The Computer
5-60 Manual # 42-02-1P28 A3
CTLA RSV FAIL TO ACTIV (413) Description: With the VALVE TYPE parameter set to PILOT RELAYS, the
Redundancy Slow Valves (RSV) input did not go high when controller deac-
tivated the associated pilot relays.
Troubleshooting:
1. Check the wiring to the RSV spare input.
2. Verify that the RSV input is programmed in the correct spare input loca-
tion.
3. Set the proper external memory address for the RSV spare input. Use a
120VAC jumper to toggle the RSV input and verify that the appropriate bit
toggles.
4. Verify that the appropriate slow pilot relay (up or down) remains picked
throughout the run.
CTLA RSV FAIL TO DEACT (419) Description: With the VALVE TYPE parameter set to PILOT RELAYS, the
Redundancy Slow Valves (RSV) input did not go low when controller acti-
vated the associated pilot relays.
Troubleshooting:
1. Check the wiring to the RSV spare input.
2. Verify that the RSV input is programmed in the correct spare input loca-
tion.
3. Set the proper external memory address for the RSV spare input. Use a
120VAC jumper to toggle the RSV input and verify that the appropriate bit
toggles.
4. Verify that the appropriate slow pilot relay (up or down) remains picked
throughout the run.
CTLA SAFC INPUT FAILURE (396) Description: The processor has detected that the Car Safety String (SAFC)
input on the HC-CTL-2 board is in an incorrect state. It should not have
120VAC unless the SAFH input also has 120VAC.
Troubleshooting: Check the wiring or devices connected to the SAFC
input. This could also be caused by a component failure on the HC-CTL-2
board.
CTLA UP NORMAL LIM OPEN (368)
CTLB UP NORMAL LIM OPEN (433)
Description: This message indicates that the car has traveled beyond the
top terminal landing and has opened the up normal (directional) terminal
switch.
Troubleshooting:
1. Check the location of the car.
2. Check the voltage at terminal UNTD.
3. Check the limit switch connections.
4. Replace the HC-DVR board.
5. Verify integrity of the landing system.
CTLA: PLD IS OFFLINE (427) Description: HC-CTL-2 board safety processor C is offline.
Troubleshooting:
Power to the HC-CTL-2 board may not be connected. Check the CAN bus
connection between the HC-CTL-2 board and the HC-CHP CAN hub and
board.
If the GROUP indicator is not lighted, reboot the processor by cycling power
to the controller or by removing the CAN bus connection to the HC-CTL-2
board for a few seconds. If fault occurs while updating software, refer to
update instructions and repeat process.
Table 5.10 Touch Screen Event Listings
Event Description
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