Trane TR170 - Page 30

Inspect for Description
Input power wiring Check for:
•
Loose connections.
•
Proper fusing.
•
Blown fuses.
Memory module
•
Check that the memory module is plugged in correctly.
Motor
•
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.
Output to motor wiring Check for:
•
Loose connections.
•
Switching components in output circuit.
•
Faulty contacts in switch gear.
PROFIBUS option
•
Check that the option is mounted correctly on the control card.
Programming Ensure that frequency converter parameter settings are correct according to:
•
Motor.
•
Application.
•
I/O conguration.
Proper clearance The frequency converter requires top and bottom clearance adequate to ensure proper air ow 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
at,
solid surface.
Vibration
•
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.
Table 4.1 Visual Inspection Check List
Troubleshooting TR150 and TR170 Service Manual
BAS-SVM04B-EN 02/2017 All rights reserved. 29
4
4