PERLAN AUT-2
21
Fehlerbeseitigung / Fault clearance
If the safety functions recognize a fault, the controller changes to the fault state.
In this case the driver block and the safety relay are deactivated first.
A fault state is indicated by flashing codes of the two LEDs on the controller:
First the red LED flashes rapidly, then it lights up continuously for approx. 20 seconds. During these 20 seconds
the green LED flashes in accordance with the fault code x times. The cycle repeats until the user resets the fault.
Example: Green LED flashes 4 times, i.e. Fault code 4. This corresponds to a defective oscillator.
Red LED:
Green LED
The following system states have been defined for the fault recognition:
Fault
code
Name
Description
Fault elimination
0
System OK
No fault
1
Unknown fault
Unknown cause of fault
X
Switch mains voltage off/on.
X
Carry out a reset as described in
Chapter 16.2 .
X
Replace the controller if neces-
sary.
2
Self-test – several faults
The self-test has recognised several faults
4
Self-test – oscillator fault
The self-test has recognised a defective
oscillator
X
Replace the controller.
5
Self-test – relay defective
The self-test has recognised a defective
relay
6
Self-test – driver defective
The self-test has recognised a defective
driver
7
Self-test – current measure-
ment defective
The current measurement does not func-
tion properly
X
Switch mains voltage off/on.
X
Carry out a reset as described in
Chapter 16.2 .
X
Replace the motor and/or con-
troller if necessary.
8
Self-test – driver fault recog-
nition defective
The power driver no longer outputs a fault
message
9
Hardware – encoder fault
The encoder is not connected correctly or
is defective
X
Check the encoder connection.
X
Replace the motor or controller.
10
Hardware – voltage impos-
sible
The supply voltage lies outside the per-
missible range
X
Replace the power pack.
X
Replace the controller if neces-
sary.
11
Memory – RAM defective
A defect has been recognised in the RAM
X
Replace the controller.
12
Memory – ROM defective
The programme memory has been
changed or is defective
13
Memory – EEPROM defec-
tive
The data memory is defective
