The Computer
5-68 Manual # 42-02-1P28 A3
DSL2 POSITION LOW (307) Description: The car encountered the DSL2 switch at a position lower than
that learned during the learn operation. The car will perform an emergency
slowdown then proceed at correction speed to the terminal.
Troubleshooting:
Verify position of switch (software or physical).
Repeat the learn operation (Utils > Landing System Utilities > Terminal
Switch Learn).
DUPLICATE CAR ID (277) Description: Informational: Same ID has been assigned to more than one
car.
DUPLICATE DISPATCHER (280) Description: Both cars in a duplex have been assigned the dispatcher role.
DVR1 IS OFFLINE (406) Description: Driver board HC-DVR #1 is offline.
Troubleshooting:
1. Power to the HC-DVR board may not be connected.
2. Check the CAN bus connection between the HC-DVR board and the HC-
CHP CAN hub and power distribution board.
3. Make sure that the shunt has been removed from JP1 on the HC-DVR
board.
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. If this message continues, the micro controller used for the HC-DVR
board may need to be replaced.
6. Cut off defective Y2 MOV from DVR board. (DVR1 is Offline & Leveling
Sensor Failure as below)
DVR2 AUX STARTER TIMEOUT
(630)
DVR3 AUX STARTER TIMEOUT (663)
DVR4 AUX STARTER TIMEOUT (696)
Description: One of the auxiliary starters did not start properly.
Troubleshooting:
On a solid state starter, the DR1 input did not go high within the time pro-
grammed in the UP TO SPEED TIMER parameter (1.0 - 8.0 sec).
DVR2 DN NORMAL LIM OPEN (648)
DVR3 DN NORMAL LIM OPEN (681)
DVR4 DN NORMAL LIM OPEN (714)
Description: This message indicates that the car has traveled beyond the
bottom terminal landing and has opened the down normal (directional) ter-
minal switch.
Troubleshooting:
1. Check the location of the car.
2. Check the voltage at terminal DNTD.
3. Check the limit switch connections.
DVR2 DN TERM LIM FAIL (646)
DVR3 DN TERM LIM FAIL (679)
DVR4 DN TERM LIM FAIL (712)
Description: Both the Down Slow Limit and Down Emergency Limit
switches have been detected to be in opposite states. These switches
should open/close simultaneously, meaning that the voltage at these termi-
nals should always be identical.
Troubleshooting:
1. Check the connections to terminals DSL1 and DSL2.
2. Check the limit switches for proper operation.
Table 5.10 Touch Screen Event Listings
Event Description
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