Issue:
How to manually test a Danfoss TR1 Drive.
Resolution:
MAKE SURE TO USE PROPER PERSONNEL PROTECTION EQUIPMENT (PPE) WHEN HANDLING LIVE POWERED EQUIPMENT.
TOOL REQUIRED: Digital Multimeter and Amp meter (clamp).
To test the drive follow the steps below:
- Turn off chiller power.
- Remove motor lead from the drive.
- Reconnect power to the chiller.
- On the drive press "Quick Menu" and "+" sign simultaneously.
- Verify that the drive has the correct parameter settings, see "wave45716" for the correct drive configuration.
- Go to parameter "PAR 002" and change from 0 to 1 (manual operation)
- Go to parameter "PAR 003" and set to 30 Hz.
- Press "Quick Menu" and go to "FR" screen.
- Press "Start" on the drive.
- Measure drive output voltages phase to phase, and phase to ground. If the voltages are equal then the drive is good.
(For example for 460 volt units at 30Hz, voltages between phase should be 265V, 265V, 265V) - Stop the drive and set "PAR 002" back to 0, and "PAR 003" also back to 0.
To test the motor:
- Re-connect the motor leads removed on step 2 above and continue with the rest of the procedure, on step 7 set the value to 60Hz and make sure to check current in all 3 legs of the motor and compare current draw with nameplate data.
Changes:
- Initial Release 04/16
- update 20160713
Products Affected:
- CGAM
- RTAC
- RTUD
Facts:
A good operating VFD-drive will provide a balanced output voltage between phases, and between phase to ground.
Document Identifier: DOC-115422
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.