Dc Link Capacitance; Faults And Alarms - Danfoss VACON NX FI6 Operating Manual

Operating Guide | VACON® NX Inverters FI4-FI8

12.9.3 DC Link Capacitance

Table 37: DC Link Capacitance
Structure
FI4 0003–0007
FI4 0009–0012
FI6
FI7
FI8

12.10 Faults and Alarms

12.10.1 Fault 1 - Overcurrent, Subcode S1- Hardware trip
Cause
There is too high a current (>4*I
• a sudden heavy load increase
• a short circuit in the motor cables
• the motor is not the correct type
Troubleshooting
• Do a check of the loading.
• Do a check of the motor.
• Do a check of the cables and connections.
• Make an identification run.
12.10.2 Fault 1 - Overcurrent, Subcode S3 - Current limit controller supervision
Cause
There is too high a current (>4*I
• a sudden heavy load increase
• a short circuit in the motor cables
• the motor is not the correct type
Troubleshooting
• Do a check of the loading.
• Do a check of the motor.
• Do a check of the cables and connections.
• Make an identification run.
126 | Danfoss A/S © 2019.07
NXI_5 / mF
165
235
1000
1650
3300
) in the motor cable. Its cause can be 1 of the following:
H
) in the motor cable. Its cause can be 1 of the following:
H
Specifications
NXI_ 6 / mF
–
500
900
1800
AQ299433367205en-000101 / DPD00908