Troubleshooting - Siemens POINTEK CLS100 Compact Operating Instructions

Troubleshooting

Stainless Steel Process Connection (Integral Cable
or Enclosure Version), Intrinsically Safe
Symptom
Green LED off
Green LED off, with proper
supply
Green LED on and Yellow
LED on while not
responding to product
and/or adjustment
Hysteresis region too
great
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
Page EN-14 Pointek CLS100 – QUICK START MANUAL
Cause
Proper power not applied Check power source
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
Proper power not applied Check power source
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 applied Check power source.
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)
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
Action
7ML19985QJ83