ADB Safegate L-854, User Manual

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Table 13: L-854 Radio Control Equipment Troubleshooting
Problems and Possible Causes Solutions
Problem:No STATUS light
•
DECODER switch set to Disable Place DECODER switch to Enable
•
Defective lamp
Check lamp operation using the PANEL TEST button. Replace Display
board if lamp is defective.
Problem:ENERGIZED light(s) are on, but relay(s) fail to function
properly
•
Defective Relay board
Check if green LED(s) are on above relays.
Replace relay board if necessary.
Problem:One or more relays are not working correctly
•
No power switched by indicated relay
Check if green LED(s) are on above the relay. If yes, but no power is
switched, check:
•
Fuses F1 and F2 on the relay board are OK, and
•
Check that power is available to AComm and BComm inputs on
terminal strip.
•
Defective Relay board Replace relay board if necessary.
•
Relays not operating as expected
Check relay output configuration (cumulative or individual) on SW 1
( Table 8 )
Problem:Receiver does not work
•
Incorrect frequency Reset receiver to correct frequency.
•
Defective antenna Check antenna and antenna lead.
•
Low (or no) sensitivity
Increase sensitivity by turning SENSITIVITY
toward Max (clockwise)
•
Defective Control board Replace Control board.
Problem:No power lamp (switch)
•
No power Check power source.
•
Defective lamp Replace switch.
Problem:No lights on front panel display
•
Front door interlock switch not working Test front door interlock switch, replace if necessary.
Problem:Carrier Test button does not work.
•
SENSITIVITY set at min.
SENSITIVITY control until CARRIER TEST
works correctly.
8.1 Wiring Schematics
8.1.1 Introduction
This section provides wiring schematics for the L-854 Radio Control Equipment.
8.1.2 Wiring Diagram List
Figure 8 : 43A3349 page 1 of 3, 120Vac internal and external wiring diagram
L-854 Radio Control Equipment
Troubleshooting
30
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