Trane TR170 - Ratings; Short Circuit and Overcurrent Trips; DC Voltage Levels

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 o the IGBTs
individually when the short-circuit current exceeds the permitted value (Alarm 16 Trip Lock).
1.9.2 DC Voltage Levels
200–240 V AC 380–480 V AC 525–600 V AC
H1–H5 H6–H8 H1–H5
I2–I3–I4
H6–H8
I6–I8
H6–H10
Inrush circuit enabled
Inrush circuit disabled 202 184 314 372 532
Undervoltage 202 184 314 372 532
Undervoltage re-enable 202+15 184+16 314+30 372+24 532+20
Overvoltage 410 412 800 800 976
Overvoltage re-enable 410-15 412-16 800-30 800-24 976-20
IT Grid Turn on 410+25 412+25 800+35 800+35 976+35
Table 1.8 DC Voltage Levels
Introduction TR150 and TR170 Service Manual
BAS-SVM04B-EN 02/2017 All rights reserved. 17
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