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
to device
Power range must equal
12 to 33 V DC at all times
(10 to 30 V DC for IS
versions)
Defective component in
device
Proper power not applied
to device.
Power range must equal
12 to 33 V DC at all times
(10 to 30 V DC for IS
versions)
Proper power not applied
to device.
Power range must equal
12 to 33 V DC at all times
(10 to 30 V DC for IS
versions)
Loop circuitry is DC
biased w.r.t. ground
Black wire exceeds + 36
V DC against Ground
Defective component in
device
Incorrect polarity on red
and black loop terminals
Action
Check power source
Minimum 12 V DC on the terminals
when the signal current is 20 mA
(minimum 10 V DC for IS versions)
Contact distributor
Check power source
Minimum 12 V DC on the terminals
when the signal current is 20 mA
(minimum 10 V DC for IS versions)
Check power source.
Minimum 12 V DC on the terminals
when the signal current is 20 mA
(minimum 10 V DC for IS versions)
Correct loop circuitry
Remove cause of voltage on the
red wire and/or bias
Contact distributor
33 V DC at all times (10 to 30 V DC
for IS versions)
Reverse polarity on loop terminals
7ML19985QJ83