NORD Drivesystems BU0750 - Manual (Page 134)

NORDAC SK 750E Manual
134 Subject to technical amendments BU 0750 GB-3311
Display Fault Cause
 Remedy Group Details in
P700 / P701
E003 3.0 Inverter overcurrent I
2
t limit has triggered e.g.. > 1.5 x I
n
for 60s (see
also P504)

Continuous overload at inverter output
3.1
Overcurrent, chopper
I
2
t limit for braking resistance has triggered
(please also note P555, P556, P557)

Avoid overcurrent in brake resistance
3.2 Overcurrent derating
Monitoring 125% Derating (power reduction) at f < 2 Hz

125% overcurrent for 50ms
 for fan drives: enable flying start (P520)
E004 4.0 Overcurrent module Error signal from module (short duration)

Short circuit or earthing at FI output
 Use external output choke (motor cable is
too long)
E005 5.0
Link circuit overvoltage
DC link voltage is too high
 Reduce energy return by means of a braking
resistance
 Extend braking time (P103)
 If necessary, set switch-off mode (P108) with
delay (not for lifting equipment)
 Extend emergency stop time (P426)
5.1 Mains overvoltage Mains voltage is too high
 Please check (380V-20% ... 480V+10%), or
200/240V

10%
E006 6.0 Link circuit undervoltage
(Charging error)
Inverter mains/link voltage too low
 Check mains voltage (380V-20% ...
480V+10%), or 200/240V

10% 6.1 Mains undervoltage
E007 7.0 Mains phase error One of the three mains input phases was or is
interrupted.
 Check mains phases (380V-20% ...
480V+10%), or 200/240V

10%
 All three mains phases must be symmetrical.
OFF Note: OFF appears in the display when the three mains phases are uniformly
reduced, i.e. when a normal mains switch off occurs during operation.