Dexter Laundry T-300 Operators Manual Installation & Operation Instructions page 93

DRIVE OV
DRIVE OH
8514-300-001 REV PR
Solu on
VFD Over-
Condi on
voltage Fault
Delay
Ac on
Solu on
VFD Overheat
Condi on
Fault
Delay
Ac on
Step 1: Check to make sure the washer
cylinder turns freely by hand. If it turns freely,
con nue to step 2. If it does not, remove the
belt and see if the motor turns freely by hand.
If the motor turns freely, then check for
obstruc ons in the cylinder or check the
bearings. If the motor does not turn freely,
replace the motor. Step 2: Check the motor
wires for a short circuit between leads. If there
are motor leads that have conductors
touching, separate them and insulate them. If
the wires are broken, splice them together or
replace the motor.
Step 3: Check braking resistors to see if they
measure the correct resistance. If a resistor
does not measure the proper value, replace it.
This error is over-voltage on the VF drive
Delay me is 35 seconds.
Stop the machine and clear the cycle. Keep the
door locked un l the machine has stopped
moving and then unlock the door.
Step 1: Measure the supply voltage to the VFD
on the L1, L2 (or N). The supply voltage should
be from 187 to 264 VAC. Also make sure the
supply wires on L1, L2 (or N) are securely
connected.
Step 2: Check the braking resistor connec ons
at the VFD. The terminal screws should be
ght. One of the braking resistor wires should
be connected to terminal B2.
Step 3: Measure each braking resistor
separately to make sure they are the correct
resistance. (200 for 1, 2 and 3 Hp VFD and 160
for 5 Hp and larger VFD).
Step 4: If you have a 240 VAC, high leg voltage
supply, try disconnec ng the high leg. If this
cures the problem, leave the high leg
disconnected, connect a transient voltage
surge suppressor (with some form of filtering)
at the voltage supply panel, connect a line
choke on the high leg or install a VFD filter.
This error is over-hea ng on the VF drive
Delay me is 12 seconds.
Stop the machine and clear the cycle. Keep the
door locked un l the machine has stopped
moving and then unlock the door
93