Upright SL20 Series User Manual

Page 4-3
Troubleshooting - 4.3 - Upright Motor Controller Diagnostics / AdjustmentProcedures
SL20
4.3 U
PRIGHT
M
OTOR
C
ONTROLLER
D
IAGNOSTICS
Batteries must be fully chargesd before troubleshooting.
Check/Repair all connections before replacing any components
Figure 4-1:
Motor Controller
Table 4-1:
LED Fault Codes
Flash Code Status Corrective Action
LED on The controller is operational. None.
LED off There is no power to the controller. The fault is internal. Replace the controller.
2Flash
Procedural fault. Lift, drive, or steer switch is engaged at
startup, or lift and steer are attempted at the same time.
Turn the chassis key switch to off. Make sure that the control handle and steering
switch are in neutral. Turn Chassis key switch on.
3 Flash Permanently low power output from M2 t.erminal Replace the controller.
4 Flash Permanently high power output at M2 terminal.
Check/Replace motor contact.
Check/Replace motor.
5Flash
Power output at M2 terminal does not match the position
of the control handle (i.e. High output when handle is in
neutral, or low output when movement is attempted).
Check/Replace motor contact.
Check/Replace controller.
Check/Replace motor
6 Flash Control handle fault. Check/Replace control handle
7Flash
Battery voltage fault. Voltage has dropped below 12 volts
or exceeded 45 volts
Turn Chassis Key Switch off. Make sure that the control handle and steering switch
are in neutrol. Turn Chassis Key Switch on. Drive slowly to charging station.
8Flash
Thermal fault. Heat sink temperature has exceeded 80
degrees Celsius.
Automatically clears when controller cools.
LED Indicator
M2 Terminal

Upright SL20 Series Specifications

General

Brand	Upright
Model	SL20 Series
Category	Lifting Systems
Language	English