverter enclosure contains exposed high voltage conductors. The
enclosure’s front access and Combiner doors must remain closed, except during
installation, commissioning, or maintenance by trained service personnel. Do not open
or remove either door if extreme moisture is present (rain, snow, or heavy dew).
Danger – To avoid an electric shock, verify that the Inverter’s external AC and DC
Disconnects are open (off). A minimum wait time of five (5) minutes is required after
opening AC and DC Disconnects to assure that the Inverter’s internal capacitors have
discharged to zero voltage before performing any work on the Inverter. Utilize lockout
procedures to insure that both AC and DC Disconnects remain in the off position during
all service periods.
Warning – These instructions DO NOT contain any information on the operation of
battery systems outside of this product. Refer the manufacturer for the battery system
for installation and servicing instructions.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 8 of 31
Safety Instructions: Additional
Danger – The Inverter enclosure contains exposed high voltage conductors. The
enclosure front access and Combiner doors must remain closed, except during
installation, commissioning, or maintenance by trained service personnel. Do not open
or remove either door if extreme moisture is present (rain, snow, or heavy dew).
Danger – Ensure that the equipment is adequately installed and grounded per this
manual and all applicable codes.
Danger – Do not leave foreign objects in the Inverter enclosure. Keep the area around
the enclosure clear of trash, debris, and other combustible materials.
Warning – Personnel Qualification: Inspections and operations requiring access to
lethal AC or DC voltages, should only be performed by qualified personnel.
Warning – All field wiring must conform to the codes set forth in the National Electric
Code ANSI/NFPA 70.
Warning – A separate AC and a separate DC disconnect must be installed with this
system.
Warning – Electrostatic Discharge (ESD) Damage: The Inverter contains ESD-
sensitive equipment. Failure to use ESD control measures while servicing the
equipment may result in component damage and void the warranty.
Warning – Service and maintain the Inverter in accordance with applicable Ideal Power
procedures. Discontinue Inverter use until all equipment defects and safety hazard have
been cured. Replace damaged warning and precautionary labels.
Safety Instructions: Handling
Warning – The SunDial™ Inverter, with combiner, weighs approximately 150 pounds. It
is designed to be transported and wall-mounted by two people, without the use of lift or
power equipment. If lift or power equipment is used to move, or lift the Inverter, follow all
safety rules. Failure to do so could result in personal injury or equipment damage.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 9 of 31
Integrated Safety Features
The 30PV; 30PVF; 30PV+S; and the 30PVF+S incorporate the following safety
features:
Table 1: Inverter Safety Features
Feature
Action
Hinged Front and
Combiner Doors
Prevents access to hazardous AC and DC voltages and
protects internal circuitry.
Integrated fused 6-
string Combiner with
lockable DC
Disconnect
Prevents access to hazardous DC voltages and protects
internal circuitry. Fuses protect field PV wiring.
DC Ground Fault
Detection
Takes Inverter off-line when DC input ground fault is
detected on either the DC2 or DC3 Ports. Both GFDI
(ground referenced connection) and IMI (floating
connection) are supported.
DC Overcurrent and
Overvoltage Detection.
The Inverter will shut down immediately if DC input
voltages or currents are out of range.
PV Arc-Fault Detection
Both versions of the PV Combiner incorporate an integral
Arc-fault detection. The Inverter will shut down
immediately if such a fault is detected. This will require a
site visit to reset the Inverter.
AC Overcurrent and
over/under Voltage
Detection.
The Inverter will shut down immediately if AC input
voltages or currents are out of range.
AC Frequency Out of
Range
The Inverter will shut down immediately if the grid
frequency is out of range.
Anti-islanding
protection
The Inverter will shut down immediately after detecting
any of the AC faults described above. A five (5) minute
restart timer is implemented on all grid-fault events.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 10 of 31
Ground Fault Detection – Ground Referenced PV Combiner (30PV / 30PV+S)
For ground referenced PV array connections, the negative leg of DC2 (PV) and the
negative leg of DC3 (Battery: +S systems only) are electrically common and referenced
to earth ground through a shared 1 A GFDI fuse to detect ground fault conditions. If
such conditions are detected, the Inverter is automatically taken off-line. The Inverter
will not attempt to restart until the fault condition is cleared, and AC Power is cycled.
If the ground fault detection fuse shared between DC2 and DC3 is blown as a result of a
fault event, it must be replaced in order for the Inverter to attempt restart. Faults are
indicated on the Front Panel Display, and are also available via the Modbus RTU or
Modbus TCP communication interfaces.
Ground Fault Detection – Floating PV Combiner (30PVF / 30PVF+S)
Floating PV Arrays and Batteries (+S option only) utilize an onboard “IMI” ground fault
detection scheme. This enables the Inverter to measure the conductors of the DC
Power source. If leakage to ground is present past the limits set in UL 1741 then the
unit will fault and prevent operation until the fault is cleared from the DC source(s).
Note that the negative legs of DC2 (PV Array) and DC3 (Battery: +S option only) are
electrically common, but remain floating, relative to earth ground.
In the event of an “IMI” fault, the fault can only be cleared by cycling AC power to
the unit.
DC Over/Under Voltage Fault Detection
The Inverter also has DC over-voltage (default is 1000 Vdc) and DC under-voltage
(default is 100 Vdc) detection circuitry. If these limits are exceeded the Inverter will shut
down, or if commanded to make power, will not start. These default limits are easily
changed via the Modbus interface; however, they cannot be programmed above the
1000 Vdc factory maximum.
AC Current Fault Detection
The output voltage is synchronized to the AC utility line. The Inverter operates as a
current source following the grid voltage waveform (“voltage-following”). Should the
Inverter experience an AC current fault condition, it is automatically taken off line. The
Inverter is shipped from the factory with a default five (5) minute restart countdown
timer.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 11 of 31
AC Frequency and Voltage Fault Detection
The quality of the power delivered to the utility line must meet or exceed the
requirements as specified in IEEE 1547a. If the utility frequency or voltage shifts outside
the regulatory specified limits, the Inverter will automatically detect the condition and
shutdown. The Inverter is shipped from the factory with a default five (5) minute restart
counter for AC over/under Frequency limit faults and AC over/under voltage limit faults.
Regulatory Information
The 30PV; 30PVF; 30PV +S; 30PVF+S PV Inverters are certified to the following
standards for the North American market:
UL 1741: Standard for Battery Inverters, Inverters, Controllers, and
Interconnection System Equipment for Use with Distributed Energy Resources
IEEE 1547a: Distributed Resources Interconnection and Interoperability with the
Grid
UL 1998: Software in Programmable Components
SECTION 3.0 System Specifications
Maximum AC Input Voltage 528 Vac
Maximum DC Input Voltage 1000 Vdc
AC Operating Voltage Range 422 to 528 Vac
DC Operating Voltage Range 100 to 1000 Vdc
DC Maximum Input Current 60 A (10 A per PV string)
DC Minimum Start-up Current 1 A
AC Maximum Input Current 44 A
AC Minimum Start-up Current 1 A
Maximum Input Source Backfeed Current to Input Source
Pending
Maximum Input Source Backfeed Current to Input Source
Pending
Output Power Factor Range 0.95 Leading to 0.95 Lagging
Operating Frequency Range 57 to 64 Hz
Nominal AC Output Voltage 480 Vac
Nominal DC Output Voltage 750 Vdc
Nominal Output Frequency 60 Hz
Maximum AC Continuous Output Power 29.99 kW
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 12 of 31
Maximum DC Continuous Power 30 kW
Maximum AC output fault current and duration TBD
Maximum DC output fault current and duration TBD
Maximum AC output overcurrent protection (software) 44 A RMS
Maximum DC output overcurrent protection (software)
60 A
DC Charging Output Voltage Range 100 to 1000 Vdc
Utility Interconnection Voltage and Frequency Trip Limits and Trip Times
UL 1547.1 Compliant, see Tables 6 and 7.
Synchronization In-rush Current TBD
Trip Time Accuracy TBD
Trip Limit Accuracy Voltage TBD
Trip Limit Accuracy Frequency TBD
Temperature Range (full power operation) -25 °C to 50 °C
Maximum Operating Temperature (output derated) 60 °C
Typical Efficiency 95%
Maximum Efficiency 95.5%
Tare Losses 15 W
External Power supply voltage range input to Inverter 18 to 26 Vdc
GFDI trip limit 1 A
IMI trip level < 3.8 k Ohms to ground
Communication Interfaces RS485 Modbus RTU-2W / Modbus TCP Over Ethernet
NEMA rating 3R
Weight Approximately 150 lbs.
SECTION 4.0 Unpacking and Mounting the Inverter
Two-man lift: Observe all safe practices while moving or mounting the Inverter. The
Inverter can be set safely on its back or vertical if properly supported until it’s ready to
be mounted.
Storage before installation: Store the Inverter in its original shipping container indoors in
a non-condensing environment between -40 °C to 85 °C.
Disposal of shipping material: Please adhere to all local recycling if you choose to
dispose of the shipping material.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 13 of 31
Figure 1: IPWR Approved Shipping Container
1. Box
2. Mounting Bracket
3. Mounting Hardware
4. Foam
5. Customer Quick Link Card
6. Inverter
Inverter Mounting
The SunDial™, when installed on its wall mounting bracket, weighs approximately 160
pounds. External dimensions are 20.7” W x 51.1” H x 16.6” D. The SunDial™ MUST
always be installed in a vertical upright position for final installation, as well as
evaluation purposes. Do not block cooling airflow to the bottom air intake filter, or the
exhaust output, which is located on the upper door face of the unit.
Clearances for Inverter Mounting:
1. Minimum bottom clearance requirement: Outdoors: 36 inches above ground;
Indoors: 18 inches above floor. Violation of this clearance will void the warranty.
2. Minimum front clearance requirement: 36 inches from the front of the Inverter
must be clear of flammable materials or obstructions.
3. Minimum side clearance requirement: 4 inches from the left and right sides of the
Inverter must be observed. The product label must be clearly visible at all times.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 14 of 31
Warning: The unit must be mounted upright and level for the closed loop liquid cooling
system to work correctly.
Figure 2: Enclosure Exterior
Step 1. Secure the wall mounting bracket to the desired surface using either a metal
Uni-strut type railing rated for the Inverters weight or a concrete wall. Ensure mounting
bracket is level within +/- 5 degree.
Step 2. Using a two-man lift procedure carefully lift the Inverter and set it on the
provided wall bracket.
Step 3. Secure the bottom two bolts located at the bottom plate of wall bracket to the
Inverter. Torque these to 40 inch-pounds.
Step 4. Confirm the Inverter is mounted level and that the minimum clearance has been
met.
Table 2: Inverter Weight
30PV /30PVF ˜150 lbs.
30PV+S / 30PVF+S ˜152 lbs.
Mounting Bracket ˜8 lbs.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 15 of 31
Figure 3: Door Clearance Guide
The Inverter installation must allow for the front door to swing freely open for service purposes. Although 90 and 180-degree swing angles are shown above, a minimum swing angle of 135 degrees is required to ensure that access for initial system wiring and ongoing maintenance of the unit is not compromised.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 16 of 31
Inverter Removal and Preparation for Shipment
1. Open AC Disconnect.
2. Open DC Disconnect(s).
3. Wait five (5) minutes for capacitors to discharge.
4. Open the enclosure’s hinged access front cover.
5. Disconnect the AC and DC power cables.
6. Disconnect the Conduit connections.
7. Disconnect Modbus Interface cables, and other low-voltage cables.
8. Disconnect chassis ground connections.
9. Close the front cover.
10. Remove the Inverter from the wall mount bracket.
11. Package the Inverter in IPWR approved packaging (Double wall, B/C fluting box,
and foam packing).
SECTION 5.0 AC and DC Terminals - Wiring and Installation
Tools Required:
-To open enclosure and Combiner doors – 3 mm Allen Wrench. -To connect field AC and DC wiring – flat blade Screwdriver. -To connect earth ground safety wiring - flat blade Screwdriver.
Danger – Do not remove or reconfigure the Inverter’s factory wiring. Contact Ideal
Power at support@idealpower.com.
Warning – Changing the Inverter’s DC jumper configuration as it was received from the
factory may result in unexpected or unsafe operation. DC jumper configuration must
match the approved field wiring configuration. Consult a certified professional before
changing the Inverter’s factory defaults. All ground-referenced and ungrounded
connections must be field wired to NEC NFPA 2015 standards.
Warning – All AC wire connections are to be made with UL listed 6-gauge wire rated for
600 Vac; 40 A. All wires shall be torqued to 50 inch-pounds.
Warning - The Inverter’s default configuration supports a 480 Vac line-to-line 60 Hz grid
connection.
Warning – Grounding the Inverter must be done using the provided ground lug.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 17 of 31
Important information: - Ideal Power’s SunDial™ Inverters feature AC power
interfaces that are galvanically isolated from all DC source(s).
Figure 4: AC1 and DC2/DC3 Interconnect Boards (+S version shown)
Table 3: Terminal Tightening Torques
Terminal Block Location Wire Size / Torque
AC Compression Terminals: T4,T5,T6
Bottom of AC1 Wiring Interconnect Board
#4-6 AWG / 62 Inch-pound
DC Compression Terminals: T5,T6,T7,T8,T9, T10
Bottom of DC2/DC3 Wiring Interconnect Board
#4-6 AWG / 62 Inch-pound
Ground Terminal Below AC1 Wiring Interconnect Board
#4-6 AWG / 62 Inch-pound
Inverter Ground
The Inverter has an Earth Ground compression terminal that supports up to 4-gauge
wire for ground connections. All terminations are made to bare wire, using a flat blade
screwdriver drive head. No crimping is required when making the ground connection.
AC Wiring
Connect the 3-480 Vac phase legs to terminals T4, T5, and T6; (Phase A, Phase B, and
Phase C), utilizing the compression terminals as described above. The order of the
phases is not critical as the Inverter will sense and follow the AC grid. All power is
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 18 of 31
made between the phase legs. No neutral connection is required, or provided on the
SunDial™ Series. Torque all connections as outlined in Table 3.
AC External Circuit Protection and Disconnect
The SunDial™ must be installed with external circuit protection. A 50A 3-Phase 3-wire
AC breaker, rated at 480 Vac is commonly used for such purposes. In some jurisdictions,
this circuit breaker may also be approved for use as a safety disconnect. However, Ideal
Power recommends that you confirm specific AC disconnect requirements with your local
Authority Having Jurisdiction (“AHJ”). Some utilities may require an external “red-handle”
lockable disconnect, in additional to the protection breaker.
DC Wiring
Table 4: DC Wiring Nomenclature
Terminal Description Used by 30PV /
30PVF Used by 30PV+S /
30PVF+S
T7 +DC2* YES YES
T8 -DC2 (DC Common)* YES YES
T9 -DC3 (DC Common) NO YES
T10 +DC3 NO YES
T5, T6 GFDI Sense Internally
connected
Internally
connected
*Factory wired to Combiner output.
DC Connection Terminal Overview
T7 is the positive PV connection for DC2. T8 is the negative PV connection for
DC2. These DC power connections are factory wired to the Combiner. Do not
disturb or change these connections.
T10 is the positive battery connection for DC3. T9 is the negative battery
connection for DC3. These DC power connections are utilized by the 30PV+S /
30PVF+S only.
GFDI sense inputs (T5, T6) are factory internally connected. Do not make a
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 19 of 31
connection to these terminals as this would interfere with the GFDI function.
Note that the negative input for DC2 (T8: DC COM) and the negative input for
DC3 (T9: DC COM: +S option only) are wired together and are electrically
common behind the Filter Chokes installed on DC2 and DC3 (+S option only).
DC Wiring Options
The DC2 Port supports either ground-referenced monopolar, or floating PV connections,
depending upon the Combiner type selected.
If a floating Combiner is selected, the battery connected to DC3 (30PVF+S only)
MUST also be floating, and cannot be referenced to earth ground.
If a ground-referenced Combiner is selected, the battery connected to DC3
(30PV+S only) will be ground-referenced,.
Note that there are configuration jumpers on the DC2/DC3 Interconnect Board.
These jumpers are factory configured to support either the floating, or ground-
referenced Combiner type. Do not disturb or change these connections.
Note that the floating and ground-referenced Combiners are unique and different
equipment designs. They are not interchangeable.
Combiner Overview
Access to both the enclosure and the Combiner requires a 3 mm Allen Wrench. The
Combiner’s DC Disconnect must be in service position (facing left) to open the Combiner
door. The DC Disconnect is “ON” when facing up or down. For lockout purposes, the DC
Disconnect must face right. The Combiner and enclosure doors are both hinged on the
left side.
Both versions of the Combiner feature three 1-inch conduit fittings located on the
Combiner bottom access panel. The conduit fittings simplify the routing and termination
of AC1 and DC3 (+S option only) power cables, as well as low-voltage control
wiring. Once routed through the Combiner, the AC and DC power is terminated on the
AC1 and DC2/DC3 interconnect boards. Low-voltage control wiring is terminated to the
control board, located on the upper left side of the enclosure. Use the left-most Conduit
fitting, as well as the two cable-guides provided in the enclosure to route and contain low-
voltage wiring.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 20 of 31
The Combiner’s base includes three (3) one-inch flexible conduit fittings for low-voltage
control, AC, and DC3 battery connections (+S option only). Both versions of the Combiner
also include 6-pairs of MC4-type bulkhead connectors for field-termination of PV Strings.
Packaged within each Combiner are 6-pairs of field-crimpable MC4-type connectors
(crimp tool is not provided). The internal designs of the ground-referenced Combiners
are notably different in layout, component count, and location. The ground-referenced
Combiner utilizes six (6) string fuses, located on the positive leg of the string inputs. The
floating Combiner utilizes 12-string fuses, one on each positive, as well as each negative
string input.
Figure 5: Combiner Access Door
Figure 6: Bottom View of Combiner
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 21 of 31
Figure 6 provides a bottom view of the Combiner. Both the floating and ground-
referenced versions of the Combiner share this common set of connectors.
PV String Wiring Up to six (6) PV strings are terminated to the 12 Amphenol MC4 bulkhead connectors
located in the center of Figure 6. The blue plugs shown are removed and discarded
prior to termination. A total of 6-female and 6-male 10-gauge Amphenol MC4 crimp
connectors are provided by Ideal Power (bubble-packed in the Combiner), for field
wiring and termination.
Control and Grid Wiring The 1-inch conduit fittings located to the left of the MC4 connectors support low-voltage
and AC1 (AC power) connections to the Inverter. Both low-voltage control as well as
the AC power wiring pass through the Combiner; for termination on the Control Board
and the AC1 Interconnect Board.
Battery Wiring The 1-inch conduit fittings located to the right of the MC4 connectors support the DC3
battery wiring connection for SunDial™ +S systems. This wiring passes through the
Combiner for termination on the DC3 (T10) and DC COM (T9) terminals which are located
on the D2/DC3 Interconnect Board. The conduit fitting may be field replaced as necessary
to support other conduit types. This is not utilized in PV-only applications.
DC3 (Battery) External Circuit Protection and Disconnect
The 30PV+S must be installed with external fused circuit protection on its DC3 (battery)
power port. A 1000 Vdc rated, 100 A fused PV Disconnect is commonly used for such
purposes. However, Ideal Power recommends that you confirm specific DC disconnect
and safety requirements with your local Authority Having Jurisdiction (“AHJ”).
Figure 7: Internal View of Ground-Referenced Combiner
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Ground-Referenced Combiner
The 30PV and 30PV+S SunDial™ Inverters utilize a circuit that references the negative
leg of the combined PV Strings to earth ground via Ground Fault Detection Interface
(GFDI) circuit, which senses DC fault currents. The 1 A fault fuse located on the
DC2/DC3 Interconnect Board will open whenever a ground fault on DC COM of > 1 A is
encountered. The fuse must be replaced; the fault condition must be cleared; and the
Inverter AC power must be cycled, to clear the Inverter’s internal GFDI fault. This is
known as a “lock-down” fault, requiring a site visit to clear.
The ground-referenced Combiner utilizes six (6) “touch-safe” string fuses located on the
positive leg of each string input, the six (6) negative String legs are not fused.
The combined positive legs are connected internally to DC2 (T7) on the DC2/DC3
Interconnection Board, which is located in the main enclosure, above the Combiner.
The combined negative legs are connected internally to DC COM (T8) on the DC2/DC3
Interconnection Board.
A PV arc-fault detection circuit is mounted above the fuse holders, with its detection
toroid mounted to the immediate right. A detected arc-fault is a lock-down fault
condition, requiring a site visit to clear. See Section 8.0 for more fault details.
Floating Combiner
The 30PVF and 30PVF+S SunDial™ Inverters utilize an IMI circuit for the detection of
ground faults. Describing the operation of this fault detection circuit is beyond the scope
of this manual, however, like the GFDI circuit described above, an IMI-detected ground
fault on DC COM is a lock-down fault requiring a site visit to clear.
Figure 8: Internal View of Floating Combiner
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 23 of 31
Verification of Electrical Connections
Use the following procedure to verify final Inverter wiring after completing the AC, DC,
and Ground wiring as detailed in Section 5.0. High voltages are present and only qualified
personnel following safety procedures detailed in Section 2.0 should attempt the
following:
1. Open all AC and DC Disconnects
2. Open the enclosure front door and the Combiner door
3. Close the external AC Disconnect connected to Port AC1
a. Using a DMM on the AC voltage scale, verify that 480 Vac 3-Phase power is
present on the AC terminals. Measurements from each individual phase-leg
to ground should read approximately 277 Vac
b. If observed AC measurements do not meet the above requirements,
immediately open the AC Disconnect and remedy AC wiring faults
4. Close the external DC Disconnect connected to Port DC3 (only applies to models
30PV+S / 30PVF+S)
a. Using a DMM on the DC voltage scale, measure the the battery DC input
voltages (T9 and T10)
b. If observed DC voltages are higher than 1000 Vdc or outside of battery
design expectations, open the DC Disconnect and remedy DC wiring faults.
c. Measure voltage from T9 (DC3 Common) to earth ground and confirm the
following:
i. For a ground-referenced Combiner application, voltage between T9
and earth ground should read “0” volts, or
ii. For a floating Combiner application, the voltage should read other than
zero. Then meaure the voltage from T10 (DC3 positive) to earth
ground: the sum of these two measured voltages should be equal to
the observed battery voltage
5. Open all string fuses in the Combiner
a. Install the first PV string by connecting it’s MC4 negative and postive
connectors to the leftmost pair of MC4 bulkhead connectors
b. Using a DMM on the DC voltage scale, measure the the PV string DC open
circuit voltages
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 24 of 31
i. For ground-referenced applications, meaure the voltage between earth
ground and the appropriate string fuse input lug, or
ii. For floating applications, measure the voltage between the positive
input lug of the appropriate string fuse and it’s corresponding negative
lug.
c. If observed DC voltages are higher than 1000 Vdc or outside of PV array
open-circuit (Voc) design expectations, remedy DC string wiring faults
d. Close string fuse
6. Repeat Steps 5a through 5d for remaining strings. Ensure that all open circuit
voltages match one-another within a few volts. Remedy any string wiring faults if
encountered, before closing remaining string fuses
7. Once all string voltages are measured and closed, close and secure the Combiner
door, and rotate the Combiner DC Disconnect to the closed (up) postion
a. Using a DMM on the DC voltage scale, measure the the combined PV DC
input open circuit (Voc) voltages between DC2 Com (T8) and DC2+ (T7)
b. If observed DC voltages are not within a few volts of previously measured PV
open circuit voltages, open the DC Disconnect, and return to Step 5
c. Measure voltage from T8 (DC2 Common) to earth ground and confirm the
following:
i. For a ground-referenced Combiner application, voltage between T8
and earth ground should read “0” volts, or
ii. For a floating Combiner application, the voltage should read other than
zero. Then meaure the voltage from T7 (DC2 positive) to earth
ground: the sum of these two measured voltages should be equal to
the observed PV array open circuit voltage (Voc)
8. Close and secure the enclosure front door
SECTION 6.0 Operating and Shutdown Conditions
The Inverter is shipped in an idle power state, and will not respond to power export or
import commands, as commanded via Modbus, until the following conditions are met:
All external AC and DC Disconnects are closed.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 25 of 31
No DC Port input ground faults have been detected.
DC Port input voltages are within the specified operating range, as set by the
Modbus Interface.
There are no sensed fault conditions, as defined in Section 7.0.
AC grid voltage and frequency are within specified IEEE 1547.1 default ranges,
and islanding is not detected. Voltage and Frequency Ranges are detailed
below.
Table 5: IEEE 1547.1 Default Voltage and Trip Time Range
Voltage Range (expressed as % of base voltage)
Clearing Time (s)
Clearing Time: adjustable up to, and including (s)
V < 45 0.16 0.16
45 < V < 60 1 11
60 < V < 88 2 21
110 < V < 120 1 13
V > 120 0.16 0.16
Table 6: IEEE 1547.1 Default Frequency and Trip Time Range
Default Settings Ranges of Adjustability
Function Frequency (Hz)
Clearing Time (s)
Frequency (Hz)
Clearing Time: adjustable up to, and including (s)
UF1 < 57 0.16 56 to 60 10
UF2 < 59.5 2 56 to 60 300
OF1 > 60.5 2 60 to 64 300
OF2 62 0.16 60 to 64 10
SECTION 7.0 Maintenance and Troubleshooting
Annual Preventive Maintenance
The procedures in this section are to be performed only by qualified personnel.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 26 of 31
Danger: HIGH VOLTAGE
To eliminate high voltages inside the Inverter enclosure:
All DC Disconnects must be open
All AC Disconnects must be open
Wait at least five (5) minutes for internal capacitors to discharge
DO NOT open the enclosure door or Combiner door until the Inverter has been
rendered safe in this manner. High DC voltages may be present on terminals of an open
GFDI Fuse if the DC Disconnect is NOT open.
Verify Proper Airflow
Check the bottom airflow intake filter and ensure that the forced air intake and exhaust
vents on the bottom and at the top front of the Inverter are not obstructed. Note that
under low-power conditions fan speeds and noise levels are quite low.
Remove and clean the filter if the airflow is restricted due to dust or other debris.
Replace the filter, if soiled.
Power Terminals Torque Check
Annually re-torque the power terminals to the specified torque levels in Table 3.
1. Open both external DC Disconnects and lock in the open position.
2. Open the external AC Disconnect and lock in the open position.
3. Wait at least five (5) minutes for the Inverter internal capacitors to discharge to safe
voltage levels.
4. Open the enclosure front door.
5. Using a DMM on the DC voltage scale, measure all DC input voltages, to verify that
DC line capacitors have bled down to a safe voltage level.
6. Using a DMM on the AC voltage scale, measure the AC input voltages, to verify tat
AC line capacitors have bled down to a safe voltage level.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 27 of 31
WARNING: Measure T7 to T8, T10 to T9, and from each terminal to chassis GND, to
ensure that all voltages have bled down to a safe level.
7. Using a calibrated torque wrench fitted with an appropriate flat screwdriver tip,
tighten the terminals listed in to the specified torque levels in Table 3 (torque levels
conform to UL 1741: Table 66.1).
Cooling System Inspection
1. With the Inverter operating, verify that the fan is operating correctly, with no
appreciable bearing or mechanical noise.
2. Safely shut down the Inverter as detailed above (re-torque power connections), and
inspect the heat exchanger for blockage or damage.
3. If the heat exchanger is blocked or damaged contact Ideal Power.
4. With the Inverter shut down, remove and inspect bottom fan intake filter by removing
the retaining thumbscrew. Clean filter carefully with compressed air and re-
assemble.
5. If the fan is noisy or otherwise suspect, contact Ideal Power for a replacement unit and installation instructions.
Inverter Troubleshooting
The procedures in this section are to be performed only qualified personnel.
Danger: HIGH VOLTAGE
To eliminate high voltages inside the Inverter enclosure:
All DC Disconnects must be open
All AC Disconnects must be open
Wait at least five (5) minutes for internal capacitors to discharge
DO NOT open the enclosure front door until the Inverter has been rendered safe in this
manner. High DC voltages may be present on terminals of an open GFDI Fuse if the DC
Disconnect is NOT open.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 28 of 31
Clearing GFDI Faults- Ground Referenced Applications
In the event of a detected ground fault the Inverter will cease exporting or importing
power. The fault will be noted on the front panel display. If the fault exceeds 1 A, the
ground fault detection fuse will open. The DC2 Port (30PV) and the DC3 Port (30PV+S)
both share a ground fault detection circuit and fuse. If a ground fault is indicated,
inspection and repair of wiring should be referred to qualified personnel. Once the
ground fault is remedied, check the front panel display for an indication that the
detected ground fault condition has cleared. If the display indicates the ground fault
interruption fuse has opened, follow the procedure below to replace the ground fault
fuse. Use an identical 508 Series 3AB 1 A fuse type for replacement.
Clearing GFDI Faults - Floating Applications
In the event of a detected ground fault the Inverter will cease exporting or importing
power. The fault will be noted on the front panel display. In floating applications, an IMI
impedance sensing circuit is utilized.
If a ground fault is indicated, inspection and repair of wiring should be referred to
qualified personnel. Once the ground fault is remedied, check the front panel display for
an indication that the detected ground fault condition has been cleared.
Front Panel Display
The SunDial™ front panel display features five (5) LED signals:
• FAULT LED: blinking red if Inverter has an active fault, solid red if Inverter has
GFDI/IMI/fan lockdown fault, dark otherwise
• AC PORT LED: blue if AC1 has voltage >= 120V (line-to-line)
• PV PORT LED: blue if PV/DC2 has voltage >= low-lim register
• EXPORT LED: blue if Inverter is converting power (blinking 1 Hz to 6 Hz rate
proportional to power level, i.e. blink faster if higher power)
Figure 9: Front Panel LED
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 29 of 31
Inverter Fault/Status Codes
A more comprehensive set of Fault and Status codes shown is available via the Modbus
RTU and/or the Modbus TCP Interface. Refer to Application Note 302 (DOC-00037) for
monitoring and managing SunDial™ faults via the Modbus Interface. Portions of that
document are detailed in Section 8.0.
SECTION 8.0 Fault Overview
As noted earlier, the system is installed in an “all Ports idle” configuration state.
No Port-to-Port power transfers can or will occur until the system is configured
and commanded to move power by the system controller.
Without the system controller present, or an appropriate means to command and
monitor the Inverter via the Modbus RTU or Modbus TCP interface, other than
the front panel display, there is no means to configure, command, or monitor the
Inverter.
If an Abort fault is active, or a Lockdown fault has occurred, the Inverter will not
respond to power commands until the fault has cleared.
Fault Handling
An Ideal Power Inverter allows for a partly automated fault handling system which
operates broadly as follows. When a fault limit is reached or exceeded during operation,
the Inverter will shut down and flag an Active Fault. Provided the Inverter is being run in
Automatic Mode, once the fault condition has passed the Inverter will clear the Active
Fault flag, increment a counter on the associated Occurred Fault then initiate a count-
down timer.
Once a count-down timer reaches zero the Inverter will attempt to reconnect and
resume operating as it was prior to the fault. The Inverter may also be operated in
Manual Mode which is intended for manual test or troubleshooting operation. If run in
Manual Mode, the Inverter will not automatically attempt a restart after a fault
countdown.
The Inverter has 53 possible faults each of which are assigned one of the severity
categories below:
Info: increments the fault counter only – not detailed in this section
Alert: increments the fault counter only – not detailed in this section
Alarm: fault is logged – not detailed in this section.
Abort 0: fault is logged and unit is stopped. Reconnect timer 0 is used for restart.
Abort 1: fault is logged and unit is stopped. Reconnect timer 1 is used for restart.
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 30 of 31
Abort 2: fault is logged and unit is stopped. Reconnect timer 2 is used for restart.
Lockdown: fault is logged, unit stops, and requires an AC power cycle to restart.
The severity levels determine if the fault is simply recorded or whether the Inverter
should be automatically shut down. Fault categories Abort 0-2 are associated with a
count-down timer. For these faults, an external acknowledgement or fault reset is not
required as is sometimes demanded by other equipment employing latching fault states.
Some faults are not automatically recoverable, such as is the case with a mechanical
fan failure, or open ground-fault fuse. These select faults are not assigned a reconnect
timer and typically require in-person intervention.
Abort 0 faults are associated with IEEE 1547 voltage & frequency grid limit
disconnection are assigned to reconnect timer #0 which has a factory default setting of
300 seconds (5 minutes) to comply with that utility interconnection code requirement.
Timers #1 and #2 are 20 seconds by default.
Changing the duration of reconnect timer #0 may invalidate your utility
interconnection agreement. Do not change this Inverter setting without utility
review and approval.
Fault Logging via Modbus
The hexadecimal fault set registers be decoded into four, 16-bit binary data fields to
determine what faults are currently active. The right most “word” indicates if a fault
between 0 to 15 is active; the next word indicates any fault between 16 and 31 which is
active, and so forth.
Table 8: Fault Bit Mapping
Fault
Set b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
2 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
3 63 62 61 60 59 58 67 56 55 54 53 52 51 50 49 48
Installation & Operations Manual SunDial™ Series PV Inverter Product Models: 30PV; 30PVF; 30PV+S; 30PVF+S MAN-00117, Rev A Page 31 of 31
For example: if Fault Set 1 were read via Modbus as hex 0C00; this translates to
0000.0000.0011.0000 in 16-bit binary format. That binary number Indicates that fault 26
and fault 27 are currently active. Note that fault positions 53 to 63 are reserved for
future use (gray colored cells in above table).
Table 9: Fault Quick Reference Table
Fault Description Severity Fault Description Severity
0 GFDI Fault Lockdown 26 AC under voltage level 1 trip Abort 0
1 IMI Fault Lockdown 27 AC under voltage level 2 trip Abort 0
2
Power module heatsink temperature fault Abort 1
28 AC under voltage level 3 trip Abort 0
3 Control board temperature fault Abort 1 29 AC under voltage level 4 trip Abort 0
4 24V auxiliary supply under voltage Abort 1 30 AC over voltage level 1 trip Abort 0
5 Fan fault Lockdown 31 AC over voltage level 2 trip Abort 0
6 DC differential over voltage Abort 1 32 AC over voltage level 3 trip Abort 0
7 DC differential under voltage Abort 1 33 AC over voltage level 4 trip Abort 0
8 Link over voltage Abort 2 34 AC under frequency level 1 trip Abort 0
9 Link starving Abort 2 35 AC under frequency level 2 trip Abort 0
10 Link over current Abort 2 36 AC under frequency level 3 trip Abort 0
11 IGBT VCES over voltage 1 Abort 2 37 AC under frequency level 4 trip Abort 0
12 IGBT VCES over voltage 2 Abort 2 38 AC over frequency level 1 trip Abort 0
13 IGBT VCES over voltage 3 Abort 2 39 AC over frequency level 2 trip Abort 0
14 IGBT VCES over voltage 4 Abort 2 40 AC over frequency level 3 trip Abort 0
15 AC A-B hard switch Abort 2 41 AC over frequency level 4 trip Abort 0
16 AC B-C hard switch Abort 2 42 Watchdog timeout Abort 2
17 AC C-A hard switch Abort 2 43 Emergency Stop Abort 0
18 DC2 input hard switch Abort 2 44 Sensing fault Abort 2
19 DC2 output hard switch Abort 2 45 Arc fault Abort 0
20 DC3 input hard switch Abort 2 46 Comms processor initiated shutdown Abort 2
21 DC3 output hard switch Abort 2 47 AC Surge detect Abort 1
22 Link state timer check Abort 2 48 AC switch breakdown voltage exceeded Abort 2
23 Bad link start Abort 2 49 DC switch breakdown voltage exceeded Abort 2
24 Invalid method/settings Abort 2 50 Precharge timeout Alarm
25 Island detected Abort 0 51 Link differential over voltage Abort 2
52 Link primary over voltage to ground Abort 2
End of Document.
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