Troubleshooting Reference
Manual # 42-02-1P28 A3 5-61
CTLA RELATIVE POS. HIGH (357)
CTLB RELATIVE POS. HIGH (432)
Description: A or B channel from LS-EDGE (as specified in message) not
being received.
Troubleshooting:
1. Check connections between LS-EDGE, MC-LSI board, and HC-CTL-2
board.
2. Check the UTILS->LANDING SYSTEM UTILITIES->LANDING SYSTEM
VIEW screen and verify that both the upper and lower positions increment
when the car moves up or decrement when the car moves down on inspec-
tion. Verify that upper position value is larger than the lower position value
by 160mm when using an LS-EDGE landing system.
CTLA RELATIVE POS. LOW (358)
CTLB RELATIVE POS. LOW (433)
Description: A or B channel from LS-EDGE (as specified in message) not
being received.
Troubleshooting:
1. Check connections between LS-EDGE, MC-LSI board, and HC-CTL-2
board.
2. Check the UTILS->LANDING SYSTEM UTILITIES->LANDING SYSTEM
VIEW screen and verify that both the upper and lower positions increment
when the car moves up or decrement when the car moves down on inspec-
tion. Verify that upper position value is larger than the lower position value
by 160mm when using an LS-EDGE landing system.
CTLA RESTORING SAFFETY (410) Description: The CTL-2 board has a 5 second debounce between detecting
any faults and restoring the Safety String. This message is displayed during
that time.
CTLA WRONG LAND SYS CH (329)
CTLB WRONG LAND SYS CH (454)
Description: The named processor has detected that its associated CAN
connection from the landing system is not reporting the correct channel
identification. Usually, this means that the CAN 1 and CAN 2 connections
from the hoistway position sensor to the HC-CTL-2 board have been
“swapped” at the HC-CTL-2 board connector.
Troubleshooting:
1. Exchange the CAN 1 and CAN 2 connections on the HC-CTL-2 board con-
nector.
CTLB: CTLA IS OFFLINE (486) Description: The CTL-2 B processor does not see any communication from
the CTLA processor.
Troubleshooting:
Check all shunt jumpers are set correctly on the CTL-2 board.
CTLB LS CHECKSUM FAIL (463) Description: The CTLB stores a checksum identifier for the LS-EDGE and
LS-RAIL landing systems. It has detected that the landing system identifier
does not match, possibly due to swapping out a landing system or CTL
board.
Troubleshooting:
Re-learn the hoistway.
CYCLE TEST WARNING (507) Description: nnn = ESC (293), INA (296), INCP (297), INCT (295), M2L
(300), MRIN (298), MASF HIGH (299), MASF LOW (309), PLD COMM
(308), PLD ESC (301), PLD INA (304), PLD INCP (305), PLD INCT (303),
PLD MRIN (306), PLD SAFC (302), SAFC (294), MOTION COMM (307)
Before departing a floor, code requires that safety related inputs be tested
to ensure they are in the proper state. If an error is found, a Cycle Test
fault specific to the problem input will be displayed. Fault-bypassed in Con-
struction/Inspection.
Troubleshooting:
Verify installation, condition, and connections for the specified equipment.
Table 5.10 Touch Screen Event Listings
Event Description
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