Description of Fault
A CATALYST Drive Fault Alarm is generated when the variable frequency drive (VFD) experiences a fault. An alarm will be annunciated following a 5-minute delay (adjustable). The exact nature of the drive fault will be annunciated through the Drive Fault point. During a Drive Fault, the fan will remain non-operational until the drive fault is cleared. The onsite Drive manual may be used as a reference in diagnosing and resolving the fault.
A CATALYST Drive Fault Alarm will automatically reset when the Drive Fault is cleared remotely through the eIQ Platform or locally at the drive.
Possible Causes
A CATALYST Drive Fault is typically caused by:
- Protective measures to prevent drive or unitary damage.
- Necessary unitary adjustments.
- Mechanical failure.
- Drive errors.
Troubleshooting
From eIQ Platform
- On the eIQ Platform, navigate to the Settings page of the unit and locate the Drive settings box.
- Click the Reset Drive button.
- A Reset Drive box will appear.
- Enter “1212” in the Value box.
- Click Ok.
- Wait for a response from the drive.
- Monitor the Drive Status message in the Drive settings box.
- If the Drive Status reads Normal, monitor the unit for any recurring issues.
- If the Drive Status continues to show a fault or returns to fault, a technician will need to investigate the equipment to resolve the issue.
- The Drive Reset on the eIQ Platform should only be performed once. Any continued or recurring fault should be assessed by a technician.
On Site
- Access the variable frequency drive typically located in the blower compartment of the Unit.
- Read the face of the drive to identify the fault code being registered.
- Refer to the onsite drive manual for troubleshooting suggestions regarding the fault code.
- Make any necessary adjustments or repairs in regards to the fault and troubleshooting suggestions.
- If the fault has cleared, test the responsive of the fan by placing the Service Switch in any of the “Fan 100%” positions.