Controlled Products Systems Group LA500 - Manual (Page 43)

41
TROUBLESHOOTING CHART
TROUBLESHOOTING
FAULT POSSIBLE CAUSES CORRECTIONS
Accessories
connected to
Accessory power
not working
correctly, turning
off, or resetting.
a) Accessory power protector active
b) Defective control board a) Disconnect all accessory powered devices and measure accessory power voltage (should
be 23 – 30 Vdc). If voltage is correct, connect accessories one at a time, measuring
accessory voltage after every new connection.
b) Replace defective control board
Quick Close not
working correctly.
a) Quick Close setting incorrect
b) Interrupt loop detector or loop wire defective
c) Defective Expansion board a) Check that Quick Close setting is ON
b) Check operation of Interrupt Loop detector
c) Replace defective Expansion board
Anti-Tailgating not
working correctly.
a) Anti-Tail setting incorrect
b) Interrupt loop detector or loop wire defective
c) Defective Expansion board a) Check that Anti-Tail setting is ON
b) Check operation of Interrupt Loop detector
c) Replace defective Expansion board
AUX Relay not
working correctly.
a) AUX Relay setting incorrect
b) AUX Relay wiring incorrect
c) Defective Expansion board a) Check AUX Relay switches settings
b) Check that wiring is connected to either N.O. and COM or to N.C. and COM.
c) Set AUX Relay to another setting and test. Replace defective expansion board.