Section VIII - Power$ync II™ Operation
MOTOR OVERLOAD
The control monitors the status of the main motor and fan motor overloads. Should one of the overloads detect an amp draw that is too high, it will shut the compressor down and the control will log the event.
CONTACTOR WELDED
The control monitors the status of the motor starters during compressor operation. If the control sends a signal to the starter to disengage and it does not receive confirmation of this, is will trip an alarm and log this message. This may indicate a failed contactor or it may indicate a fault in the wiring to the auxiliary contacts.
WYE CONTACTOR NOT CLOSED
This message will be logged if the control sends a start signal to the
M1 AUX CONTACT OPENED
This message will be logged if the controller detected that the auxiliary contacts on the main contactor opened up, when they should be closed. This could indicate a loose wire, or chattering contactor.
WYE AUX CONTACT CLOSED
This message is logged in
CONTACTOR FAILURE
This message will be logged if the control sends a start signal to the main and/or fan motor starter and fails to receive confirmation that the contactor engaged.
COMM TO RELAY BD FAILS
This indicates that communication between the microprocessor board and the relay board has been interrupted.
PKG DISCHARGE RTD FAILURE
The package discharge RTD is the temperature probe between the compressor package and the system lines. The control will log this message if it fails to receive a valid signal from this probe.
Quincy Compressor® - QSD™ | 67 |
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