™
Operation and Troubleshooting
Introduction
The CANplus™600 (CP600™) control panel is an
economical platform to monitor and control electronically
governed diesel engines. Graphical gauge pages or a single
large analog gauge are displayed on the 4.25” diagonal
LCD. Virtually any SAE J1939 parameter reported by the
ECU (Engine Control Unit) can be displayed including RPM,
coolant temperature, oil pressure, engine hours, voltage and
diagnostic codes. The trans-reflective, backlit display is
clearly readable in both bright sunlight as well as total
darkness and housed in a rugged IP67 rated housing.
Current alarm conditions are displayed in plain language on
popup messages and can be viewed in the alarm list.
Various diagnostic screens allow detailed investigation of the
CANbus data stream. By accessing the Configuration Menu,
users can customize displayed data to show metric or US
units, display language and various other parameters such
as the full-scale reading of gauges.
™
600 Control Panel
Button 1
Analog Gauge
Pages
Repeated presses
cycle through four
pages of analog
gauges (16 total).
Five buttons access a context dependent button bar when any
button from 1 to 4 is pressed. The graphical menu structure
uses easily understood icons to indicate the button’s current
function. After 5 seconds of inactivity the button bar
disappears.
Button 2 Button 3 Button 4 Button 5
Digital Gauge
Pages
Repeated presses
cycle through four
pages of digital
gauges (16 total).
Single Analog
Gauge
Repeated presses
cycle through
various available
analog gauges.
Active Alarm Page
Displays active
alarms including a
plain language
description.
Gauge Adjust
Allows configuring
the parameters
used by gauge
pages.
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CANplus, CP600, CANplus logo and LOFA logo are trademarks of LOFA Industries, Inc.
600 Control Panel Operation and Troubleshooting
Note
Most problems with electronically controlled engines can be pinpointed via ECU diagnostic
messages. Use the display or ECU diagnostic tool to view fault codes.
All engine state information and diagnostic codes
displayed by the CANplus display are provided via the CANbus.
Throttle Control
The standard ramp throttle uses a momentary rocker switch to adjust the integral throttle control. All throttle
commands are sent directly to the engine using CANbus throttle control.
Note
Throttle control requires CANbus throttling to be enabled in the ECU.
CANbus throttling is also identified as Torque Speed Control and TSC1.
Rotary potentiometers are available for ECUs that do not support CANbus throttle control.
Other throttle options include digital rotary hand throttle, two-state throttle rocker switch (idle/run) or threestate throttle rocker switch (idle/intermediate/run). The three-state throttle rocker switch can be used in
conjunction with the digital rotary hand throttle to adjust the intermediate speed.
Service Timers
The CP600 panel provides sixteen (16) service timers to alert the operator to needed maintenance. The time
interval for each of the timers can be adjusted in 10 hour increments. A popup message is displayed after
the display self test if a timer has expired alerting the user that service is required. The popup message
continues to be displayed at power up until the timer is disabled or reset.
Telemetry Option
The optional telemetry system provides a variety of features to protect and support your equipment
investment. Remote monitoring can alert maintenance requirements, operational problems, improper
operation and theft. The Web-browser interface allows monitoring an entire fleet of equipment in a central
location.
LED Option
Four optional bright LEDs indicate Power, Preheat, Stop and Warning status. These LEDs are controlled
directly by the ECU.
Warning
When replacement parts are required, LOFA Industries recommends using replacement parts
supplied by LOFA or parts with equivalent specifications.
Failure to heed this warning could lead to premature failure,
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product damage, personal injury or death.
600 Control Panel Operation and Troubleshooting
Important Safety Information
The warnings in this publication are not all inclusive.
LOFA Industries cannot anticipate every potential hazard.
Appropriate safety rules and precautions should be followed with any tool,
work method or operating procedure.
Improper procedures, tools and materials may cause damage or
make the equipment unsafe to operate.
Only persons with appropriate training, skills and tools should perform these functions.
Improper operation, maintenance or repair of this product can be
dangerous and may result in injury or death.
Do not operate or perform any maintenance or repair on this product until all operation,
maintenance and repair information is read and understood.
The information, specifications and illustrations in this publication are based on information
available at the time of publication.
All items are subject to change at any time without notice.
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600 Control Panel Operation and Troubleshooting
Operation
Turning the control system key to the run position
energizes the ECU and displays a start-up screen
while the display performs a self test. If the display
beeps for longer than 1 second, it indicates a self
test fault. Users can attempt to rectify the fault by
restoring factory defaults (see Configuration Menu
for details). Contact LOFA Industries for assistance if
the fault persists.
After the start-up screen disappears, the display
shows readings on its virtual gauges. Initially the
analog gauges are displayed but the display uses
the screen last displayed on subsequent startups (see
Preferred Screen Store for details).
If the ECU is preheating when the key switch is turned to the run position, the optional Preheat LED is
illuminated. Preheat time varies with atmospheric and engine conditions. After waiting for the Preheat LED to
extinguish, the engine is cranked by turning and holding the key switch in the start position until the engine
starts.
Note
The ECU will not preheat unless conditions warrant. If necessary, starting the engine may be
attempted by turning the key to the start position without waiting for preheat to expire.
The key switch is spring loaded to return automatically to the run position when released. The key switch is
equipped with a mechanical start locking device. An attempt to re-crank the engine can only be made by
turning the key switch to the off position to reset the start locking mechanism.
CANplus Display
Soft buttons simplify the operator interface by displaying a button bar above the buttons when any of the first
4 buttons (buttons 1 to 4, starting from the left) are pressed. Icons on the button bar representing the current
function of each button. The button bar disappears after 5 seconds if no further buttons are pressed.
Note
Different software versions may have slightly different displays.
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600 Control Panel Operation and Troubleshooting
Analog Gauge Pages
Analog Gauge Pages provide four independent pages of analog gauges. To enable Analog Gauge Pages,
press any of the first 4 buttons to show the top level button bar and then press button 1 . Alternate
pages are selected by repeated pressing of button 1. The four standard gauge pages are shown below.
Note
Engine Hours are displayed as a digital value even on Analog Gauge Pages.
All 16 gauges may be configured by the user to create an application-specific view of CANbus data.
Gauges are changed via Adjust Mode, accessed by pressing button 5 when the button bar is visible.
In the adjust mode a new button bar is displayed identifying
the new button functions. Button 1 corresponds to
the upper left gauge, button 2 to the upper right
gauge, button 3 to the bottom left gauge and
button 4 to the bottom right gauge. Successive
presses of any of the buttons selects a different parameter
to display for the corresponding gauge. Adjust Mode is
exited by pressing button 5 and configuration is
stored even when power is removed.
Note
Gauge selections are limited to the data currently being received.
Gauge pages can be configured in Demo mode to select any supported parameter.
See Data Parameters Monitored for a complete list of available parameters.
Adjust Mode can be disabled once gauge pages have been configured to prevent accidental changes (see
Configuration Menu).
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600 Control Panel Operation and Troubleshooting
Digital Gauge Pages
Digital Gauge Pages display the same data as the Analog Gauge Pages but in digital format. To enable
Digital Gauge Pages, press any of the first 4 buttons to show the top level button bar and then press button
2 . Alternate pages are selected by repeated pressing of button 2. The four standard gauge pages are
shown below.
Note
The 16 gauges are the same for Analog and Digital Gauge Pages.
Changes in either Analog Gauge Pages or Digital Gauge Pages
affect the same gauge in the other mode.
Single Analog Gauge
Single Analog Gauge uses the entire display for a single large analog gauge.
This mode is enabled by pressing any of the first 4 buttons to show the top level
button bar and then press button 3 . The gauge displayed is selectable by
repeatedly pressing button 3 while in the Single Analog Gauge mode while the
menu bar is visible.
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600 Control Panel Operation and Troubleshooting
Active Alarms
A flashing popup window is overlaid on the current screen when an active alarm is received. The popup
includes a plain language description in addition to the standard SPN-FMI pair defined by the SAE J1939
standard. Additionally the beeper sounds as an audible cue.
Example alarm message, plus alarm list screens showing
unacknowledged conditions and acknowledged alarms.
After acknowledgement, the exit button becomes active.
Note
Standard J1939 abbreviations are used for alarms.
MS = Most Severe, MOD= Moderately Severe, LS = Least Severe.
Alarm List
The Alarm List is accessed by pressing any button while an alarm popup is displayed or by pressing any of
the first 4 buttons to show the button bar and then button 4 . Alarms not yet acknowledged are shown
in grey on black while acknowledged alarms are shown in black on grey. The list also indicates when the
alarm occurred if engine hours are available. The most recent alarm is displayed at the top of the list. The
list can be scrolled using buttons 1 and 2 and alarms acknowledged by pressing button 3
. The Alarm List can be closed by pressing Button 5 once the alarms are acknowledged.
An alarm indicator is displayed near the upper right corner of the display as long as alarms are active.
The indicator and alarm messages in the list are automatically removed when the alarm is no longer
received for a few seconds.
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600 Control Panel Operation and Troubleshooting
Configuration Menu
This Configuration Menu allows the user to set various operating parameters such as US or metric units,
scale limits for tachometer and service timers. The configuration menu is entered by pressing and holding
button 5 (the right hand button) in any mode for at least 3 seconds. If PIN entry is enabled the correct PIN
must be entered to access the configuration menu. The top level configuration menu is displayed as shown.
Buttons 1 and 2 allow you to choose from Display, System, Throttling, Telemetry or Db Viewer.
Pressing button 4 selects the chosen menu item indicated in bold and the arrow . Each item is
described in detail on the following pages. Settings are automatically stored when exiting the current menu
even when power is removed.
The top level Configuration menu and its five choices.
Pressing Button 4 selects the highlighted menu item.
Button 5 exits the configuration mode.
Most configuration changes take affect immediately.
Some such as Idle RPM take affect on the next power up.
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Note
600 Control Panel Operation and Troubleshooting
Display Menu
The Display Menu allows the user to configure items affecting how information is displayed.
Units Menu
This menu allows the user to set the units used for
speed, distance, pressure, volume and
temperature independently.
Button 4 changes the selected value.
Speed MPH (miles per hour)
km/h (kilometers per hour)
Knts (knots)
Distance Miles
km (kilometers)
NM (nautical miles)
Pressure PSI (pounds per square inch)
bar (barometric units)
kPa (kilopascals)
Language Menu
This menu allows the user to choose between
English, Swedish, French, German, Spanish,
Italian, Dutch and Portuguese. The currently
selected value is indicated by the check mark .
Button 4 selects the highlighted value.
Bleep
The soft buttons emit an audible beep when this
item is On. Button beep is disabled by setting this
item to Off. The audible beep still sounds when
an alarm occurs.
Volume Gal (US gallons)
IGal (Imperial gallons)
Liters
Temperature °F (Fahrenheit)
°C (Celsius).
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600 Control Panel Operation and Troubleshooting
Gauges Menu
This menu allows the user to configure aspects of
the gauges displayed on the display.
Button 3 selects the previous value while
Button 4 selects the next value of the
highlighted item.
Max RPM
Sets the maximum RPM indicated by the
tachometer gauge.
RPM 2500, 3000, 3500, 4000, 4500,
5000, 6000, 7000, 8000 or
9000
Service
Sets the sixteen (16) service intervals in hours and
resets the service timer. Setting the service interval
to 0 disables the timer and the word Off is
displayed.
Pressing Button 4 allows adjusting the
selected service timer.
Max Speed
Sets the maximum speed indicated by the
speedometer gauge.
MPH 15, 20, 25, 30, 35, 40, 45, 50,
55, 60, 70, 75, 80, 85, 95 or
100
km/h 20, 30, 40, 50, 60, 70, 80, 90,
100, 110, 120, 130, 140, 150
or 160
Quad Adjust
Allows the user to disable Adjust Mode of the
Analog and Digital Gauge Pages. Button 3
disables while Button 4 enables Quad
Adjust.
Button 1 decreases the service interval time
while Button 2 increases the service interval
time in 10 hour increments. Holding Button 3
for approximately 3 seconds resets Next
Service In to the current service interval.
Note
It is not possible to reset the service timer if engine
hours are not being received by the display.
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600 Control Panel Operation and Troubleshooting
System Menu
The System Menu allows the user to configure items affecting how the system functions.
The default settings are:
Demo
The display supports several demo modes to
operate with simulated data. Mode 1 simulates
speed data and engine parameters. Mode 2 only
simulates engine parameters. Mode 3 simulates
speed data, engine parameters and alarms. Mode
0 disables Demo Mode. Demo is automatically
set to 0 (Off) if live data is received.
Restore Defaults
This allows resetting all configuration information
to default US or Metric units.
Additionally the display is reset to the initial
configuration.
Language English
Button Beep On
Service Timers Off
Display Mode Analog Gauges
Gauge Pages Defaults
Quad Adjust On
Demo Mode 0 (Off)
Source Address 0
Display CAN Address 40
Alarm Filter Glb
SPN Version 1
Speed Source Auto
PIN Entry Off
PIN 1111
Max Gauge RPM 2500
Max Gauge Speed 40 MPH 60 KmH
Speed Units MPH KmH
Distance Units Miles Km
Pressure Units PSI kPa
Volume Units Gal L
Temperature Units ºF ºC
Setting US Metric
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600 Control Panel Operation and Troubleshooting
Com Viewer
Displays last CANbus messages received and
engine configuration transmitted by the ECU.
J1939 Viewer
This screen provides a hexadecimal dump of the
last messages received on the CANbus. This
viewer displays the raw data. To see the decoded
data use the Db Viewer.
Engine Config
This screen displays the engine configuration
information received from the ECU.
Button 2 selects the next page of engine
configuration while button 1 select the
previous page.
J1939 Settings
This screen allows adjustments specific to the
J1939 data link.
Button 1 freezes the display while button 2
shows CANbus data statistics screen.
Engine Source
Selects which source the display listens to for
gauge data. Every device on a J1939 network has
a unique address (in the range 0-254) to which
the display can choose to listen. The display
listens to a single data source; usually Engine 1 at
address 0.
Note
Incorrectly configuring the Engine Source address
will result in no data available for display.
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600 Control Panel Operation and Troubleshooting
Display Address
As mentioned previously, every device has a
unique address and the display is no different. In
single engine setups the default display address is
40 (SAE recommendation).
Warning
Incorrectly configuring the Display Address can
result in data collisions on the CANbus.
Alarm Filter
This setting specifies whether the display will
display alarms from all sources (Glb or global) or
only the source address specified in the Engine
Source setting (Src or source).
SPN Version
Selects the default SPN (Suspect Parameter
Number) conversion method version to 1, 2 or 3.
Version 4 is automatically detected, but older
engines will have to be set to 1, 2 or 3.
PIN Settings
By default PIN security is disabled. The user is
prompted to enter a PIN every time the
Configuration Menu is accessed after this feature
is enabled.
PIN Entry
This allows turning PIN Entry On or Off. To
enable the PIN entry feature select PIN Settings
and press button 4 to enable. The current
pin must be entered (default is 1111) as a security
feature. Once the PIN has been entered the
feature is enabled. PIN Entry is disabled by setting
PIN Entry to Off.
Note
Consult your engine supplier to establish the
appropriate SPN conversion method
version if alarm data is incorrect.
Speed Source
There are 3 sources of speed data the display can
decode. The settings for this parameter are
AUTO, NMEA, WHEEL, NAV and OFF. AUTO
prioritizes the sources (highest to lowest); NMEA,
WHEEL (PGN 65265), NAV (PGN 65272). The
selection can be forced to one of the available
sources by selecting it explicitly. Selecting OFF
stops the display listening to any source of speed
data.
The digits of the PIN are entered by using the
buttons corresponding to the digits of the PIN.
Button 1 adjusts the first digit of the PIN.
Button 2 adjusts the second digit, button 3
the third digit and button 4 the fourth
digit. The PIN is entered using button 5 .
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600 Control Panel Operation and Troubleshooting
PIN Change
This allows changing the PIN. The user is
prompted for the current PIN
The user is prompted for the new PIN.
The new PIN must be confirmed before the PIN is
changed.
If the new PINs match a confirmation screen is
displayed.
About
Displays the following product information:
ID/Build Serial number of the display
EEPROM Number of writes on EEPROM
PART No Unit part number
VERS Software version number
CHK Flash memory checksum
SOURCE The source of received data
LIB1 Low level system library
version
LIB2 Low level Graphical Display
Interface library version (if
used)
Note
This screen can not be exited until the checksum
calculation is complete. Checksum calculation
takes approximately 10 seconds and is complete
when the checksum value changes from
“Calculating…” to a hexadecimal value such as
“0x704E – OK”
If the two PINs entered do not match an error
message is displayed and the PIN is unchanged.
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600 Control Panel Operation and Troubleshooting
Throttling Menu
The throttling menu allows the user to configure throttle control.
Idle RPM
Selects the RPM the control system will request for
idle speed. Idle can be set to compensate for
parasitic loads such as hydraulic pumps or
compressors.
Note
The minimum engine RPM is set by the ECU.
Requesting a lower speed causes the engine to
run at the ECU minimum RPM.
Intermediate RPM
Selects the RPM the control system will request for
intermediate speed.
Note
Intermediate RPM is only used with the optional
three-state throttle switch.
Run RPM
Selects the RPM the control system will request for
run speed.
Note
Run RPM is only used with the optional two-state
or three-state throttle switch.
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600 Control Panel Operation and Troubleshooting
Telemetry Menu
This menu allows configuring the optional telemetry system.
Telem J1939 Address
Defines address the telemetry module is using for
CANbus communications.
Note
The display will be unable to communicate with
the telemetry module if this address is incorrect.
Modbus Address
Selects the Modbus slave address the telemetry
module will use for Modbus communications.
Status
Displays telemetry and modem status information
retrieved from the telemetry module:
GSM GSM ID
Sig Strength 0 to 50, 99 if error
Reg Stat GSM Registration Status
Error Stat Error status
Alarm Ch Alarm channel number
Comm Stat Communication Status
Asset ID 31 character Asset ID
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600 Control Panel Operation and Troubleshooting
Db Viewer
The Database Viewer displays and decodes all data monitored by the display. This diagnostic tool allows
viewing data not normally displayed.
The list can be scrolled using buttons 1 and 2 and closed by pressing Button 5 .
Note
The Database Viewer is always in English regardless of language selected.
Preferred Screen Store
The display automatically stores the current screen as the preferred page after a delay of approximately 15
seconds. The display will use the last stored screen on the next power-up.
Note
Selecting Restore Defaults restores the Analog Gauge Pages and default gauges.
Popup Messages and Alerts
Service Required
Users can set up to sixteen service timers in hours in the Configuration menu. The SERVICE REQUIRED
popup is displayed at power up when one or more service timers has expired. Pressing any button removes
the popup. If no button is pressed the popup closes in approximately 5 seconds.
Pop-up warnings of service required and data communications failure.
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600 Control Panel Operation and Troubleshooting
Data Communications Failure
The data communications failure popup icon flashes if the display does not detect data. The warning
disappears and normal operation resumes once data is detected.
Note
Incorrectly configuring the Engine Source address will result in no data available for display.
Data Not Available
Gauges and the Db Viewer will display if the desired data is not available. The display value returns to
normal when parameter data is received.
Adjusting Lighting and Contrast
Pressing button 5 (the right-hand button) when there is no menu bar opens the
lighting and contrast menu bar. The display has a number of back-lighting
levels that allow the display to be read in the dark. The level is adjusted by
pressing buttons 1 decrease or button 2 to increase illumination.
Contrast is adjusted in the same manner using buttons 3 and 4 .
Note
The display adjusts the contrast with ambient temperature.
Manual contrast adjustments are only necessary with extreme climate change.
The menu is exited by pressing button 5 . The lighting and contrast settings are retained after the unit is
switched off.
Note
If the contrast has been adjusted poorly, the factory setting is restored by pressing
buttons 1 thru 4 simultaneously. This action does not change other user-configured settings.
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600 Control Panel Operation and Troubleshooting
Optional Indicators
Power LED (Green)
A solidly illuminated Power LED indicates the keyswitch is in the on position.
Preheat LED (Amber)
A solidly illuminated Preheat LED indicates the engine is preheating. When the LED extinguishes, the preheat
period is complete and the engine may be cranked.
Note
The CANplus display only reports when the ECU is requesting preheat.
Cold starting aids may not be installed in all engine configurations.
Engine Stop LED (Red)
A solidly illuminated Engine Stop LED indicates the ECU has stopped the engine due to a fault.
Note
ECU programming determines the response to warnings and failures.
Typically the ECU can be programmed to shutdown, derate or run to failure.
The CANplus display only reports CANbus conditions.
Warning LED (Amber)
A solidly illuminated Warning LED indicates a warning reported on the CANbus.
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600 Control Panel Operation and Troubleshooting
Typical J1939 Wiring Topology
Most electronically governed engine installations include a harness with built in J1939 backbone. Use
twisted shielded pair with a drain wire for CANbus wiring terminated with 120Ωresistors at each end. The
maximum length for the bus is 131 feet (40 m) and stubs should not exceed 39 inches (1m) in length.
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600 Control Panel Operation and Troubleshooting
Harness
Sealed Connectors
The provided Deutsch sealed weather-proof plug includes a locking ring device which must be turned
counter clockwise to separate the connectors. To positively seat the connectors the locking ring is turned
clockwise.
Warning
LOFA does not recommend using dielectric grease or sealant with sealed connectors.
These chemicals may cause seal damage and allow water entry.
Use LOFA provided cavity plugs to seal the connector if wires are removed.
Unsealed Connectors
For unsealed connectors exposed to the elements, LOFA recommends using dielectric grease to protect
contacts.
Warning
LOFA does not recommend using sealant with unsealed connectors.
Sealant traps moisture in the connector and encourages corrosion.
Harness Routing
The minimum routing radius of the wiring harnesses should be at least two times the diameter of the wiring
harness. Bends should be avoided within 1 inch (25 mm) of any connector in order to avoid seal distortion
allowing moisture to enter the connector.
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600 Control Panel Operation and Troubleshooting
Battery Circuit Requirements
Warning
Improper wiring can cause electrical noise, unreliable operation and may damage the
control system or other components. All power connections must be free from foreign
materials, including paint, which may interfere with proper connection.
A reliable dedicated power circuit must be provided for the control system.
LOFA recommends the power connection be made directly to the battery.
Grounding through frame members is not recommended!
All circuit paths must be capable of carrying any likely fault currents without damage.
Do not reverse the battery polarity. Attempting to crank the engine when the polarity of the
battery connections is reversed may damage the control system.
Battery Positive Connection
The electronic control system operates on either a 12 VDC or 24 VDC electrical systems. The unswitched
battery positive connection to the control system is made at the weather proof connector. The control system
provides switched positive battery protected by solid-state MOSFETs. These outputs include integral
protection against overloads and short circuits.
An integral 40 AMP slow blow fuse protects the unswitched battery positive circuit. Powering the control
system through dedicated circuits reduces the possibility of system damage.
Warning
Disconnecting the battery while the engine is running may damage electrical components.
When using a battery disconnect switch, LOFA recommends using a
2 pole switch to disconnect both the battery and alternator output.
Note
A maximum of three ring terminals should be connected to
a power stud in order to ensure integrity of the connection.
The use of more than three terminals can cause the connection to become loose.
Voltage Drop
If control system voltage drops below 6 volts for more than one tenth of a second, the control system may
reset causing the self test to reactivate. Resetting the control system is equivalent to quickly turning the key
switch to off and back to run without starting the engine. Voltage drops can be caused by a discharged
battery, transients from external equipment, improper wire sizes, faulty wiring or nearby lightning strikes.
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600 Control Panel Operation and Troubleshooting
Suppression of Voltage Transients (Spikes)
Warning
The installation of voltage transient suppression at the transient source is required.
LOFA follows SAE recommended electrical environment practices.
Inductive devices such as relays, solenoids and motors generate voltage transients and noise in electrical
circuits. Unsuppressed voltage transients can exceed SAE specifications and damage electronic controls.
I
Relays and solenoids with built-in voltage transient suppression diodes are recommended whenever possible.
Refer to the illustration for proper installation of diodes when built-in voltage transient suppression is not
available.
Locate inductive devices as far as possible from the components of the electronic control system. When
using electric motors it may also be necessary to add isolation relays to eliminate voltage transients, noise
and prevent back feed.
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Welding on Equipment with Electronic Controls
Proper welding procedures are required to avoid damage to electronic controls, sensors and associated
components. The component should be removed for welding if possible.
The following procedure must be followed if the component must be welded while installed on equipment
with electronic controls. This procedure will minimize the risk of component damage.
Warning
Do not ground the welder to electrical components such as the control ground or sensors!
Improper grounding can cause damage to electrical components!
Clamp the ground cable from the welder to the component being welded.
Place the clamp as close as possible to the weld to reduce the possibility of damage.
1. Stop the engine. Turn the key switch to the OFF position.
2. Disconnect the negative battery cable from the battery.
3. Open any installed battery disconnect switch.
4. Unplug the control system if possible.
5. Connect the welding ground cable as close as possible to the area to be welded.
6. Protect the wiring harness from welding debris and spatter.
7. Use standard welding methods to weld the materials.
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600 Control Panel Operation and Troubleshooting
General Troubleshooting
For additional information, refer to engine manufacturer troubleshooting guide.
No response from starter motor
Possible Cause Possible Remedy
No battery voltage to starter Verify wiring and battery connection (power and ground)
Battery discharged Charge or replace battery, verify alternator charging
Tripped overcurrent protection Correct fault, replace or reset overcurrent protection
No signal from control system No power to control system (see Control System Troubleshooting)
Defective starter solenoid Replace starter solenoid
Defective starter motor Replace starter motor
Engine will crank but not start
Possible Cause Possible Remedy
Engine not getting fuel Check fuel level, filter, fuel pump, verify no air in fuel lines
ECU is not functioning See Engine Troubleshooting
Tripped overcurrent protection Correct fault, replace or reset overcurrent protection
No preheat (cold condition) See Preheat Troubleshooting
Engine runs and shuts down
Possible Cause Possible Remedy
ECU shutdown Use display to view ECU diagnostic codes, use ECU diagnostic tool for
more detailed information
Circuit overload protection
tripped
Voltage transients (spikes) Add suppressor diodes, protect from nearby lightening strikes, shield
Defective control system See Control System Troubleshooting
Correct overload, keep control system from overheating
(over 167° F or 75° C)
induced spikes from other equipment, add electric motor control relay
Alternator not charging battery
Possible Cause Possible Remedy
Broken or slipping alternator
drive belt
Alternator not excited Verify excitation circuit connected, replace faulty regulator
Alternator output not
connected
Alternator not grounded Clean or add ground connection
Alternator faulty Replace faulty alternator
Adjust or replace alternator drive belt
Install charge wire
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600 Control Panel Operation and Troubleshooting
Engine Troubleshooting
Note
Most problems with ECU controlled engines can be pinpointed via the ECU diagnostic messages.
Use the display or ECU diagnostic tool to view fault codes.
All engine state information and diagnostic codes shown
by the CANplus display are provided by the CANbus.
ECU programming determines the response to warnings and failures.
Typically the ECU can be programmed to shutdown, derate or run to failure.
ECU does not power-up
Possible Cause Possible Remedy
No power to ECU Locate reason for lack of power and correct (Circuit overloaded? Failed
suppressor diode? Faulty wiring?)
Tripped overcurrent protection Correct fault, replace or reset overcurrent protection
Faulty ECU Replace ECU
Optional e-stop engaged Disengage e-stop
Engine not getting fuel
Possible Cause Possible Remedy
Empty fuel tank Fuel engine
Clogged filter Replace filter
Air in fuel lines Bleed fuel lines
Low fuel pressure Replace faulty fuel pump and/or clogged filter
Faulty fuel pump Replace fuel pump, correct wiring fault (electric fuel pump)
Preheat Troubleshooting
Engine is hard to start in cold conditions
Possible Cause Possible Remedy
Start attempt before preheat
complete
Heater faulty Replace heater
Heater relay faulty Replace relay
Preheat control not functioning Correct wiring, correct ECU configuration
Faulty control system Repair or replace ECU
Engine produces excessive white smoke after starting
Possible Cause Possible Remedy
Afterglow not enabled Reconfigure ECU
Heater faulty Replace heater
Heater relay faulty Replace relay
Preheat control not functioning Correct wiring, correct ECU configuration
Faulty control system Repair or replace ECU
Wait for preheat time to elapse, crank as soon as time elapses
26 463-3000-07 Initial - 24-Jul-2007
600 Control Panel Operation and Troubleshooting
Control System Troubleshooting
Control system does not perform self test
Possible Cause Possible Remedy
Tripped overcurrent protection Correct fault, replace or reset overcurrent protection
Faulty connection to battery Correct battery connections (see Battery Circuit Requirements)
Faulty control system Repair or replace control system
Control system performs normal self test, engine cranks, runs and shuts down
Possible Cause Possible Remedy
Engine Stop LED illuminated Correct ECU stop condition, use ECU diagnostics
Display does not display data
Possible Cause Possible Remedy
Display lost power Turn on key, verify display plugged into harness
Engine Source address
incorrect
Display Address incorrect Change Display Address to 40 (default)
Display configuration problem Reset display using Restore Defaults
CANbus failure Check CANbus (see Testing CANbus)
ECU not sending data Repair or replace ECU
Change Engine Address in Configuration
463-3000-07 Initial - 24-Jul-2007 27
600 Control Panel Operation and Troubleshooting
Testing a Warning or Shutdown
Shutdown simulation with ECU controlled engines requires using the ECU diagnostic tool. Refer to the
diagnostic tool documentation to simulate a warning or shutdown.
Testing CANbus
Most information provided to the CANplus display is sent by the ECU via the CANbus. CANbus is an
international data bus used to support SAE J1939. If this connection is broken or improperly terminated, the
CANplus display cannot show ECU parameters such as engine hours, oil pressure and diagnostic codes.
This test procedure helps identify the problem location.
1. Disconnect the battery.
Warning
This test should be completed with the battery disconnected!
Failure to disconnect the battery may cause ECU, panel or test equipment damage!
2. Identify the engine diagnostic plug. Connect an ohmmeter across the CANbus pins of the diagnostic
plug.
3. A reading of 60Ωindicates both ends of the bus are terminated and the bus is intact.
4. A reading of 120Ωindicates only one end of the bus is terminated. Identify the CANbus terminator
on the engine harness and remove it.
a. An ohmmeter reading of 120Ωindicates the bus to the terminator in the panel is complete
and the problem is between the panel and the engine terminator.
b. An open circuit ohmmeter reading indicates the bus to the engine terminator is complete
and the problem is between the panel and the diagnostic plug.
5. Reinstall the terminator resistor and reconnect the battery.
a. If the ECU diagnostic tool is available, use it to verify the ECU is transmitting CANbus data.
Refer to ECU documentation to identify and correct the error.
b. If another panel is available for testing, replace the panel to determine if the error is in the
panel.
28 463-3000-07 Initial - 24-Jul-2007
600 Control Panel Operation and Troubleshooting
Diagnostic Trouble Codes (DTC)
CANbus Diagnostic Trouble Codes are a pair of numbers; the Suspect Parameter Number (SPN) and Failure
Mode Identifier (FMI). The SPN indicates the faulting subsystem and the FMI identifies the type of failure.
Typical SPNs
Standard SPN codes are defined by SAE J1939-71. Not all standard codes are provided by ECUs.
Manufacturers may add additional SPN codes beyond the codes identified in J1939-71. Refer to ECU
documentation for supported SPNs.
SPN Description
51 Throttle Position
91 Accelerator Pedal Position
94 Fuel Delivery Pressure
98 Engine Oil Level
100 Engine Oil Pressure
110 Engine Coolant Temperature
111 Coolant Level
FMI
FMI codes are defined by SAE J1939-71. Refer to ECU documentation for correct interpretation of FMI
codes for a specific SPN.
FMI Description
0 Data valid but above normal operational range
1 Data valid but below normal operational range
2 Data erratic, intermittent or incorrect
3 Voltage above normal or shorted high
4 Voltage below normal or shorted low
5 Current below normal or open circuit
6 Current above normal or grounded circuit
7 Mechanical system not responding properly
8 Abnormal frequency, pulse width or period
9 Abnormal update rate
10 Abnormal rate of change
11 Failure mode not identifiable
12 Bad intelligent device or component
13 Out of calibration
14 Special instructions
15 Data valid but above normal operational range (least severe)
16 Data valid but above normal operational range (moderately severe)
17 Data valid but below normal operational range (least severe)
18 Data valid but below normal operational range (moderately severe)
19 Received network data in error
20
thru Reserved for future assignment
30
31 Not available or condition exists
463-3000-07 Initial - 24-Jul-2007 29
600 Control Panel Operation and Troubleshooting
Data Parameters Monitored
This table lists the engine and transmission parameters that are monitored via the CANbus. The parameters
can be displayed by the user-configurable gauge pages or the single analog gauge. DB is an abbreviation
for the internal database which stores all data transmitted from the engine/transmission. The complete
database can be accessed on the display via the Configuration menu.
Icon Parameter Gauge Pages Single Analog Database
Electrical (Volts or Amps)
Electrical Potential
Battery Potential Switched
Net Battery Current
Alternator Potential
Alternator Current
Fuel (L, Gal, lGal) or (L/h, Gal/h IGal/h) or (km/L, MPG or IMPG)
Fuel Remaining
Fuel Rate
Instantaneous Fuel Economy
Trip Fuel Economy
Trip Fuel
Trip Fuel Rate
Total Fuel Used
Fuel Leakage 1
Fuel Leakage 2
Distance (km, Miles or Nmiles)
Distance Remaining
Trip Distance
Total Vehicle Distance
Pressure (kPa, PSI or bar)
Fuel Delivery Pressure
Barometer Pressure
Auxiliary Pressure 1
Boost Pressure
Air Inlet Pressure
Air Filter 1 Differential Pressure
Injector Metering Rail 1 Pressure
Injector Metering Rail 2 Pressure
Coolant Pressure
Engine Oil Pressure
Transmission Oil Pressure
Clutch Pressure
Air Start Pressure
Injection Control Pressure
Temperature (ºC or ºF)
Engine Coolant Temperature
Engine Intercooler Temperature
Engine Oil Temperature 1
Transmission Oil Temperature
Turbo Oil Temperature
30 463-3000-07 Initial - 24-Jul-2007
600 Control Panel Operation and Troubleshooting
Icon Parameter Gauge Pages Single Analog Database
Fuel Temperature
Intake Manifold 1 Temperature
Air Inlet Temperature
Exhaust Gas Temperature
Auxiliary Temperature 1
Engine ECU Temperature
Exhaust Gas Port 1 Temperature
Exhaust Gas Port 2 Temperature
Turbo 1 Compressor Inlet Temperature
Percentage (%)
Fuel Level
Acceleration Position
Throttle Position
Engine Oil Level
Coolant Level
Estimated Percent Fan Speed
Drivers Demand Percent Torque
Actual Engine Percent Torque
Torque Use at RPM
Speed (RPM, km/h, MPH or KTS)
Input Shaft Speed
Output Shaft Speed
Engine Speed
Turbo 1 Speed
Engine Desired Operating Speed
Navigation Wheel Based Vehicle Speed
Time (h)
Total Engine Hours
Trip Engine Hours
Service Hours
Miscellaneous
Torque Converter Lock-Up Engaged
Current Gear
Selected Gear
CANTX Disable
Abbreviations
The units MPG and Gal denote US gallons. For non-US US gallons (UK, Canada, etc) the units are denoted
as IMPG or IGal. N denotes nautical miles. KTS denotes knots.
If a parameter is not available it will not be possible to select it.
If a parameter becomes unavailable while in view is displayed.
463-3000-07 Initial - 24-Jul-2007 31
Note
Glossary
CAN Controller Area Network (also referred to as CANbus); serial communications
DTC Diagnostic Trouble Code; the combination of SPN and FMI that identifies a
ECU Engine Control Unit; electronic device responsible for controlling and monitoring
FMI Failure Mode Identifier; defines the type of failure detected in the subsystem
GPS Global Positioning System; a system of satellites and receiving devices used to
ISO International Standard Organization; an international organization working with
J1939 SAE engine data protocol using CAN 2.0B
LCD Liquid Crystal Display; a display technology that uses electric current to align
600 Control Panel Operation and Troubleshooting
protocol for electronic engines use
specific error
engine operation
identified by the SPN
compute positions on the earth, used in navigation
the United Nations that maintains technology standards for global industry
crystals in a special liquid. When current is applied the crystals change their
orientation creating a darker area.
NMEA National Marine Electronics Association, serial communications protocol for
marine use
RS-232 Standard electrical interface for serial communications
RS-485 Standard differential electrical interface for serial communications
SAE Society of Automotive Engineers; professional association of transportation industry
engineers that sets most auto-industry standards for the testing, measuring, and
designing of automobiles and their components
Soft buttons Push buttons whose function changes according to use
SPN Suspect Parameter Number; a number used to identify a particular element,
component or parameter associated with an ECU
Note
The messages, icons and error codes displayed
conform to J1939 standards wherever possible.
A copy of the relevant standards documents may be accessed and purchased at:
http://www.sae.org/standardsdev/groundvehicle/j1939a.htm
32 463-3000-07 Initial - 24-Jul-2007
600 Control Panel Operation and Troubleshooting
Software Revision History
1.30
Initial release
Document Revision Information
Initial: 24-Jul-2007.
463-3000-07 Initial - 24-Jul-2007 33
600 Control Panel Operation and Troubleshooting
34 463-3000-07 Revision - - 24-Jul-2007
Typical Schematic
The following page shows a typical schematic.
Details vary from installation to installation.
See the specific schematics for installation for details.
600 Control Panel Operation and Troubleshooting
463-3000-07 Initial - 24-Jul-2007 35
Description
Rev
Date Sheet
Part Number
of
©THE INFORMATION CONTAINED IN THIS DRAWING IS CONFIDENTIAL AND THE SOLE PROPERTY OF LOFA INDUSTRIES INC.
Reproduction or dissemination in whole or in part in any form or medium without exp ress prior written permission of LOFA INDUSTRIES INC is prohibited.
All rights of design reserved
MANUFACTUREROF QUALITY ENGINE COMPONENTS
INDUSTRIES, INC.
Phone FAX
7/24/2007
CP600 Generic Point to Point
250 HembreePark Dr Ste 122 RoswellGA 30076
770-569-9828 770-569-9829
www.LOFA.net
a
P1
B Battery (30)
c
D Starter (50)
E Ground (31)
f CAN Shield
G Accesory (15)
h
j Alternator Accy
k
l
m
n
p
r Throttle Select
s Sensor Return
t
u CAN Low
v CAN High
w
x
1
J1
2
3
4
5
6
7
8
9
10
11
12
1
J4
21
SP1
0I
II
50
KS1
15
75
83
30
1
J2
1
J3
1
J5
2
3
4
5
6
7
8
21
SP2
R1
12 AWG Red/Black
16 AWG Red
16 AWG Red
12 AWG Red
16 AWG Black
16 AWG Yellow
16 AWG Yellow/Black
16 AWG Black
16 AWG Lite Blue
16 AWG Grey
18 AWG Yellow
18 AWG Lite Green
16 AWG Red
16 AWG Black
16 AWG Yellow
16 AWG Yellow
16 AWG Red
16 AWG Red
14 AWG Black
1
DSP1
Power VB-
2Power VB+
3RS232 TX+
4RS232 TX5RS232 RX6RS232 RX+
7CAN LO
8CAN HI
9RS485A
10RS485B
11Ext Alarm Op
12N/C
1
CTL1
Vcc
2RS485B
3RS485A
4Gnd
5SW1
6SW2
7SW3
8Gnd
1
RS1
C
2 1
J8
1
J7
1
J6
463-3000-07 Initial - 24-Jul-2007
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