Trane TR150 Service Manual page 30

Troubleshooting
Inspect for
Input power wiring
Memory module
Motor
Output to motor wiring
PROFIBUS option
Programming
Proper clearance
Vibration
Table 4.1 Visual Inspection Check List
BAS-SVM04B-EN
TR150 and TR170 Service Manual
Description
Check for:
•
Loose connections.
•
Proper fusing.
•
Blown fuses.
•
Check that the memory module is plugged in correctly.
•
Check nameplate ratings of the motor.
•
Ensure that motor ratings coincide with frequency converters.
•
Ensure that the frequency converter motor parameters (parameter 1-20 Motor Power to
parameter 1-25 Motor Nominal Speed) are set according to motor ratings.
Check for:
•
Loose connections.
•
Switching components in output circuit.
•
Faulty contacts in switch gear.
•
Check that the option is mounted correctly on the control card.
Ensure that frequency converter parameter settings are correct according to:
•
Motor.
•
Application.
•
I/O configuration.
The frequency converter requires top and bottom clearance adequate to ensure proper air flow for
cooling in accordance with the frequency converter size. When the heat sink is exposed at the rear of
the frequency converter, mount the frequency converter on a flat, solid surface.
•
Check for exposure to an unusual amount of vibration.
•
When the frequency converter experiences a high level of vibration, ensure solid mounting or use
shock mounts.
02/2017 All rights reserved.
4 4
29