Troubleshooting Reference
Manual # 42-02-1P28 A3 5-67
DRD FAIL TO ACT (599) Description: The DRD input that monitors the UP TO SPEED output from
the solid state starter did not go high when expected.
Troubleshooting:
1. Check the wiring associated with the solid state starter, especially termi-
nal SSD.
2. This message may also be displayed if the UP TO SPEED timer duration is
shorter than the amount of time it takes to ramp the motor up to operating
speed.
3. If any faults are displayed on the solid state starter refer to the starter
manual.
4. Replace the HC-DVR board.
DRD INPUT FAILURE (608) 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. 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 MC-MPU
board is about 3Vdc.
3. The wiring or devices connected to DR1 input may not be terminated.
4. Check the Delta auxiliary contact wired to terminal DR1 and replace if
necessary.
5. Replace the HC-DVR board.
6. Make sure the motor is getting up to speed before the Y/D Transfer / Up
to Speed time elapses. (for solid state starters, starting current may be to
low)
DRDY IS OFF (313) Description: Starter ready input is off. Fault bypassed in Construction/
Inspection.
1. Check the drive or starter for fault indication and troubleshoot.
2. Verify DRDY output and input to HC-MPU-2-TS.
DSE/EB2 STUCK OFF (130) Description: Hydro Only. Down Slow Enable/EB2 commanded on but
remains in low state. Not bypassed in any mode.
Troubleshooting:
Verify connection and status of output.
DSE/EB2 STUCK ON (129) Description: Hydro Only. Down Slow Enable/EB2 have been reset but
remains in active state. Bypassed in Inspection or Construction Bypass
operation.
Troubleshooting:
Verify connection and status of output.
DLS1 IS LOW (268) Description: Informational: DSL1 input is low.
Troubleshooting:
If in error, verify function of switch (if physical) and/or input.
DSL1 POSITION LOW (305) Description: The car encountered the DSL1 switch at a position lower than
that learned during the hoistway learn operation.
Troubleshooting:
1. Verify position of switch (software or physical).
2. Repeat hoistway learn operation.
Table 5.10 Touch Screen Event Listings
Event Description
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