Festo OVEM Series Instructions & Operating
OVEM
Vacuum generator
Instructions| Operating
8109413
8109413
2019-03g
[8109415]
Translation of the original instructions
2 Festo — OVEM — 2019-03g
Table of contents
1 About this document................................................................................................... 5
1.1 Applicable documents.................................................................................................. 5
2 Safety........................................................................................................................... 5
2.1 Safety instructions........................................................................................................ 5
2.2 Intended use................................................................................................................ 5
2.3 UL certification............................................................................................................. 5
3 Further information..................................................................................................... 6
4 Service..........................................................................................................................6
5 Product overview......................................................................................................... 7
5.1 Product design............................................................................................................. 7
5.1.1 Product variants......................................................................................................8
5.1.2 Display components............................................................................................... 10
5.2 Function....................................................................................................................... 14
5.2.1 Switching functions................................................................................................ 14
5.2.2 Valve controller.......................................................................................................16
5.2.3 Air saving function.................................................................................................. 17
5.2.4 Optimisation of the transport time..........................................................................18
5.2.5 Monitoring and diagnostics.................................................................................... 18
5.2.6 Measured variables................................................................................................ 19
5.2.7 Teach function (teach-in)........................................................................................ 20
5.2.8 Operating statuses and menu structure..................................................................21
6 Assembly..................................................................................................................... 25
7 Installation.................................................................................................................. 28
7.1 Pneumatic installation.................................................................................................. 28
7.2 Electrical installation.................................................................................................... 29
8 Commissioning............................................................................................................ 31
8.1 Commissioning vacuum generator............................................................................... 31
8.2 Set the intensity of the ejector pulse............................................................................ 31
9 Operation and use....................................................................................................... 32
9.1 Setting the ejector pulse duration................................................................................ 32
9.2 Configuring switching outputs...................................................................................... 33
9.3 Setting the switching characteristics of a switching output........................................... 33
9.4 Set diagnostic message channel.................................................................................. 34
9.5 Teach-in switching points............................................................................................. 35
9.6 Deleting minimum or maximum pressure value............................................................ 35
9.7 Setting critical limits for the evacuation and air supply times........................................36
9.8 Teaching evacuation and air supply time...................................................................... 36
9.9 Displaying evacuation and air supply times.................................................................. 37
9.10 Deleting evacuation and air supply times..................................................................... 37
9.11 Electrical manual override............................................................................................ 38
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9.12 Mechanical manual override..........................................................................................38
9.13 Activating security code.................................................................................................39
9.14 Switching air saving function on or off...........................................................................39
9.15 Restore factory settings.................................................................................................40
10 Maintenance and care.................................................................................................. 40
11 Error messages and fault clearance............................................................................. 41
11.1 Diagnostic levels........................................................................................................... 41
11.2 Error messages and error codes.................................................................................... 42
11.3 Malfunctions..................................................................................................................43
12 Disassembly.................................................................................................................45
13 Disposal........................................................................................................................45
14 Technical data.............................................................................................................. 45
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About this document
1 About this document
1.1 Applicable documents
All available documents for the product èwww.festo.com/pk.
Document Product Contents
Instruction manual Manifold rail OABM-P Assembly
Tab. 1 Applicable documents
2 Safety
2.1 Safety instructions
– The product may only be used in its original status without unauthorised modifications.
– Only use the product if it is in perfect technical condition.
– 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. This product can generate high fre-
quency malfunctions, which may make it necessary to implement interference suppression meas-
ures in residential areas.
– Observe the specifications on the product labelling.
– Comply with all applicable national and international regulations.
– Observe the local regulations for environmentally friendly disposal.
2.2 Intended use
The intended use of the product is to generate a vacuum.
2.3 UL certification
In combination with the UL inspection mark on the product, the information in this section must also
be observed in order to comply with the certification conditions of Underwriters Laboratories Inc. (UL)
for USA and Canada.
UL approval information
Product category code QUYX (USA)
QUYX7 (Canada)
File number E322346
Standards taken into account UL 61010-1
C22.2 No. 61010-1
UL symbol
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Further information
The unit shall be supplied by a power source which fulfils the requirements on a limited-energy circuit
in accordance to IEC/EN/UL/CSA 61010-1 or on a Limited Power Source (LPS) in accordance to
IEC/EN/UL/CSA 60950-1 or IEC/EN/UL/CSA 62368-1 or a Class 2 circuit in accordance to NEC or CEC.
3 Further information
– Accessories èwww.festo.com/catalogue.
– Spare parts èwww.festo.com/spareparts.
4 Service
Contact your regional Festo contact person if you have technical questions èwww.festo.com.
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Product overview
5 Product overview
5.1 Product design
1
Solenoid valve ejector pulse (eject)
2
Vacuum solenoid valve
3
Mechanical manual override of the solenoid
valves
4
Compressed air connection (1)
5
Exhaust port / silencer (3)
6
Vacuum connection (6)
7
Housing with mounting holes
Fig. 1 Operating elements and connections
Filter housing with display window only with OVEM-...-B/-BN
8
Slide for changing the filter
9
Filter housing with display window
10
Flow control screw for adjusting the ejector
pulse
11
Vacuum sensor with LCD display and operating keys
12
Electrical connection
13
Size OVEM-...-C
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Product overview
5.1.1 Product variants
Product variant Code Meaning
Vacuum generator OVEM Vacuum generator with vacuum solenoid valve ON/OFF
and electric manual override
Nominal width laval nozzle
-05 0.45mm
-07 0.7mm
-10 0.95mm
-14 1.4mm
-20 2.0mm
-30 3.0mm
-H high negative pressureVacuum type
-L high suction volume
Housing size / width
-B 20 mm wide, ISO standard
-BN 20 mm wide, NPT
-C 36 mm wide, ISO standard
Pneumatic connections
all ports with QS push-in fittings (-B-QS/-C-QS)-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/-C-QO)
Supply / vacuum port with QS push-in fittings inch,
exhaust port with open silencer (-BN-QO)
all ports with G female thread (-B-GN/-C-GN)-GN
all ports with NPT female thread (-BN-GN)
-GO
Supply / vacuum port with G female thread, exhaust port
with open silencer (-B-GO/-C-GO)
Supply / vacuum port with NPT female thread, exhaust
port with open silencer (-BN-GO)
-PL
prepared for common supply manifold, vacuum and
exhaust port with QS push-in fittings (-B-PL/-C-PL)
prepared for common supply manifold, vacuum and
exhaust port with QS push-in fittings inch (-BN-PL)
-PO prepared for common supply manifold, vacuum port
with QS push-in fittings, exhaust port with open silencer
(-B-PO/-C-PO)
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Product overview
Product variant Code Meaning
Pneumatic connections -PO prepared for common supply manifold, vacuum port
with QS push-in fittings inch, exhaust port with open
silencer (-BN-PO)
Normal position of the
vacuum 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 M12 plug (5-pin)
Vacuum sensor
-1PD 1 switching output PNP, 2 switching inputs PNP, with
display
-2P 2 switching outputs PNP
-2N 2 switching outputs NPN
-PU 1 switching output PNP, 1 analogue output 0…10V
-PI 1 switching output PNP, 1 analogue output 4…20mA
Alternative vacuum display
- bar (-B), InHg (-BN)
-B bar
-W InH20
-H InHg
Tab. 3 Overview of variants
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Product overview
5.1.2 Display components
1
Display segment switching output Out A
2
Display segment switching output Out B
(except OVEM-...-1PD)
3
Display segment switching input In A1
(except OVEM-...-1PD)
4
4-digit alphanumeric display
5
Toolbar for functions
6
Segment bar right: graphic display of the
current status of the digital inputs or valve
status
7
B pushbutton
8
A pushbutton
9
EDIT button
10
Segment bar left: graphic display of the current pressure value related to the maximum
measured value of the measuring range
Fig. 2 LCD display and operating keys
Symbol Description
Threshold value comparator selected
"[SP]" Switching point
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Product overview
Symbol Description
Window comparator selected
"[SP]" + "[min]" lower switching point
"[SP]" + "[max]" upper switching point
"[HY]" Hysteresis
"[NO]"/"[NC]" Switching logic NO contact (normally open) / NC contact (normally closed)
"[TeachIn]" Teach function (teach-in) active
"[Option]" Air-saving function active
"[Lock]" Security code active
Segments display the following:
– current status of the digital inputs
– current valve status
è Tab. 5 OVEM-...-2P/-2N/PU/PI: additional displays of segment bars –
Examples and
è Tab. 6 OVEM-...-1PD: additional displays of segment bars – Examples
Tab. 4 Symbols in display
Display Description
Segment L10 is illuminated Vacuum solenoid valve is switched.
Segment L14 is illuminated Ejector pulse solenoid valve is switched.
Segment L17 + "[A]" illuminated and
Minimum pressure value display
"[min]" flashing
Segment L17 + "[A]" illuminated and
Maximum pressure value display
"[max]" flashing
Segment L18 + "[B]" are on and "[msec]" +
Duration of ejector pulse
"[_|¯¯|_]" are flashing
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Product overview
Display Description
Segments L1, L3, L4, L5 illuminated and Diagnostics of evacuation and air supply
times
"[msec]" + "[_|¯]" + "[min]" flashing Display of minimum evacuation time
"[msec]" + "[_|¯]" + "[max]" flashing Display of maximum evacuation time
"[msec]" + "[¯|_]" + "[min]" flashing Display of minimum air supply time
"[msec]" + "[¯|_]" + "[max]" flashing Display of maximum air supply time
"[msec]" + "[_|¯]" + "[SP]" + "[max]" flashing
"[msec]" + "[¯|_]" + "[SP]" + "[max]" flashing
Segments L1, L2, L5, L6 on and display
"<ON>" - "[optional]" flashing
Display/Setting of evacuation time critical
limit
Display/setting the air supply time critical
limit
Setting of air-saving function (EDIT mode)
"<ON>": air-saving function active
"<OFF>": air-saving function not active
Segments L1, L2, L5, L6 on and "[Lock]"
flashing
Setting the security code (1...9999)
<OFF>: security code is not active
Segment L10 + "[B]" on + display "<FORC>" additional function of the electrical manual
override via operating buttons
Vacuum solenoid valve switched
Segment L14 + "[B]" on + display "<FORC>" additional function of the electrical manual
override via operating buttons
Ejector pulse solenoid valve (Eject)
switched
Tab. 5 OVEM-...-2P/-2N/PU/PI: additional displays of segment bars – Examples
Display Description
Segment L10 is illuminated Vacuum solenoid valve is switched.
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Product overview
Display Description
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.
Segment L17 + "[A]" illuminated and
Minimum pressure value display
"[min]" flashing
Segment L17 + "[A]" illuminated and
Maximum pressure value display
"[max]" flashing
Segments L1, L3, L4, L5 illuminated
and
Diagnostics of evacuation and air supply times
"[msec]" + "[_|¯]" + "[min]" flashing Display of minimum evacuation time
"[msec]" + "[_|¯]" + "[max]" flashing Display of maximum evacuation time
"[msec]" + "[¯|_]" + "[min]" flashing Display of minimum air supply time
"[msec]" + "[¯|_]" + "[max]" flashing Display of maximum air supply time
"[msec]" + "[_|¯]" + "[SP]" + "[max]"
flashing
"[msec]" + "[¯|_]" + "[SP]" + "[max]"
flashing
Segments L1, L2, L5, L6 on and display
"<ON>" - "[optional]" flashing
Display/Setting of evacuation time critical limit
Display/setting the air supply time critical limit
Setting of air-saving function (EDIT
mode)
"<ON>": air-saving function active
"<OFF>": air-saving function not active
Segments L1, L2, L5, L6 on and
"[Lock]" flashing
Setting the security code (1...9999)
<OFF>: security code is not active
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Product overview
Display Description
Segment L10 + "[B]" on + display
"<FORC>"
additional function of the electrical
manual override via operating buttons.
Vacuum solenoid valve switched
Segment L12 + "[B]" illuminated + display "<FORC>"
additional function of the electrical
manual override via operating buttons.
Ejector pulse solenoid valve (Eject)
switched
Tab. 6 OVEM-...-1PD: additional displays of segment bars – Examples
5.2 Function
Function overview
The OVEM is a vacuum suction nozzle with digital transmission of setpoint and actual value as well as
diagnostics and parameterisation options. It is configured with the operating keys. Diagnostic messages are shown on the display.
Function OVEM-...
-2P/2N
/PU/PI
Control of the compressed air supply with 2 valve functions
è 5.2.2 Valve controller
x x
Air saving function è 5.2.3 Air saving function x x
Electrical and mechanical manual override
è 9.11 Electrical manual override and è 9.12 Mechanical manual override
Monitoring of the vacuum build-up by integrated pressure sensor and
x x
x x
advanced monitoring functionsè 5.2.5 Monitoring and diagnostics
Auto-drop function:
x Generation of an automatic eject pulse for accelerated vacuum purging
and safe set-down è 5.2.2 Valve controller
Generation of an eject pulse via a control signal at the digital switching
- x
input (ejection) DI2
Tab. 7 Function overview
OVEM-...
-1PD
5.2.1 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 set as threshold value or window comparator.
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Product overview
With active air saving function, the switching mode is set as the threshold value comparator by switching output A.
Threshold value comparator Normally open (NO) Normally closed (NC)
Switching function:
– 1 switching point (SP1)
TEACH mode1):
– 2 teach points (TP1, TP2)
– SP1 = ½ (TP1+TP2)
1) TP1 = minimum pressure value, TP2 = maximum pressure value, independent of the Teach sequence
Tab. 8 Threshold value comparator: setting of switching point SP1 and hysteresis HY
Window comparator Normally open (NO) Normally closed (NC)
Switching function:
– 2 switching points (SP1,
SP2)
TEACH mode1):
– 2 teach points (TP1, TP2)
1) TP1 = minimum pressure value, TP2 = maximum pressure value, independent of the Teach sequence
Tab. 9 Window comparator: setting of switching points SP1, SP2 and hysteresis HY
Code Switching output A Switching output B Switching inputs
-1PD - 2switching inputs
-2P Switching output positive
Switching output positive
switching pressure sensor
outputA
switching pressure sensor
1switching input positive
switching
outputB or diagnostic message channel
-PI Analogue output 4…20mA
vacuum
-PU
Analogue output 0…10V
vacuum
-2N Switching output negative
switching pressure sensor
outputA
Switching output negative
switching pressure sensor
outputB or diagnostic mes-
1switching input negative
switching
sage channel
Tab. 10 Switching output and switching input variants
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