GALaxy eHydro Elevator Controller Section 6
– Main CPU Faults & Detailed Faults
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Table 6-0: Main CPU Faults
Faults
Description
Possible Cause/Suggested Fix
RUN I/O
Failed On
The RUN input or
output has failed on.
• The RUN relay has failed on or RUN relay contact has
failed in the closed position. Replace the RUN relay.
• Faulty RUNi input. Replace the RUNi input chip.
• Faulty RUN output. Replace the RUN output chip.
• The solenoid
common is shorted to GND. Refer to the
schematic and check the circuit with a meter.
Run Inhibit Rset Cnt
Run inhibit from reset
count
• Once the car is in Reset mode, the controller attempted 5
times to come off reset but it keeps being sent back to the
reset mode because of a fault condition.
S10 Fuse Blown Fault
The S10 input is off.
No Power on S10
• Short from S10 to GND.
Safety String Fault
Safety string fault
occurs from the
following conditions:
•
The safety string is
open from one of the
following inputs being
off: GOV, HSS, EXT,
CSS, CTS, FFS, CST,
MRSW.
• The safety string is open (One or more of the safety inputs
are off). Refer to the job prints and check all circuits ahead
of the MRSW input.
SD I/O Failed Off
The SD input or
output has failed off.
• Faulty SDi input. Swap input board to see if SDi input chip
is bad and replace input board if necessary.
• The SD solenoid is shorted to GND at the SD terminal.
Refer to the schematic and check the circuit with a meter.
• Faulty
SD output. Swap the output with another device to
verify if the output is bad and replace if necessary.
SD I/O Failed On
The SD input or
output has failed on.
• Faulty SDi input. Swap input board to see if SDi input chip
is bad and replace input board if necessary.
• The SD test jumper was left on the output after an I/O
test. Remove test jumper.
• Voltage back feed through the SD coil. Verify that the SD
solenoid is connected to the solenoid common. Refer to the
schematic and check the circuit with a meter.
• Faulty SD output. Swap the output with another device to
verify if the output is bad and replace if necessary.