Status and Error Messages
6-17
DVR-’n’ OLM INPUT IS LOW (n = 2 or 3) (Hydro only)
Description: The OLM input monitors the status of the both the thermal overload and the starter
overload contacts. 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 the wiring of the thermal overload between terminals TO1 and TO2 on the HC-DVR
board.
2. Check the wiring of the starter overload between terminal OL1 and OL2 (if present).
DVR-’n’ RP SENSOR TRIPPED (n = 2 or 3) (Hydro only)
Description: The Reverse Phase sensor detected a problem with the incoming power and the RP
sensor’s N/C contacts activated HC-DVR board (2 or 3) RP1 input (active high - 120VAC). The car
returns to the bottom landing, cycles the doors and shuts down. The DOB can cycle the doors.
Troubleshooting:
1. Verify that HC-DVR board (2 or 3) terminal RP1 to ground = 120VAC.
2. Check the wiring (phase rotation) to the motor starter.
3. Check the wiring to the RP sensor (incorrect, loose or missing wires).
DVR-’n’ STARTER FAULT CONTACT OPEN (n = 2 or 3) (Hydro only)
Description: The solid-state starter internal fault contact is open.
Troubleshooting:
1. Check the solid-state starter fault display screen and refer to the starter manual for trouble-
shooting instructions.
2. Verify that terminal YR1 has 120VAC.
DVR-’n’ STARTER TYPE ERROR (n = 2 or 3) (Hydro only)
Description: The HC-DVR board has received an invalid starter type from the from the MPU board.
Troubleshooting: May be caused by a communication error between the HC-MPU and HC-DVR
boards, call MCE Tech Support.
DVR-’n’ UP NORMAL LIMIT OPEN (n = 2 or 3) (Hydro only)
Description: This message indicates that the car has traveled beyond the top terminal landing and
has opened the up normal (directional) terminal switch.
Troubleshooting:
1. Check the location of the car.
2. Check the voltage at terminal UNTD.
3. Check the limit switch connections.
DVR-’n’ UP TERMINAL LIMIT FAILURE (n = 2 or 3) (Hydro only)
Description: Both the Up Slow Limit and Up Emergency Limit switches have been detected to be in
opposite states. These switches should open/close simultaneously, meaning that the voltage at
these terminals should always be identical.
Troubleshooting:
1. Check the connections to terminals USL1 and USL2.
2. Check the limit switches for proper operation.
DVR-’n’ YRD INPUT FAILURE (n = 2 or 3) (Hydro only)
Description: The Y Contactor Redundancy (YRD) input monitors the normally closed auxiliary con-
tact of the Y starter contactor.
Troubleshooting:
1. The wiring or devices connected to YR1 input may not be terminated.
2. Check the Y auxiliary contact wired to terminal YR1 and replace if necessary.
3. Check the operation of the Y contactor.
Table 6.1 Status and Error Messages
Scrolling Message - Special Event Message
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