Hyster R30XMF3 Operating instructions

Hyster H118 (R30XM3) Forklift

AC MOTOR
CONTROLLER
R30XMF3 [A169];
R30XMA3 [A185];
R30XMS3 [E174];
R30XM3 [H118]
PART NO. 4031796 2200 SRM 1466

SAFETY PRECAUTIONS
MAINTENANCE AND REPAIR
• The Service Manuals are updated on a regular basis, but may not reflect recent design changes to the
product. Updated technical service information may be available from your local authorized Hyster®
dealer. Service Manuals provide general guidelines for maintenance and service and are intended for
use by trained and experienced technicians. Failure to properly maintain equipment or to follow in-
structions contained in the Service Manual could result in damage to the products, personal injury,
property damage or death.
• When lifting parts or assemblies, make sure all slings, chains, or cables are correctly fastened, and
that the load being lifted is balanced. Make sure the crane, cables, and chains have the capacity to
support the weight of the load.
• Do not lift heavy parts by hand, use a lifting mechanism.
• Wear safety glasses.
• DISCONNECT THE BATTERY CONNECTOR before doing any maintenance or repair on electric lift
trucks. Disconnect the battery ground cable on internal combustion lift trucks.
• Always use correct blocks to prevent the unit from rolling or falling. See HOW TO PUT THE LIFT
TRUCK ON BLOCKS in the Operating Manual or the Periodic Maintenance section.
• Keep the unit clean and the working area clean and orderly.
• Use the correct tools for the job.
• Keep the tools clean and in good condition.
•Always use HYSTER APPROVED parts when making repairs. Replacement parts must meet or ex-
ceed the specifications of the original equipment manufacturer.
• Make sure all nuts, bolts, snap rings, and other fastening devices are removed before using force to
remove parts.
• Always fasten a DO NOT OPERATE tag to the controls of the unit when making repairs, or if the unit
needs repairs.
•Be sure to follow the WARNING and CAUTION notes in the instructions.
• Gasoline, Liquid Petroleum Gas (LPG), Compressed Natural Gas (CNG), and Diesel fuel are flamma-
ble. Be sure to follow the necessary safety precautions when handling these fuels and when working
on these fuel systems.
• Batteries generate flammable gas when they are being charged. Keep fire and sparks away from the
area. Make sure the area is well ventilated.
NOTE: The following symbols and words indicate safety information in this
manual:
WARNING
Indicates a hazardous situation which, if not avoided, could result in death
or serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor
or moderate injury and property damage.
On the lift truck, the WARNING symbol and word are on orange back-
ground. The CAUTION symbol and word are on yellow background.

©2014 HYSTER COMPANY
TABLE OF CONTENTS
General .....................................................................................................................................................................1
Introduction .........................................................................................................................................................1
Discharging the Capacitors ................................................................................................................................ 1
Parameters .............................................................................................................................................................. 2
Troubleshooting .....................................................................................................................................................13
General .............................................................................................................................................................. 13
Status Codes ......................................................................................................................................................13
Basic Checks ....................................................................................................................................................217
CANbus Test ................................................................................................................................................... 218
Thermal Management .................................................................................................................................... 220
This section is for the following models:
(R30XMF3) [A169];
(R30XMA3) [A185];
(R30XMS3) [E174];
(R30XM3) [H118]
AC Motor Controller Table of Contents
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"THE
QUALITY
KEEPERS"
HYSTER
APPROVED
PARTS

General
INTRODUCTION
Procedures are outlined for controller programming
and troubleshooting.
DISCHARGING THE CAPACITORS
WARNING
DO NOT make repairs or adjustments unless you
have been properly trained and authorized to do
so. Improper repairs and adjustments can create
dangerous operating conditions. DO NOT operate
a lift truck that needs repairs. Report the need for
repairs to your supervisor immediately. If repair is
necessary, attach a DO NOT OPERATE tag on the
steering wheel and disconnect the battery.
Disconnect the battery and allow the capacitors to
discharge before opening any compartment
covers or inspecting or repairing the electrical
system. DO NOT place tools on top of the battery.
If a tool causes a short circuit, the high current
flow from the battery can cause personal injury or
property damage.
Some checks and adjustments are performed with
the battery connected. DO NOT connect the
battery until the procedure instructs you to do so.
Never wear any metallic items on your fingers,
arms, or neck. Metal items can accidentally make
an electrical connection and cause injury.
Before performing any tests or adjustments, block
the lift truck to prevent unexpected movement.
The capacitor in the transistor controller(s) can
hold an electrical charge after the battery is
disconnected. To prevent an electrical shock and
personal injury, discharge the capacitor(s) before
inspecting or repairing any component in the
drive unit compartment. Make certain that the
battery has been disconnected.
DO NOT short across the motor controller
terminals with a screwdriver or jumper wire.
1. To avoid injury and prevent electrical shock,
perform Step 2 through Step 6 to discharge the
capacitors before troubleshooting,
making adjustments or repairs, or connecting
or disconnecting a PC service tool:
2. Turn the key or keyless switch to the OFF
position and DISCONNECT THE BATTERY
by pushing forward on the battery disconnect
lever.
3. Block the lift truck so the drive wheels are off
the floor to prevent lift truck from moving.
4. Remove the electrical compartment cover to
access the lift controller.
NOTE: The lift and traction controllers are wired
parallel. Connecting the resistor across the lift
controller will also discharge capacitors in the
traction controllers if they are properly connected.
To discharge the capacitors in each controller
individually, refer to Periodic Maintenance
8000SRM1472.
5. Discharge the capacitors in the controllers by
connecting a 200-ohm, 2-watt resistor across
the lift controller’s negative (B-) and positive (B
+) terminals. Wait at least 20 seconds to be
sure that the capacitors are fully discharged.
See Figure 1.
6. Remove the resistor from the controller and
reinstall the electrical compartment cover
before returning the lift truck to service.
There are two controllers used for the Order
Selectors. The application of each controller is
based on the truck voltage. The traction controller
manages the CANbus traffic for the truck. In
addition the traction controller has significant I/O
responsibility. the hydraulic coils, horn, back-up
alarm, mast prox sensor, parking brake, and the
traction motor are managed by the traction
controller.
Type DC Battery
Voltage
AC RMS
Current Rating
ACE0 24 320
ACE0 36 280
2200 SRM 1466 General
1

Figure 1. Discharging the Capacitors
Legend for Figure 1
1. B- TERMINAL
2. B+ TERMINAL
3. JUMPER LEADS
4. 200-OHM, 2-WATT RESISTOR
Parameters
A parameter is a measurement or a setting that de-
fines a lift truck function. A specific function pa-
rameter works with other function parameters to
control the operation of the lift truck.
WARNING
The parameter for each function has a value range
so the motor controller can be used on different
models of lift trucks. This variation is needed for
lift trucks of different capacities and operational
needs. Adjustment of a function to the wrong
number value for your lift truck model can cause
the truck to operate differently than normal. Al-
ways test operational characteristics of a lift truck
when operating for the first time.
NOTE: Table 1 shows the factory default setting
and total range for each parameter that is adjusta-
ble by the user.
Parameters can be adjusted through the dash dis-
play. The factory default values listed in Table 1
are the recommended settings for new units. These
settings will give satisfactory performance for most
applications.
WARNING
If any of the parameter values are changed, the
operators must be told the lift truck will operate
differently.
NEVER adjust any of the following parameters
without using the procedures and settings given
in this section.
Parameter Descriptions in this section contain
descriptions for the different parameters. These pa-
rameters can also be accessed using the ZAPI
Handset tool.
Parameters 2200 SRM 1466
2

Table 1. Parameter Values
Parameter Function Range 24V Default
(R30XMS3)
24V/36V Default
(R30XM3/XMA3/
XMF3)
NOTE: Certain lift truck models are not capable of operating at the Max range allowed by the
Dash Display. If a parameter value higher than the truck's ability is entered, the value will
revert to the maximum allowed for that lift truck.
Truck Setup
SERIAL NUMBER Truck serial
number, 11 digits,
alpha-numeric
A-Z or 0-9 Serial Number
assigned at
production
Serial Number
assigned at
production
BATTERY TYPE Sets battery type Flooded or
Maintenance Free
Varies depending
on ordered option
Varies depending
on ordered option
BDI MAX ADJUST Adjusts the
battery voltage
which the truck
software considers
to be "10" BDI
bars. "0 " = lower
voltage to "9" =
higher voltage.
0 to 9 3 3
BDI MIN ADJUST Adjusts the
battery voltage
that would
correspond to "0"
BDI bars. "0 " =
lower voltage to
"9" = higher
voltage.
0 to 9 1 1
BDI ADJUST STARTUP Used to set the
number of BDI
bars which the
display will show
immediately after
rekey based on
battery voltage. "0"
= lowest voltage
setting for a given
number of bars to
"9" = highest
voltage setting for
a given number of
bars
0 to 9 7 7
2200 SRM 1466 Parameters
3

Table 1. Parameter Values (Continued)
Parameter Function Range 24V Default
(R30XMS3)
24V/36V Default
(R30XM3/XMA3/
XMF3)
NOTE: Certain lift truck models are not capable of operating at the Max range allowed by the
Dash Display. If a parameter value higher than the truck's ability is entered, the value will
revert to the maximum allowed for that lift truck.
BDI DELTA RESET Adjusts the change
in battery state-of-
charge required to
reset the BDI back
to 10 bars.
0 to 9 4 4
LIFT INTERRUPT Toggle on or off. If
on, the percentage
of battery
discharge (0-10%
charge remaining)
is set. This limit
determines at
what battery
discharge point the
lift function is
prevented. The lift
interrupt feature
is controlled by the
master CAN I/O
controller and
prevents lift
ON/OFF ON OFF
AUD MOTION ALARM Sets conditions
when audible
alarm will sound
or visual alarm
will flash.
0 to 15 Varies depending
on ordered option
Varies depending
on ordered option
SERVICE REMINDER Sets hour meter
increment for
reminder on dash
display, enter
hours 0 hours will
= off
0 to 65535 hours 0 0
TRUCK INSPECTION Enables the
operator checklist
which is required
to be completed
prior to operating
the truck.
ON/OFF OFF OFF
SPEED UNIT Toggles between
MPH and KPH.
MPH/KPH MPH MPH
Parameters 2200 SRM 1466
4

Table 1. Parameter Values (Continued)
Parameter Function Range 24V Default
(R30XMS3)
24V/36V Default
(R30XM3/XMA3/
XMF3)
NOTE: Certain lift truck models are not capable of operating at the Max range allowed by the
Dash Display. If a parameter value higher than the truck's ability is entered, the value will
revert to the maximum allowed for that lift truck.
TEMP UNIT Toggles between
Farenheit and
Celcius.
°C/°F °F °F
POWER TIME OUT Sets time period
that truck will
remain operational
with foot pedal
switch not
depressed.
1 to 60 minutes 10 10
WIRE GUIDANCE Enables/disables
wire guidance
functionality. If
"off", the "WG
Config" menu is
hidden.
1 = ON
2 = OFF
0 = OFF
Varies depending
on ordered option
Varies depending
on ordered option
RESTORE DEFAULTS
WARNING
Restore Defaults will take
all calibration values to
the factory default values.
Wire guidance and the
proportional valve will
require recalibration. The
Traction, Hoist and RTC
Hall sensors will require
recalibration.
For all Trucks record SET
STEER 0 POS and for
those trucks with wire
guidance record WG REV
OFFSET prior to selecting
Restore Defaults.
Restores all
technician
modifiable
parameters to
factory default
settings.
YES/NO NO NO
2200 SRM 1466 Parameters
5

Table 1. Parameter Values (Continued)
Parameter Function Range 24V Default
(R30XMS3)
24V/36V Default
(R30XM3/XMA3/
XMF3)
NOTE: Certain lift truck models are not capable of operating at the Max range allowed by the
Dash Display. If a parameter value higher than the truck's ability is entered, the value will
revert to the maximum allowed for that lift truck.
Traction Setup
TOP SPEED FWD Sets the top
forward speed of
the truck.
0.1 to 6.5 6 6.5
TOP SPEED REV Sets the top
reverse speed of
the truck.
0.1 to 6.5 6 6.5
ACCEL MODE 1 Percent of
maximum
acceleration.
0 to 100% 60% 60%
ACCEL MODE 2 Percent of
maximum
acceleration.
0 to 100% 80% 80%
ACCEL MODE 3 Percent of
maximum
acceleration.
0 to 100% 80% 80%
ACCEL MODE 4 Percent of
maximum
acceleration.
0 to 100% 100% 100%
AUTO DECEL Sets the maximum
deceleration rate
when the joystick
is released.
0.3 to 10 2.8 2.8
PLUGGING REGEN Determines the
maximum
deceleration rate
when plugging.
0 to 10 1.7 1.7
TRACTION CALIB Starts traction/
throttle calibration
routine.
ON/OFF OFF OFF
Steering Setup
MTS GAIN Sensitivity control
for the steering
stepper motor.
Higher gain
settings make the
steer control more
sensitive, lower
settings make it
less sensitive.
0 to 9 2 2
Parameters 2200 SRM 1466
6

Table 1. Parameter Values (Continued)
Parameter Function Range 24V Default
(R30XMS3)
24V/36V Default
(R30XM3/XMA3/
XMF3)
NOTE: Certain lift truck models are not capable of operating at the Max range allowed by the
Dash Display. If a parameter value higher than the truck's ability is entered, the value will
revert to the maximum allowed for that lift truck.
AUTO-CTR STR CAL Activates the RTC
calibration
program by
pressing Right
Arrow key on
display.
ON/OFF OFF OFF
SET STEER 0 POS
WARNING
If Restore Defaults is
selected from the Dash
menu then SET STEER 0
POS will require
recalibration. Record SET
STEER 0 POS value prior
to selecting restore
defaults.
Fine increments to
center the drive
wheel to track
straight.
Increasing the
value steers truck
more to the right,
decreasing steers
more to the left.
2342 to 2653
in 1mV
increments
2529 2529
MAX CW ANGLE C Coarse angle
adjustment for
max CW steer
angle: 0=decrease
angle, 9=increase
angle
0 to 9 RTC = 2 RTC = 2
MAX CW ANGLE F Fine angle
adjustment for
max CW steer
angle: 0=decrease
angle, 9=increase
angle
0 to 9 RTC = 8
MTS = 3
RTC = 8
MTS = 3
2200 SRM 1466 Parameters
7

Table 1. Parameter Values (Continued)
Parameter Function Range 24V Default
(R30XMS3)
24V/36V Default
(R30XM3/XMA3/
XMF3)
NOTE: Certain lift truck models are not capable of operating at the Max range allowed by the
Dash Display. If a parameter value higher than the truck's ability is entered, the value will
revert to the maximum allowed for that lift truck.
MAX CCW ANGLE C Coarse angle
adjustment for
max CCW steer
angle: 0=decrease
angle, 9=increase
angle
0 to 9 RTC = 2 RTC = 2
MAX CCW ANGLE F Fine angle
adjustment for
max CCW steer
angle: 0=decrease
angle, 9=increase
angle
0 to 9 RTC = 8
MTS = 3
RTC = 8
MTS = 3
Hydraulic Setup
DC MAX LIFT SPD For DC Hoist
trucks this
parameter setting
determines the
hydraulic pump
motor high speed.
0 to 100% N/A 100
DC LIFT ACCEL For DC Hoist
trucks this
parameter setting
determines the
rate of increase of
lifting.
0 to 100% N/A 6.5
DC LIFT DECEL For DC Hoist
trucks this
parameter setting
determines the
rate of increase of
lowering.
0 to 100% N/A 5
AC MAX LIFT SPD For AC Hoist
trucks this
parameter setting
determines the
hydraulic pump
motor high speed.
0 to 100% N/A 36V
R30XM3/XMA3
100
Parameters 2200 SRM 1466
8

Table 1. Parameter Values (Continued)
Parameter Function Range 24V Default
(R30XMS3)
24V/36V Default
(R30XM3/XMA3/
XMF3)
NOTE: Certain lift truck models are not capable of operating at the Max range allowed by the
Dash Display. If a parameter value higher than the truck's ability is entered, the value will
revert to the maximum allowed for that lift truck.
AC LIFT ACCEL For AC Hoist
trucks this
parameter setting
determines the
rate of increase of
lifting.
0 to 100% N/A 36V
R30XM3/XMA3
5
AC LIFT DECEL For AC Hoist
trucks this
parameter setting
determines the
rate of decrease of
lifting.
0 to 100% N/A 36V
R30XM3/XMA3
5
MAX LOWER SPEED Determines the
lower speed.
0 to 100% N/A 24V
R30XM3/XMA3/
XMF3
95.2
36V
R30XM3/XMA3
AC=100
DC=83.5
36V
R30XMF3
83.5
LOWER ACCEL This parameter
setting determines
the rate of increase
of lowering.
0 to 100% N/A 24V/36V
R30XM3/XMA3
AC = 8
DC = 15
24V
R30XMF3
DC = 15
36V
R30XMF3
DC = 15
2200 SRM 1466 Parameters
9

Table 1. Parameter Values (Continued)
Parameter Function Range 24V Default
(R30XMS3)
24V/36V Default
(R30XM3/XMA3/
XMF3)
NOTE: Certain lift truck models are not capable of operating at the Max range allowed by the
Dash Display. If a parameter value higher than the truck's ability is entered, the value will
revert to the maximum allowed for that lift truck.
LOWER DECEL This parameter
setting determines
the rate of
decrease of
lowering.
0 to 100% N/A 24V/36V
R30XM3/XMA3
AC = 5
DC = 8
24V
R30XMF3
DC = 8
36V
R30XMF3
DC = 8
LIFT LIMIT Sets lift limit
height in inches
(measured at top
of forks).
0 to 300 100 100
LIFT LIMIT ENABLE Turns lift limit
functionality on or
off.
ON/OFF Varies depending
on ordered option
Varies depending
on ordered option
LOWER LIMIT Sets lower limit
height in inches
(measured at top
of forks).
0 to 300 26 26
LOWER LIMIT ENABLE Turns lower limit
functionality on or
off.
ON/OFF Varies depending
on ordered option
Varies depending
on ordered option
HOIST CALIB Starts hoist
calibration
routine.
ON/OFF N/A OFF
PROP VALVE CALIB Starts proportional
valve calibration
routine
ON/OFF N/A OFF
Parameters 2200 SRM 1466
10

Table 1. Parameter Values (Continued)
Parameter Function Range 24V Default
(R30XMS3)
24V/36V Default
(R30XM3/XMA3/
XMF3)
NOTE: Certain lift truck models are not capable of operating at the Max range allowed by the
Dash Display. If a parameter value higher than the truck's ability is entered, the value will
revert to the maximum allowed for that lift truck.
Wire Guidance Setup (Not applicable for the R30XMF3 )
FWD ANT FREQ 0=5.2kHz
1=6.2kHz
2=7.0kHz
3=9.1kHz
4=10.0kHz
0 to 4 Varies depending
on ordered option
Varies depending
on ordered option
REV ANT FREQ 0=5.2kHz
1=6.2kHz
2=7.0kHz
3=9.1kHz
4=10.0kHz
0 to 4 Varies depending
on ordered option
Varies depending
on ordered option
WG SLOW SET Toggles between
full speed wire
approach or
automatic
slowdown once
antenna detects
wire is near.
ON/OFF OFF OFF
WG REV OFFSET
WARNING
If Restore Defaults is
selected from the Dash
menu then wire guidance
will require recalibration.
Record WG REV OFFSET
value prior to selecting
restore defaults.
Adjusts the device
wheel angle to
maintain straight
travel, when
traveling forks
leading (reverse
direction).
0 to 5000mV
in 20mV
increments
2540 2540
FWD ANT LAG 0=no lag correction
9=max lag
correction
0 to 9 4 4
FWD ANT LEAD 0=no lead
correction
9=max lead
correction
0 to 9 1 1
FWD ANT ACQ AREA 0=least sensitive
9=most sensitive
0 to 9 6 6
2200 SRM 1466 Parameters
11

Table 1. Parameter Values (Continued)
Parameter Function Range 24V Default
(R30XMS3)
24V/36V Default
(R30XM3/XMA3/
XMF3)
NOTE: Certain lift truck models are not capable of operating at the Max range allowed by the
Dash Display. If a parameter value higher than the truck's ability is entered, the value will
revert to the maximum allowed for that lift truck.
REV ANT LAG 0=no lag correction
9=max lag
correction
0 to 9 4 4
REV ANT LEAD 0=no lead
correction
9=max lead
correction
0 to 9 1 1
REV ANT ACQ AREA 0=least sensitive
9=most sensitive
0 to 9 6 6
FREQUENCY CALIB Toggle switch used
during wire
guidance setup to
use the antennas
to detect non-
standard line
driver frequencies.
ON/OFF OFF OFF
FIELD STR CALIB Toggle switch used
during setup to
calibrate the
antennas.
ON/OFF OFF OFF
WIRE DEPTH FWD Measurement (in
5mm increments)
from the center of
the line driver
wire to the center
of the coil within
the antenna. Coil
is 12mm from the
bottom of the
antenna. 0=30mm
and 9=75mm
0 to 9 8 R30XM3
8
R30XMA3
6
WIRE DEPTH REV Measurement (in
5mm increments)
from the center of
the line driver
wire to the center
of the coil within
the antenna. Coil
is 12mm from the
bottom of the
antenna. 0=30mm
and 9=75mm
0 to 9 7 R30XM3
6
R30XMA3
7
Troubleshooting 2200 SRM 1466
12

Troubleshooting
GENERAL
The controllers are sealed units with no serviceable
components. Troubleshooting is usually limited to
accessing status codes and following the diagnostic
procedures listed in the status code charts.
Use standard testing procedures to verify inputs
and outputs when necessary.
CAUTION
Never attempt to probe through the back of the
connector plugs of the motor controller. The
plugs are special sealed plugs. Probing through
the back of the plugs will destroy the seal and can
cause a short circuit. If a circuit must be tested for
voltage, check for voltage at an amp-type plug, a
switch, or a component. If a circuit is suspect,
check the circuit for continuity from the front (pin
end) of the plug.
Standard probes are too large to be inserted into
the center of the female pins (sockets) of the spe-
cial sealed plugs and can expand the pins. Expan-
ded pins will not provide good connections once
the plug is reconnected. The connectors are sha-
ped to allow the insertion of a flat blade screw-
driver into the connector. After inserting the
screwdriver into the connector, attach probes
with alligator clips to the shank of the screwdriver
to obtain readings. An additional method would
be to use a breakout kit.
If the controller detects an issue, a status code is
displayed on the display panel.
Once the status code number is obtained, follow the
procedures outlined in the status code charts of this
manual to determine the problem.
NOTE: Due to the interaction of the controller with
all lift truck functions, almost any status code or
controller fault could be caused by an internal fail-
ure of the controller. After all other status code pro-
cedures have been followed and no problem is
found, the controller should be replaced as the last
option to correct the problem. A Node shall be
given, indicating which device generated the fault.
Tools and test equipment required are:
• Clip Leads
• Digital Multimeter (20,000 ohms per volt)
• Basic Hand Tools
Check resistance on the proper scale from frame to
power and controller terminals. Resistance of less
than 50,000 ohms can cause misleading symptoms.
The on-board diagnostic system employed on this
lift truck can assist in the troubleshooting process.
Read and be familiar with the instructions for ac-
cessing and using the dash display diagnostic sys-
tem.
Prior to troubleshooting systems and components
on this lift truck, ensure the battery is the correct
voltage and is fully charged. Make sure the battery
connector contacts are clean of corrosions and the
battery polarity within the connector is correct. In-
spect to ensure all fuses are correct and have not
failed. Ensure the key switch is in the ON position
when making voltage checks or checking the opera-
tor of a component.
Many faults noted by lift truck systems are the re-
sult of loose wiring connections and/or broken or
shorted wiring within the lift truck. Begin the trou-
bleshooting process by carefully inspecting the wir-
ing involving the device or devices noted by the on-
board diagnostics system.
STATUS CODES
Make sure the parameter values are correct for
your lift truck to ensure the trouble is not just an
incorrect setting. See function settings to set the
correct parameter values.
The status codes are numbers for malfunction or
lift truck operation that are not correct and that
the motor controller can sense. The display will in-
dicate this code number on the LCD screen.
2200 SRM 1466 Troubleshooting
13

NOTE: There are identifiers to determine which
device generated the code:
Node X = XXXX (12544 Node 3)
Node 2 = Traction
Node 5 = Pump
Node 6 = Steer Master
Node 7 = CAN I/O Master
Node 8 = CAN I/O Slave
Node 11 = Forward Antenna
Node 12 = Reverse Antenna
Node 16 = Display
There is a Steer Master Node and a Steer Slave
Node similar to the CAN I/O unit. The software re-
vision level is noted in the Display menu structure
for the Steer Master and the Steer Slave Nodes.
The Steer Master Node reports the fault codes for
the EPS unit.
The controller senses the following types of mal-
function:
• Input voltages that are too high or too low
• Input voltages in the wrong sequence or
• Correct input voltages that occur at the
wrong time
• Internal software checksum errors
NOTE: A status code indication does not always
mean that there is a malfunction. A temporary op-
eration condition can cause a status code display.
These code numbers are only indicators that may
help diagnose a possible malfunction. A short de-
scription of the different status codes is shown in
Table 3.
The Fault Message charts in this section have a
more complete description of the status code, the
circuit that has generated the input for the status
code, the symptom, and the possible cause.
Table 2. Warning Messages
Display
Message Description
STEER UNDERTEMP Steer controller has indicated internal temperature is lower than
-40°C (-40°F).
STEER OVERTEMP Steer controller has indicated internal temperature exceeds
78°C (172°F).
HOIST CONTROL UNDERTEMP Hoist controller has indicated internal temperature is lower than
-40°C (-40°F).
HOIST CONTROL OVERTEMP Hoist controller has indicated internal temperature exceeds
92°C (198°F).
TRACT UNDERTEMP Traction controller has indicated internal temperature is lower
than -40°C (-40°F).
TRACT OVERTEMP Traction controller has indicated internal temperature exceeds
92°C (198°F).
FOOT SW OPEN The system has detected that the foot switch on pedal is open.
FOOT SW CLOSED The system has detected that the foot switch on pedal is closed.
Troubleshooting 2200 SRM 1466
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