Service manual

1.9 Ratings Tables
1.9.1 Short Circuit and Over-current Trips
The frequency converter is protected against short circuits
with current measurement in each of the three motor
phases or in the DC link. A short circuit between two
output phases causes an over current 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
200-240 V AC 380-480 V AC 525-600 V AC
H1–H5 H6–H8 H1–H5
I2–I3–I4
H6–H8
I5–I8
H6–H10
Inrush circuit enabled
Inrush circuit disabled 202 184 314 372 532
Under voltage 202 184 314 372 532
Under voltage re-enable 202+15 184+16 314+30 372+24 532+20
Over voltage 410 412 800 800 976
Over voltage 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 1.15 DC Voltage Levels
Introduction
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HVAC Basic Drive Service Manual
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