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Operating Instructions
Chapter
8
miniTwin2
8013482/YT85/2016-02-23
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
63
Subject to change without notice
Fault diagnosis
Display
Possible cause
Rectification of the error
Red
ERR
Blue
1
Blue
2
Blue
3
Blue
4
Blue
5
Operating voltage
too low
Check the supply voltage and the power
supply. If necessary, replace defective
components.
Red
ERR
Blue
1
Blue
2
Blue
3
Blue
4
Blue
5
Interference by
ambient light
Check the distance from reflective
surfaces (see 4.1.2 on page 25) or from
other safety light curtains (see 4.1.3 on
page 26). If necessary, fit non-reflective
partition walls.
Red
ERR
Blue
1
Blue
2
Blue
3
Blue
4
Blue
5
System error
Switch the voltage supply for the
miniTwin2 off and back on again
(renewed power-up).
If the indication also illuminates on
renewed power-up during the start-up
phase, replace the device.
If the indication illuminates in operation,
contact SICK support.
White
COM Communication
error between two
Twin Sticks
Check the alignment of the two Twin
Sticks.
Or, if you have replaced one Twin Stick:
Switch the voltage supply for both Twin
Sticks off and back on again.
Red
ERR
Orange
EDM
EDM error
Check the contactors and their wiring,
eliminate any wiring errors, if necessary.
Red
ERR
Orange
EDM
Orange
RES
Error in the
configuration of
EDM or Reset or
in the cabling for
pin 2
Repeat the configuration of EDM or
Reset.
Or:
Check the cabling of pin 2 (see 5.3 on
page 47).
Orange
EDM
Orange
RES
EDM or Reset not
yet configured
Switch on the relay or the contactor
connected.
Or:
Press the connected reset button
(see 6.5 on page 55).
Or:
Check the cabling of pin 2 (see 5.3 on
page 47).