Status and Error Messages
6-29
MTD INPUT FAILURE (CTLA) (Hydro only)
Description: The input monitors the continuity of the DEL contactor coil and also checks the OFF
state of the (TD) triac.
Troubleshooting:
1. Verify that the STARTER #1 TYPE parameter is set to the correct type, WYE-DELTA or ACROSS
THE LINE.
2. Check the termination of the left hand DEL contactor coil at terminal DD1 on the HC-DVR
board.
3. Check the normally closed auxiliary contact of Y that feeds the right hand coil of DEL.
MTM FAILED TO ACTIVATE (Hydro only)
Description: The MTM input monitors the status of the TM triac and the TM triac driver. When
either fails to activate when expected this fault is generated.
Troubleshooting:
1. Check the starter configuration and programming record.
2. Check motor contactor wiring and voltages at terminal M1 on the HC-DVR board.
3. The TM triac may have failed open. Replace the HC-DVR board.
MTM FAILED TO DEACTIVATE (Hydro only)
Description: The MTM input monitors the status of the TM triac and the TM triac driver. When
either fails to deactivate when expected this fault is generated.
Troubleshooting:
1. Check the starter configuration and programming record.
2. Check motor contactor wiring and voltages at terminal M1 on the HC-DVR board.
3. The TM triac may have shorted. Replace the HC-DVR board.
MTM INPUT FAILURE (CTLA) (Hydro only)
Description: The input monitors the continuity of the M contactor coil and also checks the OFF
state of the (TM) triac.
Troubleshooting:
1. Verify that the M CONTACTOR INSTALLED parameter has been set to YES (if present).
2. Check the contactor coil.
3. Check the termination of the left hand M contactor coil at terminal M1 on the HC-DVR board.
MTY FAILED TO ACTIVATE (Hydro only)
Description: The MTY input monitors the status of the TY triac and the TY triac driver. When either
fails to activate when expected this fault is generated.
Troubleshooting:
1. Check the starter configuration and programming record.
2. Check motor contactor wiring and voltages at terminal YD1 on the HC-DVR board.
3. The TY triac may have failed open. Replace the HC-DVR board.
MTY FAILED TO DEACTIVATE (Hydro only)
Description: The MTY input monitors the status of the TY triac and the TY triac driver. When either
fails to deactivate when expected this fault is generated.
Troubleshooting:
1. Check the starter configuration and programming record.
2. Check motor contactor wiring and voltages at terminal YD1 on the HC-DVR board.
3. The TY triac may have shorted. Replace the HC-DVR board.
Table 6.1 Status and Error Messages
Scrolling Message - Special Event Message
To Next Page
Loading...
Need help?
General
