Instruction Manual

Form 925 (08.13) ©SOR Inc.
11/16
Troubleshooting
Sympton/Problem Possible Cause Corrective Action
No current in the loop
No LED’s lit
1. Power supply turned off
2. Improperly wired terminal
block
3. Broken power supply wire
1. Check power supply
source
2. Check terminal block
wiring
3. Check loop wire integrity
Current is greater than 27mA
1. Incorrectly wired circuit
2. Circuit malfunction
1. Check current loop wiring
2. Replace the circuit board
Current is 8mA when
16mA is expected
or
Current is 16mA when
8mA is expected
1. Failsafe Select switch is in
the wrong position
2. Time Delay has not timed
out (unit with DT
accessory only)
3. Differential is applied
(units with AD
accessory only)
1. Set failsafe select switch to
proper position
2. Check time delay switches
and wait for timeout
or Set new timeout
or cycle power (turn off
power, then
turn it back on)
3. Turn DIFFERENTIAL
adjustment to get desired
control
Current is not 8, 16, or 27mA
or within tolerances
1. Load exceeds maximum
working load
1. Check the load and correct
it per
page 7.
NOTE: Agency certi ed units, (FM, CSA, IEC) must be returned to SOR for repairs.