JORDAN CONTROLS SM-1715, Instruction Manual

Page: 12 / 24

12
Troubleshooting Guide
TROUBLE POSSIBLE CAUSE REMEDY
a. No power to actuator a. Check source, fuses, wiring
b. Motor overheated and internal
thermal switch tripped (single phase
AC motors only)
b. Let motor cool and determine why
overheating occurred (such as,
excessive duty cycle or ambient
temperature)
c. Motor burned out
c. Replace motor and determine
cause of failure
d. Motor drag brake improperly
adjusted
d. Adjust as detailed on page 20
e. Motor drag brake defective e. Replace drag brake
f. Both end of travel switches open or
one open and one defective f. Adjust switch settings or replace
defective switch
g. Actuator output shaft stalled
g. Check drive load for mechanical
jam and correct cause
h. Defective motor run capacitor h. Replace capacitor (AC models)
i. Load exceeds actuator torque rating
i. Reduce load or replace actuator with
one with appropriate torque rating
j. Power applied to CW & CCW
rotation at same time
j. Correct power input problem
k. Amplifier defective k. Replace amplifier
l. Amplifier is in Loss of Signal
l. Check command signal to verify
signal greater than 3.8 mA is present
m. Amplifier deadband is too wide m. Reduce deadband setting
a. Power applied to CW & CCW
rotation at the same time
a. Correct power input problem
b. Damaged power gearing b. Repair gearing
c. Defective motor run capacitor c. Replace capacitor
d. Motor drag brake d. Adjust or replace as required
Motor runs, output shaft does not
rotate
a. Defective power gearing a. Repair gearing
a. Switch wired wrong or is defective a. Correct wiring or replace switch
b. Motor phased incorrectly b. Correct wiring
a. Motor drag brake improperly
adjusted
a. Adjust as detailed on page 20
b. Motor drag brake defective b. Replace drag brake
a. Power still on a. Remove power
b. Load is jammed and motor drag
brake slips
b. Remove jammed load
c. Drag brake missing or improperly
adjusted.
c. Replace drag brake
Handcrank does not move
output shaft
Motor does not operate
Motor hums but does not run
Motor does not shut off at limit switch
Actuator backdrives when power is
removed