Control System Fault Codes Diagnostics Section
©Vertical Express 3-36 Printed in USA April 2020
This manual shows only the parameters that have an operational relevance to the ICON32. The UIT may have
additional parameters available, which should not effect the controller operation.
1062
1. Encoder interrupt failure - A car passed a slowdown
point without receiving confirmation from the encoder.
2. Improper normal terminal slowdown magnet
placement.
Possible Causes:
• A defective encoder.
Possible Solutions:
• Check the slowdown magnets for gaps.
• Verify the P17 and/or P18 adjustments.
• The terminal slowdown (NTST input for top, NTSB input
for bottom) is reached too early (before the corresponding
selector slowdown is reached). See P17 for top, and P18
for bottom.
• If the NTSB input deactivates (metered logic) at the top
terminal, or if the NTST input deactivates (metered logic)
at the bottom terminal,
• A 1086 error is generated,
• A 1062 error is generated,
• The car will run at slow speed to next stop.
• Check the slowdown magnets for gaps.
1067
Viscosity operation has detected activation of both low tem-
perature and high temperature sensors at the same time.
• One or both sensors is out of adjustment.
• One or both sensors is defective.
• Input wiring error.
1068 Dual post jack resync fault. See WJR.
1069
False power failure error - The CPU received a false Non-
Maskable Interrupt (NMI), indicating an impending power fail-
ure, and the power did not fail.
• Electrical noise affecting the power fail detection signal and/
or the power supply (check grounding and noise suppres-
sion).
• Power supply adjustment.
•Defective power supply.
1070
LVU-LVD error - Neither of the LVU or the LVD leveling sensors
were active while the car was within the door zone.
Minimum requirements:
• One sensor active within the door zone.
• Both sensors active at the floor level.
• Defective selector sensors.
1073
Car/Gate door open limit error - A fault has been detected
due to the simultaneous activation of the car gate contact
and the door open limit.
• A defective gate contact and/or door open limit.
• Improper wiring.
• Defective communication between the CPU Card and the
electronic door operator.
• Defective CPU Card &/or electronic door operator.
•A defective DOL or CDCF input.
1074 Input PRSW Active (Pressure Switch). —
1075
Car stop switch override error - The car stop switch override
circuit (controlled by CSTO output) has been detected faulty
by its monitoring CSTOM input, and the elevator shuts down.
• A defective CSTOM input.
• A defective CSTO output.
• Improper wiring.
1076
Freight door interlock stuck error - The freight door interlock
(FDI) has failed to close at the start of a run, or failed to open
at the end of a run.
• A defective interlock.
• A defective retiring cam.
• Improper wiring.
1077
Loss of encoder pulse train error - While the car was in
motion, the encoder motion signal pulse train (furnished by
either a tape or rotary encoder) was lost, and the elevator is
shut down at a floor.
• A defective rotary encoder.
• Defective tape motion sensors.
• Improper wiring.
1078
Low battery error - The 3-volt battery in the CPU Card is
either low or dead:
• This battery is required to ensure retention of job configu-
ration and adjustments.
• If the job configuration and adjustments are lost, then the
job configuration must be uploaded again from IMS.
• Elevator adjustments may have to be repeated, including
scanning the hoistway to learn the floor positions.
• A dead battery.
• The battery is missing, or installed backwards.
Code Description (cont.) Possible Causes/Solutions (cont.)
To Next Page
Loading...