WARNING! Make sure that only qualified
personnel perform inspection, troubleshooting
and part replacement.
OPERATING ISSUE
CAUSES
Machine not
powering on.
Film carriage
malfunctioning.
Turntable is
malfunctioning.
PAGE 13 OF 40
TROUBLESHOOTING
Main power is turned off.
Machine not plugged into 120VAC
outlet.
Power supply faulty.
Internal battery not charged.
Film carriage foot engaged.
FILM CARRIAGE SPEED dial not set high
enough.
Resistance of potentiometer not equal
to 5K_ across.
The carriage limit switch lever arm is
obstructed.
Microcontroller card inside electrical
enclosure not turned on.
Turntable speed potentiometer dial
not set high enough.
Resistance of potentiometer not equal
to 5K_ across.
Microcontroller card inside electrical
enclosure not turned on.
The turntable motor is not running.
CAUTION! Disconnect all power, including
external control power that may be present,
before servicing the frequency drive
controllers. WAIT for three (3) minutes for
the DC bus capacitors to discharge. The
frequency drive controller's display and/or LEDs
are not accurate indicators of the absence of
DC bus voltage.
RECOMMENDATIONS
Check that power is going to the scale. Verify that
switch is turned on.
Verify the voltage going to the scale matches
the power supply labels on the power module or
scale.
Remove obstruction from Film Carriage foot.
Adjust potentiometer towards 100% to set speed.
Tighten wiring, replace dial if necessary.
Remove obstruction and/or clean limit switch
head.
Check and switch on the main circuit breaker.
Adjust potentiometer towards 100% to set speed.
Tighten wiring, replace dial if necessary.
Check and switch on main circuit breaker.
Tighten or replace motor wiring as necessary.
Check turntable for mechanical restrictions.
Replace microcontroller or turntable output relay.
1-800-295-5510
uline.com
0321 IH-7208