Siemens POINTEK CLS100 Compact Operating Instructions page 18

Unequal current in red and
black wire
Yellow LED won't come on
or off
Too much current in loop Supply voltage too high Ensure power range equals 12 to
Red LED lights opposite to
the Yellow LED when this
is not meant to happen
Red and Yellow LEDs are
blinking fast
Red and Yellow LEDs are
blinking while switching
Relay contact does not
follow status Red LED
Yellow LED is lit while
probe is not covered
Page EN-16 Pointek CLS100 – QUICK START MANUAL
Loop circuitry is DC Correct loop circuitry
biased w.r.t. ground
Black wire exceeds + 36 Remove cause of voltage on the
V DC against Ground red wire and/or bias
Defective component in Contact distributor
device
33 V DC at all times (10 to 30 V DC
for IS versions)
Incorrect polarity on red Reverse polarity on loop terminals
and black loop terminals
Proper power not Check power source
applied to device
Power range must equal Minimum 12 V DC on the terminals
12 to 33 V DC at all times when the signal current is 20 mA
(10 to 30 V DC for IS (minimum 10 V DC for IS versions)
versions)
Proper power not Check power source
applied to device
Power range must equal Minimum 12 V DC on the terminals
12 to 33 V DC at all times when the signal current is 20 mA
(10 to 30 V DC for IS (minimum 10 V DC for IS versions)
versions)
Proper power not Check power source
applied to device
Power range must equal Minimum 12 V DC on the terminals
12 to 33 V DC at all times when the signal current is 20 mA
(10 to 30 V DC for IS (minimum 10 V DC for IS versions)
versions)
Defective component in Contact distributor
device.
May indicate significant Rotate sensitivity potentiometer
product buildup. further CCW (counter clockwise).
Check sensor tip
7ML19985QJ83