Group 19, Motor Controls
SM 765, Dec ’06 CONTROL TROUBLESHOOTING • 19-3-5
Fault
Code
Fault Name Fault Description Control Troubleshooting
Action
Required
60 "CAPACI-
TOR
CHARGE"
Power Capacitor
Voltage does not
increase when the
key is turned ON;
failure in power
section, or in
Logic PCB, or in
driver PCB, or in
the motor MAS-
TER
• When key is switched on, the controller
tries to charge the capacitors through a
power resistor, and check if the capacitor
is charged (1/2 battery volts) within a
timeout. If they do not charge, an fault is
signaled; the line contactor does not
close.
• The charging resistor is open
• The charging circuit has a failure
• There is a problem in the power section.
• Possible Motor connection open.
61 " HIGH
TEMPERA-
TURE"
Warning: Master
or Slave or both
temperature higher
that 75 degrees C
MASTER • Temperature of control is greater than
75°C. Maximum current reduced propor-
tionally to the temperature increase. At
100°C the maximum current of both con-
trols is reduced to zero.
65 "MOTOR
TC START"
Warning: Right or
left or both
motors tempera-
ture high (over
Adj #4)
MASTER
or SLAVE
• Right or left or both drive motors analog
temperature sensor is greater than the
temperature set in ADJUSTMENT #4
(130°C) in the ADJUSTMET submenu.
• When this fault occurs. Maximum cur-
rent is reduced to half and maximum
speed is reduced to 60Hz.
• If it happens when the motor is cold,
check the wring. If all is ok,
Check tempera-
ture shown on
handset in tester
mode
Replace con-
troller
66 "BATTERY
LOW"
Warning: Battery
charge level below
20%
MASTER • When battery level reaches 20% or less
or (10% on the dash display), the current
level for the drive motors is reduced to
50% of the programmed level and the lift
function is locked out.
71 "MOTOR
SHUT-
DOWN"
Warning: Right or
left or both motors
temp. are very
high (over
MOTOR SHUT-
DOWN param.)
MASTER This fault occurs when the right or left or both
motor temperature switches are open (digital
sensor), or if the analog sensor temperature
overtakes the cut off level.
The cut off level is adjusted with the MOTOR
SHUTDOWN parameter (145°C) in the
ADJUSTMENT submenu.
If this fault occurs, maximum current is
reduced to zero and the motor is stopped.
If the shutdown occurs when the motor is cold
check the wiring. If wiring is ok
Replace con-
troller
72 "MOTOR
LOCKED"
Drive motor
locked up
MASTER • After 15 seconds the motor stalled with
maximum current, controller reduces
maximum current to 50%.
• Check if Line Contactor is pulled in.
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