Ratings; Short Circuit And Overcurrent Trips; Dc Voltage Levels - Trane TR150 Service Manual

Introduction

1.9 Ratings

1.9.1 Short Circuit and Overcurrent Trips

The frequency converter is protected against short circuits with current measurement in each of the 3 motor phases or in
the DC link. A short circuit between 2 output phases causes an overcurrent in the inverter. The inverter turns off the IGBTs
individually when the short-circuit current exceeds the permitted value (Alarm 16 Trip Lock).

1.9.2 DC Voltage Levels

H1–H5
Inrush circuit enabled
Inrush circuit disabled 202
Undervoltage 202
Undervoltage re-enable 202+15
Overvoltage 410
Overvoltage re-enable 410-15
IT Grid Turn on 410+25
Table 1.8 DC Voltage Levels
BAS-SVM04B-EN
TR150 and TR170 Service Manual
200–240 V AC
H6–H8 H1–H5
I2–I3–I4
184 314
184 314
184+16 314+30
412 800
412-16 800-30
412+25 800+35
02/2017 All rights reserved.
380–480 V AC
H6–H8 H6–H10
I6–I8
372 532
372 532
372+24 532+20
800 976
800-24 976-20
800+35 976+35
1 1
525–600 V AC
17