Technical data

21 Manual #001451 Version 4.2
Trouble Shooting Continued...
Light Curtain
Problem Possible Cause Corrective Action
Red alarm LED on. Transmitter disabled no syn-
chronization signal.
Check power supply and cable
green LED should be on at all
times.
Yellow LED flashing. Sever electrical interference.
High ambient light.
Remove cables from high volt-
age.
Check and adjust alignment of
transmitter and receiver.
Yellow LED always off. Receiver cannot see transmitter. Remove obstruction.
No green LED. Loss of 24 VDC Check across terminal 1 and 4
on module B:
Remove wires from terminal 1,
2, 3, 4.
If 24 VDC present at terminal 1
and 4: isolate faulty light curtain.
If 24 VDC not present at termi-
nal 1 and 4 after removal of
wires: faulty module.
Motor Drive Fault
To clear a fault press the stop key, or cycle power.
Problem Possible Cause Corrective Action
Motor drive fault F3 power loss.
F4 undervoltage.
F5 overvoltage
F6 motor stalled.
F8 heatsink overheat.
F13 ground fault.
Check incoming power.
Check incoming power for low
voltage or power interruptions.
Check for incoming power.
Increase accel time or reduce
load so drive does not exceed
set current in A089.
Check for blocked or dirty heat
sink fins, check fan.
Check the motor and external
wiring for the drive output termi-
nals for a grounded condition.