GALaxy eHydro Elevator Controller Section 6 – Main CPU Faults & Detailed Faults
6-72
Table 6-0: Main CPU Faults
Possible Cause/Suggested Fix
NTS UT I/O Failed On
during start. As part of
the redundancy check,
the Main CPU sends a
command to the NTS
processor to turn of
the UN, DN, UT and
DT outputs prior to
turning on any valve
outputs to verify that
the NTS outputs have
not faulted on. During
this process, the UT
output or the UT input
stayed on.
• UT output shorted on. Replace the output module.• UT
input failed on. Replace the input board.• UT test jumper
left on the module. Remove the test jumper.
An NTS variable is
setup incorrectly.
When the Main CPU
sent a floor setup
command to the NTS
processor it detected
that either the
number of valid floors
or top speed of the car
did not meet the job
configuration values.
• Correct the valid number of floor and tops speed
parameters in the NTS processor.
PALF Input Failed to
turn on as expected
• Safety PAL device did not operate as expected. Replace
the MAIN I/O Board.
PALF Input Failed to
turn off as expected
• Safety PAL device did not operate as expected. Replace
the MAIN I/O Board.
The Terminal limits do
not match the car
position (UT or DT is
hit but the car
position is not at the
top or bottom floor).
• NTS selector not setup properly.
• CPU APS selector not setup properly.
• Improper adjustment of UT or DT limit counts
To Next Page
Loading...