Troubleshooting
5-14 Manual # 42-02-2P24
GOVERNOR SWITCH OPEN
Description: The overspeed governor has activated, opening the safety circuit.
Troubleshooting: Check the overspeed governor.
GROUP TO CAR COMMUNICATION LOSS
Description: The car controller has detected a loss of communication with the group controller.
Troubleshooting:
1. Verify that the group controller MCP board is functioning properly. Reset if necessary.
2. Verify that SW1, switch 4 is set to OFF on the group controller HC-CHP board (determines communica-
tion baud rate).
3. Check the CAN cable between External Network connector J4 on the car MC-MPU board and External
Network connector J17 on the group HC-CHP board.
4. Check polarity of the CAN connection (CANH/CANH and CANL/CANL).
GS INPUT FAILURE
Description: The Gate Switch (GS) input has detected a failure of the ABGA or GBB outputs, DPM, DLAB,
or the gate switch.
Troubleshooting:
1. Check the gate switch. DPM should activate two inches before the gate switch.
2. If GS is active, DLAB must also be active.
GSR INPUT FAILURE
Description: The Rear Gate Switch (GSR) input has detected a failure of the ABGAR or RABA outputs,
DPMR, DLABR, or the rear gate switch.
Troubleshooting:
1. Check the gate switch. DPMR should activate two inches before the gate switch.
2. If GSR is active, DLABR must also be active.
HALL AND CAR CALL BUSES DISCONNECTED
Description: A fuse or wiring problem has stopped power to the call circuits.
Troubleshooting: Check call bus fuses. Check the wires that go to the call power outputs in the controller.
HALL CALL BUS IS DISCONNECTED
Description: A fuse or wiring problem has stopped power to hall call circuits.
Troubleshooting: Check the hall call bus fuse and the wires to the hall call power inputs in the controller.
HC-CTL BOARD DISCONNECTED
Description: The HC-CTL board is not communicating over the CAN bus.
Troubleshooting:
1. Check the CAN connection between the HC-CTL board and the HC-CHP board.
2. Verify CTL board LEDs lighted (board receiving power).
3. Verify green LED indicators ON for SPA, SPB, and SPC.
HEAVY LOAD WEIGHER CONDITION
Description: The HLI input has been activated.
Troubleshooting: In Program Mode, see if a spare input is programmed as an HLI input, then check to
see if that input is activated.
HOISTWAY ACCESS
Description: Hoistway access is active.
Troubleshooting:
Informational only.
Table 5.1 Status and Error Messages
Scrolling Message - Special Event Message
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