SICK MPS-G

9 Troubleshooting
Table 12: Possible error displays via the LEDs
LED/fault pattern / Fault
pattern
Cause Measures
Green LED does not light
up
No voltage or voltage below the
limit values
Check the power supply,
check all electrical connections
(cables and plug connections)
LED 1 + LED 3: Quick flash‐
ing
During a teach attempt outside
the detection range, no end
point is applied
Bring pistons into the detection
range of the sensor
If no or only one end point is
found during Dynamic Teach, no
end points are applied
Adjust the position so that two
end points are found
Sensor position is impre‐
cise
Mounting position unfavorable Position sensor head as rec‐
ommended in the operating
instructions and run voltage
reset
Sensor does not find
switching points in
Dynamic Pilot / does not
switch
Traversing speed of the object is
insufficient
Increase traversing speed of the
piston or deactivate Dynamic
Pilot and manually teach in
switching points
Switching points are lost Sensor was not yet completely
taught in to drive
Perform several strokes (>5)
and reset switching points
9 TROUBLESHOOTING
48
O P E R A T I N G I N S T R U C T I O N S | MPS-G with 2/3 switching points and IO-Link (up to 8 switching points) 8028195/2022-11-30 | SICK
Subject to change without notice