14-1 Receiver Endcap Indicator Lights
14 Troubleshooting
26
14 Troubleshooting
14-1 Receiver Endcap Indicator Lights
1. GREEN – The guarded machine is operating.
2. RED - The light curtain is blocked and the guarded machine is not operating.
3. YELLOW interlock- The light curtain is waiting for the start button to be pushed. The guarded machine is not
operating. If the LED is blinking, the light curtain is in a alarm condition.
4. AMBER FB or CS – The light curtain is operating in a reduced resolution mode.
14-1-1 Receiver Troubleshooting
If the yellow interlock LED is blinking:
1. Check the configuration for MPCE Monitoring. If MPCE Monitoring is inactive (via receiver endcap DIP
switches), the input (pink wire) must be connected to system ground. If MPCE is active, the input must be
connected to the normally closed contacts of the control relays of the guarded machine or the monitor ter-
minal of the RM module. See Section 10—Connecting To The Machine Control Circuit for an example.
2. Make sure both DIP switches in the receiver endcap have been set properly and identically.
See Tables 4-1, 5-4 and 6-1 in manual.
3. Verify the power supply is within specified limits (+24V ± 20%).
4. Verify the light curtain is properly connected to the control relays of the guarded machine. If the light curtain
is not intended to be connected to control relays, see Section 7-1—Safety Outputs of manual for instruction.
5. Verify the control relays are within operating limits of the safety outputs. See Section 2-2—Technical Spec-
ifications.
6. Verify the cable lengths from the light curtain to the control relays are within specified limits.(Max.60 m is
possible.)
7. Call OMRON.
If the red LED is always on:
1. Verify the yellow LED on the emitter is on.
2. Realign the light curtain.
3. Verify the first beam (synchronization beam) is not obstructed.
14-2 Emitter Endcap Indicator Light
Yellow – The Emitter is active. If the LED is blinking, the light curtain is in a alarm condition.
14-2-1 Troubleshooting the Emitter
If the yellow LED is off:
1. Verify the cable is connected.
2. Verify the power supply is within limits (+24V ± 20%).
3. Call OMRON.
If the yellow LED is blinking:
1. Verify the power supply is within limits (+24V ± 20%).
2. Call OMRON.
Summary of Contents for F3SL
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