BERNSTEIN SCR OM Manual Download Page 10 | Manualshive

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Light Curtain

The Bernstein Light curtain is to be connected to the SCR OM as shown below:

Power supply, Mute Over-ride key switch, Muting lamp, Start button

Connection of the supply voltage, mute over-ride, mute lamp and start button is as follows:

Only connect the operating voltage to terminals A1+ and A2- when the remaining wiring has been
completed.

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Summary of Contents for SCR OM

Page 1: ... EN 61496 1 For applications up to safety category 4 according to EN 954 Connection of an external muting light according to EN 61496 1 Connection of different muting sensors NPN PNP and relay outputs Monitoring of external contactors and expansion modules Housing with detachable terminal strips CE 1 Art Nr 6562321009 Original 01 Benennung SCR OM 24VDC Mittl Nr 0089 07 Datum 13 02 2007 ...

Page 2: ...e access to all the information supplied by the manufacturers of the machine and its safety system PLEASE OBSERVE THE FOLLOWING The device may only be installed and commissioned in compliance with these operating instructions by suitably qualified personnel familiar with working safety and accident prevention legislation Electrical work may only be performed by suitably qualified electricians Repa...

Page 3: ...e SCR OM provides a safe method of providing a muting function by the appropriate use of carefully positioned sensors either two or four at the entrance exit of the danger area in such a way that only the material being transported activates the sensors Once the material has activated the muting sensors the SCR OM then initiates the muting cycle for the period during which the material is being tr...

Page 4: ...od of 0 25 seconds and the light curtain will no longer be bypassed 1 a i i a i a i a i a i a Muting a active b inactive t 3s t 3s 0 25 s ML MS4 MS3 MS2 MS1 Signal must be overlapping i e both muting sensors must be active at the same time MS1 ML MS2 MS3 MS4 MS1 ML MS2 MS3 MS4 MS1 ML MS2 MS3 MS4 MS1 ML MS2 MS3 MS4 MS1 ML MS2 MS3 MS4 t1 t2 t3 t5 It is possible to use only two retro reflected type m...

Page 5: ...front panel of the SCR OM are used to indicate the control units status 1 Power ON 2 Fault 3 Restart inhibit on waiting for start 4 Operation Channel 1 activated 5 Operation Channel 2 activated 4 5 flashing Error code See Section XXX 5 ...

Page 6: ...nsor x MSx Negative voltage for muting sensor x MSxP Input of muting sensor x PNP MSxN Input of muting sensor x NPN BWSE Positive voltage for light curtain signals BWSE Negative voltage for light curtain signals BWSxP Input of light curtain channel x PNP BWSxN Input of light curtain channel x NPN 13 14 23 24 33 34 Relay safety outputs 63 64 Light curtain enable output 54 Negative internal supply v...

Page 7: ... inductive capacitative and optoelectronic sensors are suitable as muting sensors either solid state outputs or relay outputs can be used 1 The muting sensors must have a rated voltage of 24 V DC at the output Key operated switch Mute Over ride A key operated switch is connected to the SCR OM to allow the user to manually activate of the mute cycle regardless of the status of the mute sensors for ...

Page 8: ...t O1 switches to 24V when the safety outputs are active Optocoupler output O2 switches to 24V when the connected light curtain is interrupted Mechanical Installation Dust and moisture can lead to malfunctions Install the device in a dust and damp proof housing for example in a switch cabinet or a IP54 housing Mount the muting controller on a universal mounting rail DIN EN 50022 as shown below OP O...

Page 9: ...2 Muting sensors Muting sensors are wired depending on the operating mode type and number of sensors Either 2 or 4 muting sensors must be connected to the muting controller When using two muting sensors these must be connected to terminals MS1 and MS2 Connect the muting sensors in accordance with the diagrams below MSxP and MSxN must always be connected on the SCR OM The unused connections on the ...

Page 10: ...M as shown below Power supply Mute Over ride key switch Muting lamp Start button Connection of the supply voltage mute over ride mute lamp and start button is as follows Only connect the operating voltage to terminals A1 and A2 when the remaining wiring has been completed 10 ...

Page 11: ...n is unobstructed the outputs will be activated To extend the safety outputs relays with positive guided contacts must be used The use of external relays without spark suppressors can lead to damage to the muting controller For this reason always connect protection diodes e g Type 1N4007 in parallel with any external relay coils 11 ...

Page 12: ...h the LEDs from channel 1 and channel 2 It is possible under certain circumstances for both channel LEDs to indicate different errors From the number of flashes flashing code it is possible to determine which fault has occurred See following table for flash codes Example Netz Power Kanal 1 Channel1 Kanal 2 Channel2 Störung Fault Channel 1 LED flashes 9 times code 9 Channel 2 LED flashes once code ...

Page 13: ...ise on control line Output fault Check wiring of output 63 64 9 Muting lamp disconnected Muting lamp faulty Muting lamp is missing No link on AML terminals Check muting lamp and change if necessary Insert link between AML terminals 10 Key switch activated twice After the clearance of the light barrier the key switch was activated a second time Reset system 11 Light curtain disconnected during star...

Page 14: ...nable N O Relay 2 A 24 V DC Output 7374 auxiliary mute lamp N O Relay 1 2 A 24 V DC Output OP O1 OP O2 Optocoupler 20mA 24 V DC Power supply muting sensors Together max 0 5 A 24 V DC Output 53 muting lamp 24 V DC max 1 A Mechanical data Housing material Self extinguishing according to UL 94 V 0 Dimensions WxHxD 90x84x121 mm Mounting Snap mounting on universal mounting rail NS35 according to DIN EN...

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