Troubleshooting Reference
Manual # 42-02-1P28 A3 5-53
CONTRACT OVERSPD (164) Description: The processor has detected a contract overspeed (F7 menu,
parameter 150). Power will be removed from brake and motor to bring the
car to an immediate halt.
Troubleshooting:
1. Check the integrity of the landing/positioning system encoded tape.
Use a hand tach to check the speed at which the overspeed is triggered. If
this is occurring on a job that is just being set up or adjusted or has had
this problem sporadically, Check F7 menu Contract Speed setting (parame-
ter 153).
2. Check F7 menu Contract Overspeed setting (parameter 150 should be
set to about 108% of Contract Speed).
3. Check F7 menu Contract Rotation setting (parameter 154). Check cor-
rect gear ratio, drive parameter LF.22.
4. Check drive Contract Speed, High Speed, Sheave Diameter, Gear and
Roping Ratio, Integral Gain, and Encoder settings.
CP INS STUCK INPUT (90) Description: Car Panel Inspection Enable, Up, and Down inputs are moni-
tored in all modes of operation. This fault is asserted if any of the three is
high when the car is on Automatic mode or is detected as stuck during
Inspection mode. This fault does not affect car behavior on Inspection
mode. On Automatic modes, the car is allowed to answer its first call. The
CP Ins Stuck Input Flt is then asserted if the car is already at a floor or has
reached a floor. See description below. Fault-bypassed in Construction.
Troubleshooting:
Check all car panel inspection related inputs, switches, and wiring (HC-
MPU-2-TS ICEN, ICPU, and ICPD).
CP INS STUCK INPUT FLT (91) Description: A stuck Car Panel Inspection input has been asserted (see
description above) and the car is already at a floor or has reached a floor.
The doors open to release passengers and the car removes itself from ser-
vice. Fault bypassed in Construction mode.
Troubleshooting:
Check all car panel inspection related inputs, switches, and wiring (HC-
MPU-2-TS ICEN, ICPU, and ICPD).
CT INS STUCK INPUT (88) Description: Cartop inspection Enable, Up, and Down inputs are monitored
in all modes. This fault is asserted if any of the three is high when the car is
on Automatic mode or is detected as stuck during inspection mode. This
fault does not affect car behavior on inspection mode. On automatic modes,
the car is allowed to answer its first call. The CT Ins Stuck Input Flt is then
asserted if the car is already at a floor or has reached a floor. (See descrip-
tion below.) Fault-bypassed in Construction.
Troubleshooting:
Check all Car Top Inspection related inputs, switches, and related wiring
(HC-MPU-2-TS CTEN, ICTU, and ICTD).
CT INS STUCK INPUT FLT (89) Description: A stuck Cartop Inspection input has been asserted (see
above) and the car is already at a floor or has reached a floor. The doors
open to release passengers and the car removes itself from service. Fault
bypassed in Construction mode.
Troubleshooting:
Verify switches and wiring on HC-MPU-2-TS inputs CTEN, ICTU, and ICTD.
CTLA CAR BYP SW FAIL (399)
CTLA R CAR BYP SW FAIL (429)
Description: Indicates that the CAR DOOR BYPASS switch has failed.
Troubleshooting: Replace the HC-CTL-2 board.
Table 5.10 Touch Screen Event Listings
Event Description
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