Troubleshooting
6-12 Manual # 42-02-1P21
DVR 1 IS OFFLINE (CTLA) (Hydro only)
Description: Driver board HC-DVR #1 is offline.
Troubleshooting:
1. Power to the HC-DVR board may not be connected. Check the CAN bus connection between the
HC-DVR board and the HC-CHP CAN hub and power distribution board.
2. Make sure that the shunt has been removed from JP1 on the HC-DVR board.
3. Verify the SW1 settings on HC-DVR board #1: 1 = Off, 2 = Off.
4. If the DVR 1 indicator is not lit, reboot the processor by cycling the power to the controller or
by removing the CAN bus connection to the HC-DVR board for a few seconds.
5. Place Function Switches F1 and F8 in the ON (up) position and press N. Inability to locate the
version info for the HC-DVR board indicates that it is not communicating with the HC-MPU
board. The HC-DVR board may need to be replaced.
DVR 2 IS OFFLINE (CTLB) (Hydro only)
Description: Driver board HC-DVR #2 is offline. See also, DVR 1 IS OFFLINE -car has two starters.
Troubleshooting:
1. Power to the HC-DVR board may not be connected. Check the CAN bus connection between the
HC-DVR board and the HC-CHP CAN hub and power distribution board.
2. Make sure that the shunt has been removed from JP1 on the HC-DVR board.
3. Verify the SW1 settings on HC-DVR board #1: 1 = Off, 2 = Off.
4. Verify the SW1 settings on HC-DVR board #2: 1 = On, 2 = Off.
5. Verify that the setting for NUMBER OF MOTOR STARTERS = 2.
6. Verify that the setting for STARTER #2 TYPE is correct.
7. If the DVR 2 indicator is not lit, reboot the processor by cycling the power to the controller or
by removing the CAN bus connection to the HC-DVR board for a few seconds.
8. Place Function Switches F1 and F8 in the ON (up) position and press N. Inability to locate the
version info for the HC-DVR board indicates that it is not communicating with the HC-MPU
board. The HC-DVR board may need to be replaced.
DVR 2 MSSD FAILED ACTIVE (CTLA) (Hydro only)
Description: When the controller is configured for a solid state starter, output terminal SSD on
HC-DVR board #2 has 120 VAC while solid state device U1 is not in the On state.
Troubleshooting:
1. Verify the SW1 settings on HC-DVR board #1: 1 = Off, 2 = Off.
2. Verify the SW1 settings on HC-DVR board #2: 1 = On, 2 = Off.
3. Verify that the setting for NUMBER OF MOTOR STARTERS = 2.
4. Verify that the setting for STARTER #2 TYPE is correct.
5. Verify that voltage is not being fed to terminal SSD on HC-DVR board #2 from another source.
6. Verify that solid-state device U1 has not been damaged by shorted wiring connected to termi-
nal SSD (Call MCE Tech Support for details).
DVR 3 IS OFFLINE (CTLB) (Hydro only)
Description: Driver board HC-DVR #3 is offline. See also, DVR 1 IS OFFLINE and DVR 2 IS
OFFLINE - car has three starters.
Troubleshooting:
1. Power to the HC-DVR board may not be connected. Check the CAN bus connection between the
HC-DVR board and the HC-CHP CAN hub and power distribution board.
2. Make sure that the shunt has been removed from JP1 on the HC-DVR board.
3. Verify the SW1 settings on HC-DVR board #1: 1 = Off, 2 = Off.
4. Verify the SW1 settings on HC-DVR board #2: 1 = On, 2 = Off.
5. Verify the SW1 settings on HC-DVR board #3: 1 = Off, 2 = On.
6. Verify that the setting for NUMBER OF MOTOR STARTERS = 3.
7. Verify that the setting for STARTER #3 TYPE is correct.
8. If the DVR 2 indicator is not lit, reboot the processor by cycling the power to the controller or
by removing the CAN bus connection to the HC-DVR board for a few seconds.
Table 6.1 Status and Error Messages
Scrolling Message - Special Event Message
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