5
11.01.21 en / 335A
During normal operation failure messages may occur. The messages are
indicated by a flashing sequence of the „Error“ LED.
Fault Indication by Flashing Code
Flashes
Fault
Reason
Failure
recovery
1 x
Overtemperature
on
power unit
Permitted
duty cycle ex-
ceeded
Reduce
duty-cycle
Wait till heat sink
cools down
2 x
Overtemperature
on motor or
broken wire in
thermistor circuit
High duty-cycle
on motor or
broken wire
Decrease
duty-cycle.
Repair wiring
of temperature
sensor
3 x
Short circuit in
thermistor circuit
Squeeze conduit,
defective
soldering point
Check
connection wire,
repair
4 x
Phase failure
Defective fuse
Change fuse
Check
voltage range
5 x
Decrease
phase sequence
Connection
L1, L2, L3
incorrect
Correct connetion
sequence see
application
6 x
Mains frequency
is out of
tolerance
Wrong mains
frequency
Device
not suitable for
the frequency.
Contact
manufacturer.
7 x
Broken ciruit
Cable break
Check wiring
Defective
braking relay
The unit has to
repaired
9 x
Incorrect
internal
temperature
sensor
Defective
component or
temperature
out of range
Check
temp. range
The unit has to
repaired
10 x
RAM defective
Defective
component
The unit has to
repaired
13 x
Overcurrent
on power
semiconductors
Gravitational
start
Prolonging ramp
up time. Set
starting torque
lower. Use
unit with higher
ranges
Motor blocked Remove blockage
14 x
Brake current
to high
Braking current
adjusted over
permitted value
Back off
potentiometer I
Br
15 x
Overcurrent on
ramp
Gravitational
start, ramp time
to short or
starting torque
to high
Prolonging ramp
up time. Set
starting torque
lower. Use
unit with higher
ranges
16 x
Communication
error
internal
Defective
component
The unit has to
repaired
17 x
Overcurrent on
bridging relay
Motor blockage
Remove
blocking
