vacuum generator ovem - festo usaovem festo – ovem – 1702e english 5 1 product description 1.1...

en Operating

instructions

8068021

1702e

[8068023]

Vacuum generator

OVEM

OVEM

2 Festo – OVEM – 1702e

Original instructions

OVEM-DE

Identification of hazards and instructions on how to prevent them:

Warning

Hazards that can cause death or serious injuries

Other symbols:

Note

Material damage or loss of function

Recommendations, tips, references to other documentation

Text designations:

� Activities that may be carried out in any order

1. Activities that should be carried out in the order stated

– General lists

� Result of an action/References to more detailed information

OVEM

Festo – OVEM – 1702e English 3

1 Product description 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.1 Structure 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Characteristics 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Security 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1 Use for intended purpose 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 General safety information 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Range of applications and certifications 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Function and application 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1 Function overview 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 Switching functions 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Valve control 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4 Air-saving function 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5 Optimisation of the transport time 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.6 Monitoring and diagnostics 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.7 Measured variables 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.8 Teach function (Teach-In) 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 Installation 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1 Mechanical 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 Pneumatic 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.3 Electric 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Commissioning 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.1 Commissioning vacuum suction nozzle 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2 Set the intensity of the ejector pulse 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 Operation 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.1 Setting the ejector pulse duration 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2 Configure the switching outputs 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2.1 Display switching output settings 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2.2 Setting the switching characteristics of a switching output 26. . . . . . . . . . . . . . . .

6.2.3 Set diagnostic message channel 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2.4 Teaching of switching points 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.2.5 Deleting the minimum or maximum pressure value 28. . . . . . . . . . . . . . . . . . . . . .

OVEM

4 Festo – OVEM – 1702e English

6.3 Configuring the evacuation and air supply times 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.3.1 Setting the limit values for the evacuation and air supply times 29. . . . . . . . . . . . .

6.3.2 Teaching the evacuation and air supply time 29. . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.3.3 Displaying the evacuation and air supply times 30. . . . . . . . . . . . . . . . . . . . . . . . .

6.3.4 Deleting the evacuation and air supply times 30. . . . . . . . . . . . . . . . . . . . . . . . . . .

6.4 Operating manual override 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.4.1 Mechanical manual override 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.4.2 Electrical manual override 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.5 Activating security code 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.6 Switching the air saving function on or off 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6.7 Restore factory settings 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 Error messages and fault clearance 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.1 Diagnostic levels 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2 Error messages and error codes 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.3 Malfunctions 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Disassembly 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9 Maintenance and care 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 Technical data 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11 Appendix 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11.1 Graphic display and LCD displays 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11.2 Operating statuses and menu structure 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11.2.1 Meaning of symbols for representing the menu structure 45. . . . . . . . . . . . . . . . .

11.2.2 RUN mode 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11.2.3 SHOW mode 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11.2.4 EDIT mode 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11.2.5 Teach mode 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OVEM


1 Product description

1.1 Structure

1 2 3 4

aJ

aA

aB

8

9

5 6

7

1 Ejector pulse solenoid valve (Eject)

2 Vacuum solenoid valve

3 Mechanical manual override of the solenoid

valves

4 Supply port (1)

5 Exhaust port / silencer (3)

6 Vacuum connection (2)

7 Housing with mounting holes

8 Slide for changing the filter element

9 Filter housing with inspection window

aJ Flow control screw for adjusting the ejector

pulse

aA Vacuum sensor with LCD display and

operating keys � Fig. 13

aB electrical connection

Fig. 1 Control sections and connections

OVEM


1.2 Characteristics

Characteristic Code Meaning

Vacuum suction nozzle OVEM Vacuum suction nozzle with vacuum solenoid valve ON/OFF

and electric manual override

Nominal width of laval

nozzle

-05 0.45 mm

-07 0.7 mm

-10 0.95 mm

-14 1.4 mm

-20 2.0 mm

Vacuum type -H high vacuum

-L high suction volume

Housing size / width -B 20 mm wide, ISO standard

-BN 20 mm wide, NPT

Pneumatic ports -QS all ports with QS push-in fittings (-B-QS)

all ports with QS push-in fittings inch (-BN-QS)

-QO Supply / vacuum port with QS push-in fittings, exhaust port

with open silencer (-B-QO)

Supply / vacuum port with QS push-in fittings inch, exhaust

port with open silencer (-BN-QO)

-GN all ports with female G thread (-B-GN)

all ports with female NPT thread (-BN-GN)

-GO Supply / vacuum port with female G threads, exhaust port

with open silencer (-B-GO)

Supply / vacuum port with female NPT threads, exhaust port

with open silencer (-BN-GO)

-PL prepared for manifold rail, vacuum and exhaust port with QS

push-in fittings (-B-PL)

prepared for manifold rail, vacuum and exhaust port with QS

push-in fittings inch (-B-PL)

-PO prepared for manifold rail, vacuum port with QS push-in

fittings, exhaust port with open silencer (-B-PO)

prepared for manifold rail, vacuum port with QS push-in

fittings inch, exhaust port with open silencer (-BN-PO)

Normal position of the va

cuum generator

-ON NO, normally open (vacuum generation)

-OE NO, normally open (vacuum generation) with ejector pulse

-CN NC, normally closed (no vacuum generation)

-CE NC, normally closed (no vacuum generation) with ejector pulse

Electrical connection -N Plug M12 (5-pin)

OVEM


Characteristic MeaningCode

Vacuum sensor -1PD 1 switching output PNP, 2 switching input PNP, with display

-2P 2 switching outputs PNP

-2N 2 switching outputs NPN

-PU 1 switching output PNP, 1 analogue output 0 … 10 V

-PI 1 switching output PNP, 1 analogue output 4 … 20 mA

-NU 1 switching output NPN, 1 analogue output 0 … 10 V

-NI 1 switching output NPN, 1 analogue output 4 … 20 mA

Alternative vacuum display - bar (-B), InHg (-BN)

-B Bar

-W InH2O

-H InHg

Tab. 1 Overview of variants

2 Security

2.1 Use for intended purpose

The vacuum generator type OVEM is designed for generating a vacuum.

2.2 General safety information

– The product may only be used in its original status without unauthorised modifications.

– Only use the product if it is in an excellent technical status.

– Use the product only inside buildings.

– Take into consideration the ambient conditions at the location of use.

– The product is intended for use in industrial environments. The product can generate high frequency

interference, which may make it necessary to implement interference suppression measures in

residential areas.

– Observe the specifications on the product labelling.

– Comply with all applicable national and international regulations.

– Observe the local specifications for environmentally friendly disposal.

OVEM


2.3 Range of applications and certifications

Note

CE declaration of conformity and certificates�� www.festo.com/sp

In connection with the UL marking on the product, the information of this section is also applicable for

compliance with the certification conditions of Underwriters Laboratories Inc. (UL) for the U.S.A. and

Canada.

UL approval information

Product category code QUYX (USA)

QUYX7 (Canada)

File number E322346

Considered standards UL 61010-1

C22.2 No.61010-1

UL mark

Tab. 2 UL approval information

Only for connection to an NEC/CEC Class 2 supply.

Unit shall be supplied by a power source which complies with the requirements of a limited-energy

circuit in accordance with IEC/EN/UL/CSA 61010-1 or a Limited Power Source (LPS) in accordance with

IEC/EN/UL/CSA 60950-1 or IEC/EN/UL/CSA 62368-1 or a Class 2 circuit in accordance with NEC or

CEC.

OVEM


3 Function and application

3.1 Function overview

The OVEM is a vacuum suction nozzle with digital transmission of setpoint and actual value as well as

diagnostics and parameterisation options. Configuration is carried out via the operating keys. The dia

gnostic messages are shown in the display.

Function OVEM-...-2P/2N

/PU/PI/NU/NI

OVEM-...-1PD

Control of the compressed air supply with 2 valve functions

��Chapter 3.3

x x

Air-saving function �� Chapter 3.4 x x

Electrical and mechanical manual override ��Chapter�6.4 x x

Monitoring of the vacuum build-up through integrated pressure

sensor and advanced monitoring functions ��Chapter 3.6

x x

Auto-Drop Function:

generation of an automatic eject pulse for accelerated vacuum

purging and safe set-down ��Chapter�3.3

x -

Generation of an eject pulse via a control signal at the

digital switching input (ejection) DI2

- x

Tab. 3 Function overview

OVEM


3.2 Switching functions

The switching outputs can be configured via the switching functions.

The switching logic of the switching outputs can be configured as normally open (NO) or normally

closed (NC).

The switching mode of the switching outputs can be determined as threshold value or window compar

ator.

With active air-saving function, the switching mode is determined as the threshold value

comparator by switching output A.

Threshold value comparator Normally open (NO) Normally closed (NC)

Switching function

– 1 Switchpoint (SP1)

Teach mode1):

– 2 Teach-in points (TP1, TP2)

– SP1 = ½ (TP1+TP2)p

1

0

HY

OUT

SP1TP1 TP2

p

1

0SP1

HY

OUT

TP1 TP2

1) TP1 = minimum pressure value, TP2= maximum pressure value, independent of the Teach sequence

Tab. 4 Threshold value comparator: setting of switchpoint SP1 and hysteresis HY

Window comparator Normally open (NO) Normally closed (NC)

Switching function:

– 2 switchpoints

(SP1, SP2)

Teach mode1):

– 2 Teach-in points (TP1, TP2) TP1=SP1

HY HY

p

1

0

OUT

TP2=SP2 TP1=SP2

p

1

0

OUT

HY HY

TP2=SP2

1) TP1 = minimum pressure value, TP2= maximum pressure value, independent of the Teach sequence

Tab. 5 Window comparator: setting of switchpoints SP1, SP2 and hysteresis HY

OVEM


Code Switching output A Switching output B Switching inputs

-1PD Switching output

Positive switching

Pressure sensor output A

– 2 switching inputs

positive switching

-2P Switching output

Positive switching

Pressure sensor output B or

Diagnostic message channel

1 switching input

Positive switching

-PI Analogue output 4 ... 20 mA

Vacuum

-PU Analogue output 0 … 10 V

Vacuum

-2N Switching output

Negative switching

Pressure sensor output A

Switching output

Negative switching

Pressure sensor output B or

Diagnostic message channel

1 switching input

Negative switching

-NI Analogue output 4 ... 20 mA

Vacuum

-NU Analogue output 0 … 10 V

Vacuum

Tab. 6 Switching output and switching input variants

3.3 Valve control

Control of the ejector pulse

– Auto-Drop Function (except OVEM-...-1PD)

The ejector pulse is generated after the signal change “Suction”. The duration of the ejector pulse can

be set ��Chapter 6.1.

– Signal-controlled ejector pulse (only OVEM-...-1PD)

The ejector pulse is generated via a control signal at the digital switching input (ejection) DI2. The eject

or pulse can also be used to blow dust off the workpiece surface. The duration of the ejector pulse can

be set via the duration of the control signal at the digital switching input (ejector) DI2.

OVEM


Depending on the input signal, the vacuum solenoid valve or the ejector pulse solenoid valve is con

trolled.

Valve function OVEM-...-CE Valve function OVEM-...-CE-...-1PD

1

3

4

5

Auto-Drop

tej

1

2

3

4

5

Valve function OVEM-...-OE Valve function OVEM-...-OE-...-1PD

1

3

4

5

Auto-Drop

tej

1

2

3

4

5

1 Control signal at the digital switching input

(suction) DI1

2 Control signal at the digital switching input

(ejection) DI2 (only OVEM-...-1PD)

3 Switching position of vacuum solenoid valve

4 Switching position of ejector pulse solenoid

valve

5 Vacuum connection (2)

tej Duration of ejector pulse

Fig. 2 Valve control switching behaviour

OVEM


3.4 Air-saving function

The air-saving function reduces the air consumption of the vacuum suction nozzle OVEM-...-CE / -OE

during the evacuation phase.

50 mbar(fixed)

12

3

DI1

DO1

4

t

t

t

1 Hysteresis (HY)

2 Threshold value “Switch off suction”

= switchpoint (SP1)

3 Threshold value “Switch on suction”

4 Reset point (RSP1)

Fig. 3 Mode of operation of the air-saving function

If the pressure value has reached the switchpoint SP1 2, vacuum generation is deactivated. An intern

al check valve prevents the reduction of the vacuum. Vacuum can still be reduced slowly due to leakage

in the overall system (e. g. due to rough workpiece surfaces). To reduce energy consumption, vacuum

generation is not switched on until the lower threshold value 3 is fallen below.

The air saving function is activated in the factory.

If air-permeable workpieces are transported, the vacuum is reduced more quickly which would cause

the vacuum generation to switch unnecessarily often. In this case, it makes sense to deactivate the

air-saving function ��Chapter 6.6.

OVEM


3.5 Optimisation of the transport time

For variants with 2 switching outputs (OVEM-...-2P/-2N/-PU/-PI/-NU/-NI), the transport time can be

optimised by using switching output Out B.

The vacuum required for the transport is controlled by switching output Out A. To optimise the trans

port time, the workpiece can e. g. be gripped by the usable vacuum while the vacuum is building up.

The minimum usable vacuum required is controlled by switching output Out B.

3.6 Monitoring and diagnostics

The vacuum suction nozzle has monitoring functions that permit early detection of malfunctions or

errors in ongoing operation.

– Monitoring of process parameters (pressure value at the vacuum connection, switching points,

switching outputs and switching inputs, evacuation time tE, air supply time tB and limit values)

– Diagnostic messages �� Chapter 7.1

– Error detection �� Chapter 7.2

The diagnostic messages are shown in the display.

For variants with 2 switching outputs (OVEM-...-2P/-2N), switching output Out B can also be set as

diagnostic message channel (dI 1 or dI 2) � Chapter 6.2.3.

The monitoring functions are activated at the factory (except for monitoring of the evacuation and air

supply times). The time monitoring can be activated through setting of the limit values for evacuation

time and air supply time ��Chapter 6.3.1.

OVEM


3.7 Measured variables

Pressure value (vacuum)

The pressure value (vacuum) is continuously measured between the vacuum connection and filter.

The minimum and maximum measured pressure values are saved. If the operating voltage of the vacu

um suction nozzle is switched off, the values are lost.

Cycle time

A cycle covers the time from the start of evacuation through ejection to the start of the new evacuation.

Evacuation time and air supply time

The evacuation time tE is measured from the start of evacuation until reaching of the switchpoint SP1 of

the switching output.

The air supply time tB is measured from the start of air supply to the time at which the pressure value

(vacuum) falls below �50 mbar.

Vacuum valve

Cycle time

tE tBTransport time Return time

t

p

DI1

DO1

50 mbar

0

1

2

Ejector pulse valve

1 Switching point SP1

2 Reset point RSP1

tE Evacuation time

tB Air supply time

Fig. 4 Clock cycle – example for Out A (Air-save)

The shown sequence of the switching statuses and control signals applies to all product variants except

OVEM-...-1PD. Sequence for OVEM-...-1PD � Fig. 2

OVEM


3.8 Teach function (Teach-In)

The Teach function permits configuring the switchpoints and time monitoring during run time.

Static Teach-In

Depending on the Teach command, one switchpoint (SP) or 2 switchpoints are determined from 2

teach-in points. The switchpoints are determined statically, that is, the measurement value remains

constant during the entire Teach-In procedure. During execution of the Teach-In procedure, the air save

function is deactivated for the duration of the procedure.

Dynamic Teach-In

Setpoint values are calculated within the Teach-In procedure from a time period. The procedure is used

for determination of evacuation and air supply times � Fig. 5.

After the start of the Teach-In, the time tE and tB is measured at each cycle. With multiple cycle times,

the times are averaged. After the stop of the Teach-In, a function reserve of 100 % is added to the aver

aged values.

Vacuum valve

TeachStart

TeachStoptE1 tB1 tE2 tB2

SP1

p

50 mbar

t

t

1 2

3 4 5

1 Transport time

2 Return time

3 Cycle time 1

4 Cycle time 2

5 Cycle time N

Fig. 5 Mode of operation: dynamic Teach-In - Example OVEM-...-CE

OVEM


4 Installation

4.1 Mechanical

Note

An unfavourable mounting position can impair the function of the product.

� Install the vacuum suction nozzle so that no condensation from the compressed air

lines can gather in the device.

� Install the vacuum suction nozzle so that it cannot be heated above the maximum

permissible operating temperature (plan for convection possibilities).

� Install the vacuum suction nozzle so that the exhaust can flow without hindrance.

Direct mounting

M5 / M4 � Tab. 7

Max. 2.5 Nm

M3

Max. 0.8 Nm

Fig. 6 Direct mounting on the side Fig. 7 Direct mounting on the back

OVEM Mounting screws

OVEM-...-05/ -07/ -10 M5

OVEM-...-14/ -20 M4

Tab. 7 Size of the mounting screws with direct mounting on the side

OVEM


Mounting on H-rail

H-rail mounting accessory � www.festo.com/catalogue

M3

Max. 0.8 Nm

1

� Mount H-rail mounting. � Hang OVEM with H-rail mounting in the H-rail

and press in the direction of the arrow.

� Secure with screw 1 to the H-rail.

Fig. 8 H-rail mounting

Mounting via mounting bracket

Accessories for mounting bracket � www.festo.com/catalogue

M5 / M4 � Tab. 7

Max. 2.5 Nm

Fig. 9 Mounting with mounting bracket

Mounting on supply manifold

Mounting is possible on a supply manifold with a maximum of 8 places (assembly instructions OABM-P

� www.festo.com/sp).

OVEM


4.2 Pneumatic

OVEM-... Circuit symbol OVEM-... Circuit symbol

OVEM-...-QO-CN

OVEM-...-GO-CN

OVEM-...-QO-CE

OVEM-...-GO-CE

OVEM-...-QS-CN

OVEM-...-GN-CN

OVEM-...-QS-CE

OVEM-...-GN-CE

OVEM-...-QO-ON

OVEM-...-GO-ON

OVEM-...-QO-OE

OVEM-...-GO-OE

OVEM-...-QS-ON

OVEM-...-GN-ON

OVEM-...-QS-OE

OVEM-...-GN-OE

Tab. 8 Circuit symbols, pneumatic

OVEM-... -05-...-GN

-05-...-GO

-07-...-GN

-07-...-GO

-10-...-GN

-10-...-GO

-14-...-GN

-14-...-GO

-20-...-GN

-20-...-GO

Tubing length [m] < 0.5 < 2 < 0.5 < 2 < 0.5 < 2 < 0.5 < 2 < 0.5 < 2

Min. internal diameter of tubing

– Supply port [mm] 1 2 1.5 2 2 3 3 4 4 5

– Vacuum port [mm] 2 3 3 4 4 5 5.5 6 6 7

– Exhaust port [mm] 2 3 3 4 4 5 5.5 6 6 7

Tab. 9 Minimum inside diameter of the connection tubes for connections with G-female thread

OVEM


Notes on the pneumatic connection

– Maximum admissible hose length 2 m

– OVEM-...-GN/GO: Pay attention to the minimum inside diameter of the connection tubes � Tab. 9.

– Do not seal exhaust port.

– OVEM-...-07/-10/-14/-20: If necessary, lengthen silencers with a silencer extension (accessories

� www.festo.com/catalogue)

– Recommendation: Use tubes of type PUN � www.festo.com/catalogue.

4.3 Electric

Warning

Electric voltage

Injury caused by electric shock, damage to machine and to system

� For the electrical power supply, use only PELV circuits in accordance with

IEC 60204-1/EN 60204-1.

� Use only voltage sources that ensure a reliable electric separation from the mains

network in accordance with IEC 60204-1/EN 60204-1.

� Observe the requirements of IEC 60204-1/EN 60204-1 for PELV circuits.

� Connect the vacuum suction nozzle to the electrical connection.

– 5-pin plug, M12x1

– Maximum tightening torque plug connector M12: 0.5 Nm

– Maximum permissible cable length: 20 m

OVEM


Plug connector Pin Wire colour1) Function

5

2

3

4

1M 12x1 1 Brown (BN) L+ + 24 V

2 White (WH) DO2 digital output Out B

3 Blue (BU) L– 0 V

4 black (BK) DO1 digital output Out A/Out A (Air-save)

5 Grey (GY) DI1 digital switching input (suction)2)

1) If the connection line from the accessories is used � www.festo.com/catalogue

2) At the falling edge of the “Suction” control signal, the workpiece is set down.

Tab. 10 Pin assignment OVEM-...-2P/-2N


5

2

3

4

1M 12x1 1 Brown (BN) L+ + 24 V

2 White (WH) AO1 Analog output Out B


4 black (BK) DO1 digital output Out A/Out A (Air-save)

5 Grey (GY) DI1 digital switching input (suction)2)


2) At the falling edge of the “Suction” control signal, the workpiece is set down.

Tab. 11 Pin assignment OVEM-...-PU/-PI/-NU/-NI


5

2

3

4

1M 12x1 1 Brown (BN) L+ + 24 V

2 White (WH) DO1 digital output Out A/Out A (Air-save) (PNP)


4 black (BK) DI2 digital switching input (ejection) (PNP)

5 Grey (GY) DI1 digital switching input (suction) (PNP)


Tab. 12 Pin assignment OVEM-...-1PD

OVEM


Circuit diagrams

OVEM-...-2P OVEM-...-2N

OVEM-...-PU OVEM-...-NU

OVEM-...-PI OVEM-...-NI

OVEM-...-1PD

Tab. 13 Circuit diagrams for vacuum suction nozzle

OVEM


5 Commissioning

Note

Commissioning should only be carried out by qualified personnel.

5.1 Commissioning vacuum suction nozzle

At initial commissioning, the vacuum suction nozzle is placed in operation with the factory settings

� Tab. 14.

Requirements

– Vacuum suction nozzle is fully mounted and connected ��Chapter 4.

Check operating conditions

� Check the operating conditions and limit values ��Technical data.

Place vacuum suction nozzle OVEM-...-OE in operation

1. Apply operating pressure to compressed air supply port (1).

� Low pressure is generated at the vacuum connection (2).

2. Switch on the operating voltage.

� The current pressure value is displayed.

� The vacuum suction nozzle is ready for operation.

Place vacuum suction nozzle OVEM-...-CE in operation

1. Apply operating pressure to compressed air supply port (1).


3. Activate suction: apply input signal to pin 5.


� The current pressure value is displayed.

� The vacuum suction nozzle is ready for operation.

Changing of the operating pressure changes the strength of the low pressure at the vacuum connec

tion. As a result, the vacuum can be set at the suction gripper.

Functions and parameters can be determined:

– manually at the device ��Chapter 11.2.4

– by Teach-In ��Chapter 11.2.5

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5.2 Set the intensity of the ejector pulse

Requirements

– Vacuum suction nozzle is in operation.

Fig. 10 Screw in flow control screw

1. Completely screw in the flow control screw.

� The channel for the ejector pulse is closed. No ejector pulse is generated.

2. Switch on vacuum generation.


3. Switch off vacuum generation.

4. Unscrew flow control screw slightly.

� An automatic ejector pulse is generated.

If no automatic ejector pulse is generated, operate the mechanical manual override of the eject

or pulse solenoid valve.

5. Screw out or in the flow control screw until the required intensity of the ejector pulse is set.

Setting the ejector pulse duration ��Chapter 6.1.

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6 Operation

Additional information on operating statuses and menu structure ��Chapter 11.2

6.1 Setting the ejector pulse duration

Prerequisites

– RUN mode is active.

– Security code is not active.

1. Press the EDIT button.

� [A] flashes.

� EDIT mode is active.

2. Press B-key.

� [B] + segment L18 flash.

3. Press EDIT button.

� [msec], [_|¯] and [¯|_] flash.

4. Set time (in ms) via the A button and the B button.

To deactivate the ejector pulse, set to OFF.

5. Keep EDIT button pressed for 3 seconds.

� RUN mode is active.

Note

When large suction grippers are used, a vacuum independent of the device can be built

up for physical reasons. This might mean that the workpiece does not detach from the

suction gripper, even if the ejector pulse is set to a sufficiently long duration.

OVEM


6.2 Configure the switching outputs

6.2.1 Display switching output settings

The process for displaying the settings of the switching outputs Out A (A-button) and

Out B (B-button) is fundamentally the same. In addition, the configuration of the switch

ing output and the duration of the ejector pulse is displayed for switching output Out B.

In the following, the process is described using the switching output Out A.

Prerequisite:


1. Press the A key.

� SHOW mode is active.

� If there are errors, the error numbers are indicated.

2. Press the A key.

� The following settings will be displayed:

– switching function (threshold value or window comparator)

– Switching points [SP] or [SP] [min].

– switching characteristic [NO/NC]

3. Press the A key.

� Only with Window comparator switching function: switching point [SP], [max] is displayed.

– Press A-key.

� Hysteresis [HY] is displayed.

4. Press the A key.

� Minimum pressure value is displayed.

5. Press the A key.

� Maximum pressure value is displayed.

6. Press the A key.


6.2.2 Setting the switching characteristics of a switching output

The process for setting the switch outputs Out A (A-button) and Out B (B-button) is funda

mentally the same. Additionally, the switching output IN A1 must be selected for Out B,

since Out B can also be configured as a diagnostic message output.

� Chapter 6.2.3.

In the following, the process is described using the switching output Out B.

Prerequisites:


– Switching output Out B is defined as switching output In A1.


OVEM



� [A] flashes.


2. Press B-key.

� [B] flashes.


� Display <InA1>


� The currently set switching function flashes (threshold value or window comparator).

5. Set switching function using the A or B key.


� [SP] flashes (threshold value comparator) or [SP], [min] flashes (window comparator).

7. Set switching point (SP or SPmin) using the A key or B key.


� Only with switching function window comparator: [SP], [max] flashes.

– Set switching point (SPmax) using the A key or B key.

– Press EDIT button.

� [HY] flashes.

9. Set hysteresis [HY] using the A key or B key.

10.Press EDIT button.

� [NO] or [NC] flashes.

11.Set the switching characteristic [NO/NC] using the A key or B key.

12.Press EDIT button.


6.2.3 Set diagnostic message channel

If the switching output Out B is set as diagnostic message channel (dl 1 or dl 2), the

switching output Out B can no longer be used as switching output In A1.

Prerequisites:




� [A] flashes.


2. Press B-key.

� [B] flashes.


� If Out B is defined as switching output, <InA1> is displayed.

4. Set the diagnostic message channel (dI 1 or dI 2) using the A key or B key.


� [NO] or [NC] flashes.

6. Set the switching characteristic [NO/NC] using the A key or B key.

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6.2.4 Teaching of switching points

During teaching, the air saving function is automatically deactivated.

If the pressure differential between the teach points is two little, teaching does not work.

The process is the same for teaching the switching outputs Out A (A button) and Out B (B

button). In the following, the process is described using the switching output Out A.

Prerequisites:


– Switching function is set.


1. Set the vacuum for the first teach point.

Object gripped or object not gripped – the sequence is freely selectable.

2. Press the A key and the EDIT button simultaneously.

� Teach mode is active.

� Air saving function is deactivated.

� The measured value is taken over as the first teach point (TP1).

� [A] and [TeachIn] flash.

3. Set the vacuum for the second teach point (TP2).

4. Press the A key and the EDIT button simultaneously.

� The measured value is taken over as the second teach point (TP2).

� Switching points (SP or SPmin and SPmax) become applicable.

� The air saving function is activated.


Note

The hysteresis is adjusted to the taught values.

Setting the hysteresis (��Chapter 6.3).

Recommendation: check the taught values in a test run.

6.2.5 Deleting the minimum or maximum pressure value

Prerequisite:


1. Press the A key.


� If there are errors, the error numbers are indicated.

2. Repeatedly press the A key until the minimum pressure value is displayed.

3. To see the following value, press the A key.

OVEM


To delete the minimum pressure value, press the EDIT button.

� The minimum pressure value is deleted.

4. Press the A key.

� Maximum pressure value is displayed.

5. To return to RUN mode, press the A key.

To delete the maximum pressure value, press theEDIT button.

� The maximum pressure value is deleted.

6. Press the A key.


6.3 Configuring the evacuation and air supply times

6.3.1 Setting the limit values for the evacuation and air supply times

Prerequisites:

– EDIT mode is active, [Out A] flashes.


1. Press the A key.

� Display <SPEC>


� [Option] flashes.


� [Lock] flashes.


� [msec], [SP], [max] and [_|¯] flash.

5. Set the maximum evacuation time using the A key and B key.

[OFF]: monitoring of the evacuation time is not active.


� [msec], [SP], [max] and [¯|_] flash.

7. Set the maximum air supply time using the A key and B key.

[OFF]: monitoring of the air supply time is not active.



6.3.2 Teaching the evacuation and air supply time

Prerequisites:



– Switching function is set.

1. Press the A key, B key and the EDIT button simultaneously.

� TEACH mode is active.

� [TeachIn] and the diagnostics segments flash.

2. Measure at least one clock cycle.

OVEM


The mean value of the measured cycles is calculated.

The more cycles are run, the better is the value.

The taught values are applied with a function reserve of 100 �%.

3. Press A key, B key and EDIT button.


If the switching points or the intensity of the ejector pulse are changed,

teach the evacuation and air supply times again.

Recommendation: check the taught values in a test run.

6.3.3 Displaying the evacuation and air supply times

Prerequisite:


1. Press the A key and B key simultaneously.


� evacuation time limit value is displayed.


� air supply time limit value is displayed.


� The minimum evacuation time is displayed.


� The maximum evacuation time is displayed.


� The minimum air supply time is displayed.


� The maximum air supply time is displayed.



6.3.4 Deleting the evacuation and air supply times

Prerequisites:

– SHOW mode is active.

– The minimum evacuation time is displayed.

1. To see the following value, press the A key and B key simultaneously.

To delete the displayed value, press the EDIT button.



OVEM


6.4 Operating manual override

Both solenoid valves can be manually switched with the manual override.

6.4.1 Mechanical manual override

1. Press in the stem of the manual override with a blunt pin.

� The solenoid valve switches.

2. Remove the pin.

� The stem of the manual override automatically returns. The

solenoid valve reverts to the basic position.

Fig. 11 Mechanical

manual override

6.4.2 Electrical manual override

Prerequisites:




� [A] flashes.


2. Press B-key.

� [B] flashes + segment L18 is illuminated.


� [msec], [_|¯] and [¯|_] flash. The duration of the ejector pulse is displayed.


� Display <FORC>. The electrical manual override is active.

5. Switching the solenoid valves.

– Vacuum solenoid valve: press A key.

– Ejector pulse solenoid valve: Press B key.

6. To exit the submenu, press the EDIT button.


OVEM


6.5 Activating security code

A security code can be established and activated to prevent changes by unauthorised persons.

– Factory setting: “OFF”

– The security code is reset when factory settings are restored.

Prerequisites:




� [A] flashes.


2. Press the A key.

� Display <SPEC>




� [Lock] flashes.

5. Set the security code using the A key and B key.

[OFF]: security code is not active.



6.6 Switching the air saving function on or off

Prerequisites:

– EDIT mode is active, [Out A] flashes.


1. Press the A key.

� Display <SPEC>



3. Switch the air saving function on or off using the A key or B key.

– [ON]: Air saving function active.

– [OFF]: Air-saving function not active.



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6.7 Restore factory settings

Through resetting of the factory settings, the parameters, configuration and security code are reset to

the condition at shipment � Tab. 14.

The current settings are lost.

1. Switch off the operating voltage.

2. Simultaneously press and hold down A key + B key + EDIT button.


� Display <CLEA>

4. Release the A key + B key + EDIT button.

� The factory settings are restored.

Factory settings

Parameter OVEM-...-H OVEM-...-L

Switching mode of the electrical output Threshold value comparator

Switching logic of the electrical output NO (Normally Open)

Air-saving function Active

Security code Off

Out A (Air-save) SP1 [bar] –0.7 –0.4

Hysteresis [bar] 0.25

Out A SP1 [bar] –0.7 –0.4

SP2 [bar] –0.97 –0.67

Hysteresis [bar] 0.25 0.1

Out B1) SP1 [bar] –0.5 –0.2

SP2 [bar] –0.71 –0.41

Hysteresis [bar] 0.2 0.1

Duration of ejector pulse1) [ms] 200

1) Parameters not available for OVEM-...-1PD

Tab. 14 Factory settings

OVEM


7 Error messages and fault clearance

The diagnostic messages are shown as error code on the display.

For variants with 2 switching outputs (OVEM-...-2P/-2N), one of the two logic channels of switching

output Out B can in addition be set as a diagnostic message channel ��Chapter�6.2.3.

The diagnostic message channel can be configured as normally open (NO) or normally closed (NC).

7.1 Diagnostic levels

There are 4 diagnostic levels. The red background illumination of the display lights up for messages of

the diagnostic levels 1 to 3.

Diagnostic

level

Diagnostic message

channel

Description

0 No message Device is OK.

1 logical channel dI 1 is

active

no restriction in function yet but operating parameters are

worsening

2 logical channel dI 1 or

dI 2 is active

Function still ensured, but with restrictions (e.g. higher power

consumption).

Emergency operation, maintenance urgently required.

3 logical channel dI 1 or

dI 2 is active

Function is no longer assured.

All controllable outputs of the device are inactive.

Tab. 15 Diagnostic levels for switching output Out B and display

If the evacuation and air supply time is to be monitored, set the limit values for the evacuation and air

supply time ��Chap.�6.6.

OVEM


7.2 Error messages and error codes

Display Diagnostic

level

Description Remedy

Er01 3 Hardware errors in the device � Replace device.

Er17 3 Supply voltage is too high or too low

(error)

� Check the power supply.

Er20 2 permissible device temperature

exceeded

� Keep device away from heat

sources.

Er21 2 Short-circuit Out A � Check output for overload.

� Check installation.

Er32 2 OVEM-...-1PD:

Vacuum solenoid valve does not

switch or does not switch correctly

� Press mechanical manual override

several times.


� Replace device.

Er33 2 except OVEM-...-1PD:

Solenoid valve does not switch or

does not switch correctly.

Plunger does not move,

current through solenoid coil is too

low, short circuit in solenoid coil

� Press mechanical manual override

several times.


� Replace device.

OVEM-...-1PD:

Ejector pulse solenoid valve does not

switch or does not switch correctly

Er34 1 Evacuation time exceeded in 2 of 5

cycles

� Check for leakage.

Er35 2 Evacuation time exceeded by a factor

of two in 2 of 5 cycles

Er36 1 Air supply time exceeded in 2 of 5

cycles


� Extend air supply time.

� Check throttle setting.Er37 2 Air supply time exceeded by a factor

of two in 2 of 5 cycles

Er38 2 Switching frequency of the air saving

function > 1 Hz (warning)


Er39 2 SP1 for Out A not reached after 10 �s � Check for leakage.

� Check compressed air supply.

Switch-back threshold fallen below

(active air saving function and

threshold value comparator)

� Check trigger levels.

� Check settings for Out A.

� Check compressed air supply.

upper trigger level exceeded or lower

trigger level fallen below (window

comparator)

OVEM


Display RemedyDescriptionDiagnostic

level

Er40 2 Supply voltage too high (warning) � Check the power supply.

Er41 2 Supply voltage too low (warning)

Tab. 16 Error messages, error codes, diagnostic levels and error description

OVEM


7.3 Malfunctions

Malfunction Possible cause Remedy

Workpiece does not detach

from the suction gripper

device-independent vacuum

between workpiece and suction

gripper, ejector pulse not activ

ated or sufficiently dimensioned

� Activate ejector pulse when

lifting the suction gripper.

� Increase the duration and

intensity of the ejector pulse.

Tubing dimensioned incorrectly � Replace tubing (tubing dimen

sions ��Chap.�4.2).

Flow control screw closed � Open the flow control screw.

Switching output does not

react in accordance with

the settings

Short circuit or overload at the

output

� Eliminate short circuit or

overload.

Device defective � Replace device.

No display Operating voltage faulty � Apply permissible operating

voltage ��Chap.�4.3.

electrical connections swapped � Connect device correctly

��Chap. 4.3.

Device defective � Replace device.

Incomplete display Display defective � Replace device.

Pressure indicator incorrect pneumatic connections swapped � Connect device correctly

��Chap. 4.2.

Settings cannot be edited,

[Lock] is displayed

Security code active � Enter security code

��Chap. 6.5.

[min] + [max] flashing at the

same time

Diagnostic level 1 active � ��Chap.�7.1

Display + [min] + [max] flash

simultaneously


Display flashes and error

code appears


[Option] flashes Air-save function deactivated be

cause outside the limit value


Tab. 17 Malfunctions

OVEM


8 Disassembly

1. Switch off energy sources:

– operating voltage

– compressed air

2. Disconnect pneumatic and electrical connections from the device.

3. Loosen mountings and remove device.

9 Maintenance and care

Clean device

1. Switch off energy sources:

– operating voltage

– compressed air

2. Clean device with non-abrasive cleaning agents.

3. Check air filter through the inspection window for dirt.

Replace air filter

1

2

Fig. 12 Remove / install air filter

1. Vent the vacuum suction nozzle.

2. Carefully pull out the slide 1 up to the first detent. The slide must stay in this position on the filter.

3. Pull out filter 2. Clean, if necessary.

4. Push filter into the housing.

5. Push in slide.

� The filter is pushed by the slide into the vacuum suction nozzle.

OVEM


10 Technical data

OVEM-... -05 -07 / -10 -14 / -20

General

Certification certificate c UL us listed (OL)

RCM

CE mark

(� www.festo.com/sp declaration of conformity)

In accordance with EU EMC Directive

Characteristic values

Operating pressure OVEM-...-QS / -GN / -PL [bar] 2…6

Operating pressure OVEM-...-QO / -GO / -PO [bar] 2…8

Pressure measuring range [bar] –1…0

Overload pressure at vacuum port [bar] 5

Ready-state delay [ms] 500

Dead time (evacuation and ejection) [ms] 10 20 35

Electronics

Nominal operating voltage [V DC] 24 ± 15 %

Max. output current (per switching output) [mA] 100

Voltage drop (for all switching outputs) [V] 1.5

Idle current [mA] 70

Coil characteristics, 24 V DC - low current phase [W] 0.3

Coil characteristics, 24 V DC - high current phase [W] 2.55

Time until current reduction [ms] 80

Capacitive load maximum DC [nF] 100

Overload protection Provided

Inductive protective circuit Adapted to MZ, MY, ME coils

Insulation voltage [V] 50

Surge resistance [kV] 0.8

Max. current consumption

OVEM-...-2P/-2N [mA] 270

OVEM-...-PI/-PU/-NI/-NU [mA] 180

OVEM-...-1PD [mA] 165

Accuracy [% FS] ± 3

Hysteresis [% FS] ± 0.1

Short-circuit resistance Provided

Protection against polarity reversal For all electrical connections

Display/operation

Threshold value setting range [bar] –0.999…0

Hysteresis setting range [bar] –0.9…0

Setting range duration, ejector pulse [ms] 20…9999 40…9999

OVEM


OVEM-... -14 / -20-07 / -10-05

Environment

Ambient temperature [°C] 0…50

Temperature of medium [°C] 0…50

Degree of contamination 3

Operating medium Compressed air to ISO 8573-1:2010

[7:4:4]

Note on the operating medium Lubricated operation not possible

Note on materials RoHS-compliant

Resistance to shock (in accordance with

IEC 60068 /EN60068)

30 g acceleration with 11 ms duration

(half-sine)

Vibration resistance (in accordance with EN 60068-2) 10…60 Hz: 0.35 mm / 60…150 Hz: 5 g

Protection class III

Degree of protection IP 65

Relative air humidity [%] 5…85

Interference emission In accordance with EN 61000-6-4

Interference immunity to EN 61000-6-2

Maximum permissible signal line length [m] 20

Materials

Information on materials - seals NBR

Information on materials - housing Die-cast aluminium, PA reinforced

Information on materials - plug housing housing Nickel-plated brass

Tab. 18 Technical data

OVEM


11 Appendix

11.1 Graphic display and LCD displays

4

5

6

7

9

aJ

1 2 3

8

1 Display segment switching output Out A

2 Display segment of switching output Out B

(except OVEM-...-1PD)

3 Display segment of switching input In A1

(except OVEM-...-1PD)

4 4-digit alphanumeric display

5 Toolbar for functions � Tab. 19

6 Segment bar to the right: graphic display of

the current status of the digital inputs or

valve status � Tab. 19

7 B-key

8 A-key

9 EDIT button

aJ Segment bar to the left: graphic display of

the current pressure value related to the

maximum measured value of the measuring

range

Fig. 13 LCD display and operating keys

OVEM


Symbol Description

Threshold value comparator selected

[SP] Switching point

Window comparator selected

[SP] + [min] Lower switching point

[SP] + [max] Upper switching point

[HY] Hysteresis

[NO] / [NC] Switching logic normally open (Normally open) / normally closed (Normally

closed)

[TeachIn] Teach function (Teach-In) active

[Option] Air-saving function active

[Lock] Security code active

L10

L12

L1 L2

L18

L16

L3

Segments display the following:

– current status of the digital inputs

– current valve status

� Tab. 20 and Tab. 21

Tab. 19 Symbolism in display

OVEM


Advertisement Description

Segment L10 is illuminated Vacuum solenoid valve is switched.

Segment L14 is illuminated Ejector pulse solenoid valve is switched.

Segment L17 + [A] are illuminated and

[min] flashes

Minimum pressure value display


[max] flashes

Maximum pressure value display

Segment L18 + [B] illuminated and

[msec] + [_|¯¯|_] flash

Duration of ejector pulse

Segments L1, L3, L4, L5 illuminated and Diagnostics of evacuation and air supply times

[msec] + [_|¯] + [min] flash Display of minimum evacuation time

[msec] + [_|¯] + [max] flash Display of minimum evacuation time

[msec] + [¯|_] + [min] flash Display of minimum air supply time

[msec] + [¯|_] + [max] flash Display of maximum air supply time

[msec] + [_|¯] + [SP] + [max] flash Display/Setting of evacuation time limit value

[msec] + [¯|_] + [SP] + [max] flash Display/setting the air supply time limit value

Segments L1, L2, L5, L6 are illuminated

and display <ON> + [Option] flashes

Setting of air-saving function (EDIT mode)

<ON>: Air-saving function active

<OFF>: Air-saving function not active

Segments L1, L2, L5, L6 illuminated and

[Lock] flashing

Setting the security code (1…9999)

<OFF>: security code is not active

Segment L10 + [B] are illuminated +

display <FORC>

additional function of the electrical manual over

ride via operating buttons

Vacuum solenoid valve switched


display <FORC>

additional function of the electrical manual

override via operating buttons

Ejector pulse solenoid valve (Eject) switched

Tab. 20 OVEM-...-2P/-2N/-PU/-PI/-NU/-NI: additional displays of segment bars – Examples

OVEM


Advertisement Description

Segment L10 is illuminated Vacuum solenoid valve is switched.

Segment L12 is illuminated Ejector pulse solenoid valve is switched.

Segment L16 is illuminated digital switching input DI 1 (suction) is set.

Segment L18 is illuminated digital switching input DI2 (ejection) is set.


[min] flashes

Minimum pressure value display


[max] flashes

Maximum pressure value display

Segments L1, L3, L4, L5 illuminated and Diagnostics of evacuation and air supply times

[msec] + [_|¯] + [min] flash Display of minimum evacuation time

[msec] + [_|¯] + [max] flash Display of minimum evacuation time

[msec] + [¯|_] + [min] flash Display of minimum air supply time

[msec] + [¯|_] + [max] flash Display of maximum air supply time

[msec] + [_|¯] + [SP] + [max] flash Display/Setting of evacuation time limit value

[msec] + [¯|_] + [SP] + [max] flash Display/setting the air supply time limit value

Segments L1, L2, L5, L6 are illuminated

and display <ON> + [Option] flashes

Setting of air-saving function (EDIT mode)

<ON>: Air-saving function active

<OFF>: Air-saving function not active

Segments L1, L2, L5, L6 illuminated and

[Lock] flashing

Setting the security code (1…9999)

<OFF>: security code is not active


display <FORC>





display <FORC>



Ejector pulse solenoid valve (Eject) switched

Tab. 21 OVEM-...-1PD: additional displays of segment bars – Examples

OVEM


11.2 Operating statuses and menu structure

11.2.1 Meaning of symbols for representing the menu structure

Symbol Significance

automatic return to the RUN mode when the monitoring time has expired

(here 80 seconds)

Press EDITbutton for 3 seconds: manual return to the RUN mode

Symbol on the display flashes (here display segment switching output Out A)

/ Input blocked / not blocked

press individual key (here A key)

Press A-key or B-key, set value

Press keys simultaneously (here: B key and EDIT button)

Press EDIT button

Branch

Error display

Reset values

Cycle


Ejector pulse solenoid valve switched

Teach point is taken over

Special menu (SPEC) is active (Setting of the air saving function, security code,

max. evacuation and max. air supply time)

Tab. 22 Meaning of symbols for representing the menu structure

11.2.2 RUN mode

– Basic status after the operating voltage is switched on

– Display of the current measured value (relative pressure)

– Display of the signal statuses of the solenoid valves

– Display of the selected inputs and outputs

OVEM


11.2.3 SHOW mode

– Display of the current settings

– Display and deletion of the minimum and maximum pressure values

– Display and deletion of the minimum and maximum evacuation and air supply time

– Display of diagnostic messages

1

1 Submenu only available for OVEM-...-2P/-2N/-PU/-PI/-NU/-NI

Fig. 14 Menu structure SHOW mode

OVEM


11.2.4 EDIT mode

– Setting of parameters

– Operation of the electrical manual override (FORC)

1

1

1 Submenu only available for OVEM-...-CE / -OE

Fig. 15 Menu structure EDIT mode

OVEM


11.2.5 Teach mode

– Acceptance of the current measured value to determine switchpoints

1

1 Submenu only available for OVEM-...-2P/-2N

Fig. 16 Menu structure for Teach mode

Reproduction, distribution or sale of this document or communication of its contents to others without express authorization isprohibited. Offenders will be liable for damages. All rights reserved in the event that a patent, utility model or design patent isregistered.

Copyright:Festo AG & Co. KGPostfach73726 EsslingenGermany

Phone:+49 711 347-0

Fax:+49 711 347-2144

E-mail:[email protected]

Internet:www.festo.com

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