GALaxy eHydro Elevator Controller Section 6 – Main CPU Faults & Detailed Faults
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Table 6-0: Main CPU Faults
Possible Cause/Suggested Fix
The group car is not
communicating with
Car 8
• Faulty wiring from R/T+ and R/T- from car to car.
• Faulty U6 driver chip on 1132 board.
• Noise on shield wire. Connect shield only on one end.
• Noise on the communication wires. Run wires in separate
conduit.
Car Call Light Fuse
Blown
• Check for short on the Car Call Light circuit.
Car Call Power Fuse
Blown
• Check for short on Car Call Power circuit.
Serial Car board reset
unexpectedly. Usually
caused by loss of
power to the
individual board.
• Usually caused by loss of power to the individual board.
Check for loose connection on power to board.• Faulty I/O
board.
• The car was either running or preparing to run and lost a
car gate or car lock input. Check the adjustment of the door.
The Car Safe Fault
occurs from the
wanting to run but
does not have a
critical input
energized. Some of
the conditions for a
car safe fault will also
cause other faults to
be logged.
• The car does not have the gate or lock inputs and is
running or trying to run
• The stop switch is open
• An inspection string input fault. Only one input should be
on in the inspection string (AUTO, CTI, ICI, ACC or MRI)
• Gate or Lock Bypass switch is on when not on car top
inspection
The car had a car safe
fault while pre-
opening the door.
• The car lost the DZ input while leveling into the floor and
the door was open.
The car had an
onward call, had the
door close limit but
the car gate or door
locks did not make
after a 3 second time-
out.
• The locks are not making properly when the door closes.
• The door is not closing properly.
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