IRB-4X™ Operating Instructions 6
Document no. 10060104
1. No power on transmitter
or receiver
2. Transmitter not working
3. Receiver not working
4. Sensitivity set too low
1. Check power LEDs and power source
2. Install new transmitter
3. Install new receiver
4. Adjust sensitivity
1. Bad connection or broken
wires
2. Relay contacts burned or
stuck
3. Interference from local
source
4. Not Connected to correct
input terminals
5. Sunlight “blinding” the
receiver eye
1. Check wires and connections
2. Replace Receiver
3. See step 7 under Operational Settings
4. Check operator manual for terminals
5. Change position of receiver to a little
higher and tilt forward to shield the
sensor from the direct sunlight
See step 7 under Operational settings
and see if any reflective surfaces could
be sending a signal into the receiver
sensor
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