8 Error signals
BU 0750 GB
Technical design subject to change
133
Display
Type of failure
Cause
What to do about it
Group
Details see
P700 / P701
E003
3.0
Overcurrent from power module
FI trips because the I
2
t limit was reached, e.g. fol-
lowing > 1,5 x I
n
for 60s (see also P504)
Avoid sustained overload at the frequency
inverter output
3.1
Overcurrent
from chopper
because the I
2
t limit for the brake chopper (resistor)
was reached (see also P555, P556, P557)
Avoid sustained brake chopper (resistor)
overload
3.2
Derating overcurrent
Monitoring 125%
Derating (power reduction) at f < 2 Hz
125% overcurrent for 50ms
E004
4.0
Module overcurrent
(Brief) error signal from module
Short-circuit or ground fault at inverter out-
put
Use external output choke (motor cable is
too long)
E005
5.0
D.C. link overvoltage
Frequency inverter d.c. link voltage is too high
Reduce recovered energy by providing a
brake resistor
Extend deceleration time (P103)
Except for lifting gear applications the mode
for a delayed disconnection (p108) could be
set
Prolong the period set for quick stopping
(P426)
5.1
Mains overvoltage
The mains voltage is too high
Check mains phases (380V-20% ...
480V+10%), or 200/240V 10% respec-
tively, is any of them too low?
E006
6.0
D.C. link undervoltage
(charging error)
The mains voltage fed to the FI or its d.c. link volt-
age are too low
Check the mains voltage (380V-20% ...
480V+10%), or 200/220V 10% respec-
tively, may be too low
6.1
Mains undervoltage
E007
7.0
Phase failure
One of the three mains phases was or still is inter-
rupted.
Check the mains phases (380V-20% to
480V+10%), or 200/220V 10% resp., is
any of them too low?
All of the three mains phases must be
symmetrical when applied.
OFF
Note:
The display will show OFF when the three mains phases are equally reduced,
that is when a regular disconnection from the mains is effected in the course of
operation.