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with Relay Outputs
- Intended for use with Bernstein light curtains
- Muting controller for presence sensing safeguarding devices according to 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
Muting controller
SCR OM
Special characteristics:
CE
Art.-Nr.:
6562321009
Original:
01
Benennung: SCR OM 24VDC
Mittl.Nr.:
0089-07
Datum:
13.02.2007
1
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Table of Contents
Related Manuals for BERNSTEIN SCR OM
Summary of Contents for BERNSTEIN SCR OM
- Page 1 Relay Outputs SCR OM Special characteristics: - Intended for use with Bernstein light curtains - Muting controller for presence sensing safeguarding devices according to 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...
- Page 2 Please observe the relevant valid regulations, in particular those pertaining to safety measures and the installation of muting sensors, the muting lamp and the Bernstein light curtain. It must be possible to view the danger area from the installation location of the start button and the key-operated switch.
- Page 3 Introduction The Bernstein SCR OM muting controller with relay outputs is designed to be used with the new generation of Bernstein safety light curtains, to safeguard operators from dangerous machinery up to safety category 4 as described in EN 954-1. The integrated muting function, which has been designed to EN 61496, permits goods to be transported into or out of the danger area without impairment to the safety function.
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Page 4: Operation
The muting lamp will turn on, and any interruption of the light curtain will not cause the outputs of the SCR OM to de-activate. Once three of the four muting sensors have been cleared, the muting cycle will terminate after a time period of 0.25 seconds, and the light curtain will no longer be bypassed. - Page 5 Indicators Five indicators on the front panel of the SCR OM are used to indicate the control units status. Power ON Fault Restart inhibit on, waiting for start Operation – Channel 1 activated Operation – Channel 2 activated 4+5 flashing Error code (See Section XXX)
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Page 6: Connection Details
Connection Details The following terminals are available on the SCR OM muting control unit Terminals Description A1+ , A2- Supply Voltage EST+, EST Start/Restart button ESS+, ESS Key-operated switch (Mute Over-ride) ESS+, 53 Muting lamp Not used for muting operation... -
Page 7: Muting Sensors
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 example, when the material is already located in the area monitored by the muting sensors, and the control unit outputs are de-activated. -
Page 8: Mechanical Installation
Outputs The muting controller has the following outputs: Three N/O safety relay outputs (13-14, 23-24, 33-34) One N/O auxiliary mute lamp output (73-74) Two auxiliary optocoupler outputs (OP-O1, OP-O2) 24 V DC Optocoupler output O1 switches to 24V when the safety outputs are active. Optocoupler output O2 switches to 24V when the connected light curtain is interrupted. -
Page 9: Electrical Installation
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 SCR OM must be connected as follows: If MSxN is not used, connect MSx- to MSxN... -
Page 10: Light Curtain
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. - Page 11 Safety Outputs The terminals 13-14, 23-24 and 33-34 are safety relay outputs. If the muting controller is running and the light curtain 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.
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Page 12: Commissioning And Testing
Commissioning and Testing After applying the supply voltage, the SCR OM performs an internal self-test. LED’s 1,3,4 and 5 light up, and the SCR OM can then be activated by pressing the start button, and the outputs should activate. If the self-test has not been successfully executed, there could be a fault or a connection error. For details, see the following section "Troubleshooting". -
Page 13: Fault Diagnosis Chart
Fault Diagnosis Chart Fault Possible cause What to do Differences between the channels Only one Channel detects an Error Look at the Flash Code of the other channel One of the channels activates One channel faulty Reset system Feedback circuit open Normally closed contacts of external Check wiring relays are not connected... -
Page 14: Technical Data
Technical data Electrical data Supply voltage Uv 24 V DC Voltage range 0,90 ...1,1 Uv ≤ 5% Maximum ripple Power consumption without peripheral devices appr. 10 W Conductor connection 1 x 4,0 mm wire 2 x 1,5 mm wires Safety Outputs 3 N/O contacts Switching voltage 24 V DC...
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