Troubleshooting Reference
Manual # 42-02-1P28 A3 5-69
DRV2 DRD INPUT FAILURE (641)
DVR3 DRD INPUT FAILURE (674)
DVR4 DRD INPUT FAILURE (707)
Description: The Delta Redundancy (DRD) input monitors the normally
closed auxiliary contact of the Delta contactor.
Troubleshooting:
1. Verify that the STARTER #1 (2, 3) TYPE parameter setting is correct (see
page 5-48). This fault is generated if the starter is solid-state but the
starter type parameter is set to WYE-DELTA.
2. Verify that voltage of the coin shaped battery (CR2032) on the HC-MPU-
2-TS board is about 3Vdc. The wiring or devices connected to DR1 input
may not be terminated.
3. Check the Delta auxiliary contact wired to terminal DR1 and replace if
necessary.
4. Replace the HC-DVR board.
5. Make sure the motor is getting up to speed before the Y/D Transfer / Up
to Speed time elapse. (for solid state starters, starting current may be too
low).
DRV2 EXCESS FAILED STARTS
(643)
DVR3 EXCESS FAILED STARTS (676)
DVR4 EXCESS FAILED STARTS (709)
Description: The starter failed to start after three consecutive attempts.
Troubleshooting:
1. Check the fault log to see what faults were generated when attempting
to run the starter. To date, VCI operation increments the counter for this
fault.
2. If car does NOT shut down completely after three attempts: Verify that
High Speed Inspection = DISABLED under F3 menu. Having this Enabled
will prevent complete shutdown after three attempts.
DVR2 IS OFFLINE (493) 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.
DVR2 M2L INPUT FAILURE (635)
DVR3 M2L INPUT FAILURE (668)
DVR4 M2L INPUT FAILURE (701)
Description: The M2L input monitors the status of the relay contacts of
SAFL and SAFS against the circuits that drive these relay coils. Bus 2L
should be 120VAC and relay SAFL should be picked only if the doors are
locked. 2MV bus must also be active.
Troubleshooting:
1. Check or replace relays SAFL and/or SAFS on the HC-CTL-2 board.
2. Verify that IDC terminal 2L on the HC-CTL board connects to IDC termi-
nal 2L on the HC-DVR board.
3. Check the thermal overload wiring between terminals TO1 and TO2 on
the HC-DVR board.
4. Check the wiring of the starter overload between terminal OL1 and OL2
(if present).
Table 5.10 Touch Screen Event Listings
Event Description
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