130116 v3.2
Operating Instructions SG-EFS 1X4 ZK2/1 8k2
Page 13/15
Polymer Electric
Troubleshooting and remedies
Prerequisite: the Control Unit is connected to the supply voltage and sensor. No
sensor is activated.
Fault display
Possible cause
Remedy
yellow LEDs “K1 ON“
and “K2 ON“ are out
No or incorrect supply voltage
1. Check supply voltage, compare with
type plate
2. Check terminal connections
Incorrect monitoring resistor on sensor
Ä
Connect sensor with monitoring
resistor 8k2
If monitoring resistor is correct: sensor is
faulty
Ä
Replace sensor
No sensor connected
Ä
Connect sensor
Sensor incorrectly connected
Ä
Check terminal connections
Cable break
Ä
Replace sensor
Manual reset: reset switch not actuated
Ä
Actuate reset switch
Manual reset: reset switch sticks
Ä
Replace switches on terminals 5 and 6
Automatic reset: bridge missing
Ä
Connect bridge between terminals 7
and 8
Control Unit is faulty
Ä
Replace Control Unit
Only one LED is on
Incorrect supply voltage
Ä
Check supply voltage, compare with
type plate
Control Unit is faulty
Ä
Replace Control Unit
Fault can still not be detected?
Ä
Contact Mayser-Support: Tel. +49 731 2061-0.
Disposal
The devices produced by Mayser are professional electronic tools exclusively in-
tended for commercial use (so-called B2B devices). Unlike devices mainly used in
private households (B2C), they may not be disposed of at the collection centres of
public sector disposal organisations (e.g. municipal recycling depots). At the end of
their useful life, the devices may be returned to us for disposal.
WEEE reg. no. DE 39141253
Replacement parts
Overall safety endangered
If the sensor and Control Unit are not replaced with original parts from Mayser,
operation of the protective device may be impaired.
Ä
Only use original parts from Mayser.
CAUTION