Lofa CANplus 750 Operating instructions

®750 Control Panel
Operation and Troubleshooting
463-3000-08 revised –Sept 16, 2013
CANplus and CANplus logo are registered trademarks of LOFA Industries, Inc.CP750 and the LOFA logo are trademarks of LOFA Industries, Inc.

®750 Control Panel Operation and Troubleshooting
2 463-3000-08 revised Sept 16, 2013
SAFETY SYMBOLS
This manual uses the following conventions to present IMPORTANT SAFETY INFORMATION to you.
Please read and follow ALL SAFETY INSTRUCTIONS.
IMPORTANT SAFETY INFORMATION- A HAZARD THAT MAY,
IF NOT AVOIDED, CAUSE MINOR/ MODERATE INJURY.
IMPORTANT SAFETY INFORMATION- A HAZARD THAT
MIGHT CAUSE SERIOUS INJURY OR LOSS OF LIFE.
IMPORTANT and URGENT SAFETY INFORMATION- A
HAZARD THAT WILL, IF NOT AVOIDED, CAUSE SERIOUS
INJURY OR LOSS OF LIFE.
CAUTION
IMPORTANT SAFETY INFORMATION- A HAZARD THAT MAY,
IF NOT AVOIDED, CAUSE EQUIPMENT DAMAGE.
NOTE
ADDITIONAL IMPORTANT INFORMATION.
This document must be completely read and understood prior to installing, testing, or operating
the equipment described within. Further, this document must be retained for current and future
users of this equipment. Failure to strictly follow the warnings and dangers presented within this document could
result in damage to equipment, damage to property, bodily injury or death.
NOTE: THE SELLER HEREBY EXPRESSLY DISCLAIMS ALL WARRANTIES, EITHER EXPRESSED OR IMPLIED, INCLUDING ANY
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, AND NEITHER ASSUMES NOR
AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY LIABILITY IN CONNECTION WITH THE SALE OF SUCH
PRODUCTS.
LOFA products are not designed or approved for use as critical components of any safety device or system
that is intended to prevent bodily injury, protect life, or prevent property damage.
The specifying Original Equipment Manufacturer (OEM) and/or Installer of any LOFA panel is responsible
for all safety labeling and operator education regarding the safe operation of this panel and the operation
of the specific machine that this panel is installed upon—including conformance to exhaust emissions
regulations.
Only trained and qualified persons may perform installation, testing, service, or repair work on the LOFA product.
LOFA products are not designed for, or intended for use on applications requiring explosive proof
components. Further, LOFA products are not designed for, or intended for application within hazardous or
explosive environments.
The installer of this LOFA product is solely responsible for ensuring that all OSHA, ANSI, CE, or other
applicable standards are met with respect to LOFA panel applicability, machine guarding, general safety
guidelines, labeling, and warnings.
The installer of this LOFA panel and/or LOFA harness is responsible for sizing and integrating a
suitable fuse/ breaker on the un-switched DC circuit supplying power to the LOFA panel.
NOTE: Please refer to www.LOFA.net for details on LOFA Industries, Inc. warranty policies.
LOFA Industries, Inc. has provided this document as a reference. We try to keep this document updated with the latest information regarding your LOFA product. However, changes do
occur and LOFA reserves the right to make changes to the design of the LOFA products and supporting documentation without notice.

®750 Control Panel Operation and Troubleshooting
463-3000-08 revised Sept 16, 2013 3
AUXILIARY Engine Stop DISCLAIMER
This panel or harness may include an optional Auxiliary Engine Stop feature. The sole design intent of the
Auxiliary Engine Stop Feature is to provide for engine shutdown in the event of a key-switch malfunction.
The panel key/ lever switch should always be used as the primary engine shutdown method.
Please note that the Auxiliary Engine Stop feature is NOT intended to function as the machine/ equipment
Emergency Stop, or be purposed as an Emergency Stop for safety purposes. The machine manufacturer
must provide a separate Emergency Stop switch to meet safety mandates or emergency machine shutdown
functionality.
NOTE: GENERAL EMISSIONS DISCLAIMER
This panel may include provision(s) for operator input such as FORCE REGENERATION, INHIBIT
REGENERATION, INTERLOCK, and others specific to US and International emissions regulations.
Responsibility for emissions related inputs and compliance with emissions regulations is solely that of the
owner and/or operator of the machine/ engine on which this panel is connected.
CAUTION: EXHAUST EMISSIONS COMPLIANCE/ AUTO-START DISCLAIMER
This panel is equipped with operator programmable parameters that could result in the automatic starting
and stopping of the engine/ machine. The engine/ machine, as a function of the emissions system can/
could initiate, via the engine ECU, certain required emissions operations such as regeneration of the DPF, or
other emissions system maintenance, while the engine is running. The owner/ operator of the engine/
machine is solely responsible for any adverse effects or damage to the engine, engine emissions system, or
other damage that could occur as a result of starting or stopping the engine/ machine during any ECU
initiated emissions event.
AUTO- Start DISCLAIMER
This panel/machine may be equipped with an automatic engine start-up
system that could result in the automatic starting and stopping of the engine/
machine at any time. As such:
The engine may start without warning or notice.
It is SOLELY the responsibility of the owner/ installer/ operator to provide
warning labels, visible warnings, and audible warnings to notify the operator
of an impending start-up.
ALWAYS use lockout/ tag out procedures prior to performing ANY service
or configuration operations.
DO NOT configure operator programmable features while the panel is in
“AUTO” mode (Key in auto-start position). The panel should be configured
ONLY when the key is in the “Run” position.
TYPICAL OPERATION:
1.Pull the AUX Engine STOP button “OUT” (away from the panel
face) to allow engine operation.
2.Push the AUX Engine STOP button “IN” (toward the panel face)
to initiate an AUXILLIARY Engine Stop.

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Automatic Operation
The CP750 panel features advanced Automatic Start/Stop control which can meet almost any requirement. Two
switch inputs and a transducer input support a number of control scenarios.
Single switch mode allows reliable operation with a single switch. Dual switch operation allows greater hysteresis
when needed.
The transducer input supports simple start/stop operation by level or pressure and maintenance modes with speed
modification.
Programmable high and low set points control start/stop operation.
Level maintenance modes monitor the operating point and adjust the engine speed to match the targeted
set point with configurable aggressiveness.
Dual switch inputs can be combined with the transducer input for redundant safety to protect against
transducer sensor clog or failure.
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 known as Torque
Speed Control or TSC1.
Other throttle options include Digital Rotary Throttle, Two-State Throttle (Idle/Run) or Three-State Throttle
(Idle/Intermediate/Run). The Digital Rotary can be installed with the Throttle Ramp Throttle or Three-State
Throttle to adjust the Idle, Intermediate and Run speeds.
Service Timers
The CP750 display provides sixteen (16) service timers to alert the operator of needed maintenance. The time interval
for each timer 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 message is displayed on each power up until the
elapsed timer is disabled or reset.
CANplus Messenger Telemetry Option
The optional CANplus Messenger system provides a variety of features to protect and support the equipment
investment. Remote monitoring can alert maintenance requirements, operational problems, improper operation and
location with geo-fence alert. The Web-browser interface allows monitoring an entire fleet of equipment in a central
location. Contact LOFA Industries for more information.
Mechanically Governed Engines
On mechanically governed engines, the CANplus I/O Board performs the ECU
function by monitoring low oil pressure, high temperature and two additional engine
faults. Three analog inputs broadcast the oil pressure, engine temperature and fuel
level across the CANbus to the display and other J1939 devices. The engine speed can
be controlled using a mechanical throttle or by using the standard CP750 throttle
controls with the optional CANplus Actuator Kit. Automatic throttling with automatic
start/stop requires the use of the CANplus Actuator Kit. Only single speed operation is
possible with a mechanical throttle.
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, product damage,
personal injury or death.

®750 Control Panel Operation and Troubleshooting
463-3000-08 revised Sept 16, 2013 5
Introduction
The CANplus®750 (CP750™) control panel is a universal platform to monitor, control and automatically start/stop
both electronically and mechanically governed diesel engines. The microprocessor-based, solid-state design uses
high power semiconductors instead of outdated electromechanical relays to ensure reliable high current switching.
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. An analog fuel level input broadcasts the fuel level across the
CANbus to the display and other J1939 devices. The trans-reflective, backlit display is clearly readable in both bright
sunlight as well as total darkness and is 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. Four bright LEDs below the display indicate Auto Standby, Preheat, Stop and
Warning status.
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 1
Button 2
Button 3
Button 4
Button 5
Analog Gauge
Pages
Repeated presses
cycle through
four pages of
analog gauges
(16 total).
Digital Gauge
Pages
Repeated presses
cycle through
four pages of
digital gauges
(16 total).
Single Analog
Gauge
Repeated presses
cycle through
available analog
gauges.
Active Alarm
Page
Displays active
alarms including a
plain language
description.
Gauge
Adjust
Configures the
parameters
displayed by
gauge pages.
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. Engine state information
and diagnostic codes displayed by the CANplus display are
provided via the CANbus.
Manual Operation
Turning the control system key to the run position energizes the ECU,
all LEDs illuminate once and a start-up screen is displayed while a self
test is performed. 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

®750 Control Panel Operation and Troubleshooting
6 463-3000-08 revised Sept 16, 2013
LOFA Industries for assistance if the fault persists.
After the start-up screen is cleared, the display shows readings on its virtual gauges. Initially the analog gauges are
displayed but the display uses the last displayed screen 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 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 includes an
interlock to prevent the key from being turned to the start position while the engine is running. The key switch must
be turned to the off position to reset the starter interlock before the switch can be turned to the start position again.

®750 Control Panel Operation and Troubleshooting
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Throttle Control
The type of throttle operators installed along with the configured values of Minimum Requested RPM, Idle RPM,
Intermediate RPM, Run RPM and Maximum Requested RPM determine throttle operation. The engine speed can
be adjusted above Run RPM and below Idle RPM but the requests can not fall below Minimum Requested RPM or
above Maximum Requested RPM. The ECU determines how the engine responds to the throttle requests and will
not allow the engine speed to fall below the ECU minimum or maximum RPM.
Note: The Minimum Requested RPM and Maximum Requested RPM
can only be configured using the CANplus Configurator.
See Configuration below for more information.
Ramp Throttle
The standard Ramp Throttle uses a momentary rocker switch to adjust the requested engine speed. When first
started the requested engine speed is Idle RPM. Pressing and releasing the rabbit icon increases the speed
requested by 25 RPM. Pressing and holding the rabbit icon causes the speed to accelerate to full speed in a few
seconds. Similarly, pressing the turtle icon decreases the requested speed.
Two-State Throttle
The optional Two-State Throttle uses a two position rocker switch to adjust the requested engine speed. Pressing
the rabbit icon requests the engine to go to Run RPM. Pressing the turtle icon requests the engine to go to
Idle RPM.
Three-State Throttle
The optional Three-State Throttle uses a three position rocker switch to adjust the requested engine speed. Pressing
the rabbit icon requests the engine to go to Run RPM. The intermediate position requests the engine to go to
Intermediate RPM. Pressing the turtle icon requests the engine to go to Idle RPM.
Digital Rotary Throttle
The optional Digital Rotary Throttle uses a rotary switch to simulate the operation of a throttle potentiometer. Like
the Ramp Throttle, when first started the requested engine speed is Idle RPM. Turning the throttle knob clockwise
increases the requested engine speed. Turning the throttle knob counter-clockwise decreases the requested engine
speed.
Note: When used in combination with the Three-State Throttle, the Rotary Throttle can only be used to make
speed adjustments when the switch is in the intermediate position.
The Rotary Throttle can be used to reprogram the Idle, Intermediate and Run RPMs when used in combination with
the Ramp Throttle or Three-State Throttle. After adjusting the engine to the desired speed with the throttle knob,
press and hold the knob and then press and hold the throttle switch position to be changed. After two seconds all
LEDs will flash indicating the current speed has been stored. The knob and switch can now be released.
Automatic Start/Stop Operation
Turning the control system key to the Autostart position causes all LEDs illuminate once, the Auto Standby indicator
is illuminated and the start-up screen is displayed while a self test is performed. After the start-up screen is cleared,
the display shows the transducer reading and switch status on the Transducer/Switch gauge. All other CANbus
values will show since the ECU is not energized at this time. After one minute the display is powered down to
reduce battery drain. The automatic start/stop system is still functioning as indicated by the Auto Standby LED.
Once the configured automatic start condition exists, the display powers up, the panel starts the engine and follows
the throttle control profile configured (see diagram). The flexible throttle profile includes various speeds and times for
a variety of scenarios.

®750 Control Panel Operation and Troubleshooting
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When the configured stop conditions exist, the panel reduces the engine speed per the throttle profile and stops the
engine. If the configured start conditions exist before the shutdown process is complete the engine will return to the
previous speed until the stop condition exists.
Automatic Start/Stop Warning! When the key is turned to the autostart position and
a start condition exists, the panel will start immediately! Always configure parameters
by turning the key to run. Do not configure the panel in the autostart position! Always use lock out/tag
out procedures when servicing autostart equipment!
Start and Stop Events
The Start and Stop Events are determined by the combination of Start/Stop Mode and Function. See the table below
for
Start/Stop Modes
Sngl Switch Switch one controls automatic
operation.
Dual Switch Both switch inputs control
automatic operation.
Transducer The transducer input controls
automatic operation.
Xducer & Sw The transducer input controls
automatic operation with dual
switch mode as the backup. The
switch inputs override the
transducer if actuated when the
transducer is not calling for an
automatic cycle.
Start/Stop Functions
Empty Uses the selected mode to reduce the level or pressure.
Fill Uses the selected mode to increase the level or pressure.
Maintain Out Uses the transducer to maintain the level or pressure at or below the target.
Maintain In Uses the transducer to maintain the level or pressure at or above the target.
Mode▼
Function ►
Empty
Fill
Maintain Out
Maintain In
Sngl Switch
Start
SW1 Close
SW1 Open
SW1 Close
SW1 Open
Stop
SW1 Open
SW1 Close
SW1 Open
SW1 Close
Dual Switch
Start
SW1 and SW2 Close
SW1 and SW2 Open
SW1 and SW2 Close
SW1 and SW2 Open
Stop
SW1 and SW2 Open
SW1 and SW2 Close
SW1 and SW2 Open
SW1 and SW2 Close
Transducer
Start
Above High Set Point
Below Low Set Point
Above High Set Point
Below Low Set Point
Stop
Below Low Set Point
Above High Set Point
Below Low Set Point
Above High Set Point
Xducer & Sw
Start
Above High Set Point
or
SW1 and SW2 Close
Below Low Set Point
or
SW1 and SW2 Open
Above High Set Point
or
SW1 and SW2 Close
Below Low Set Point
or
SW1 and SW2 Open
Stop
Below Low Set Point
or
SW1 and SW2 Open
Above High Set Point
or
SW1 and SW2 Close
Above High Set Point
or
SW1 and SW2 Close
Below Low Set Point
or
SW1 and SW2 Open
Note: When the switch inputs are the source of the start event in Xducer & Sw mode, only the switches will stop the
engine.
RPM
Time
Idle
Intermediate
Run
Start
Event
Warm Up
seconds
Ramp Up
seconds
Intermediate
seconds
Ramp to Run
seconds
At Run Speed
Stop
Event
Ramp Down
seconds
Cool Down
minutes
Engine
Stop
Engine
Running

®750 Control Panel Operation and Troubleshooting
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Maintain Functions
The Maintain In and Maintain Out functions adjust the engine speed to keep the transducer level at the Target Set
Point. The Servo Gain adjusts how aggressively the throttle is adjusted while the Servo Delay controls how often the
throttle is adjusted.
Note: When “Maintain”is selected in either Dual SW or Single SW modes, the Transducer WILL NOT be
referenced for Start or Stop.
The direction of the throttle adjustment is dependent on the selected mode as shown in the table.
Transducer State
Maintain Out
Maintain In
Above Target
Increase Speed
Decrease Speed
Below Target
Decrease Speed
Increase Speed
Dead Band
In some situations the transducer level may fluctuate around the Target Set
Point such as the water level on a windy day. To limit throttle hunting using
the maintain functions a dead band can be programmed. This value prevents
throttle adjustment while the level is within the band (see diagram). In
essence the speed is considered to be at the target whenever it is within the
dead band.
Note: The dead band entered is amount above and below the target
point. For example, if the target is 5.0 feet with a 0.1 foot dead band,
the dead band is 4.9 to 5.1 feet.
CANplus Display
Soft buttons simplify the user 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 change to represent 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.
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.
Page 1
Page 2
Page 3
Page 4
Note: Engine Hours are displayed as a digital value even on Analog Gauge Pages.
The default gauge pages represent 13 selections since the
tachometer is repeated in the upper left quadrant of each page.
All 16 gauges may be configured by the user to create an application-specific view
of CANbus data. Gauges on the current page can be changed via Adjust Mode,
accessed by pressing button 5 when the button bar is visible. Gauges can be
Level or
Pressure
Low
Set Point
Target
Set Point
High
Set Point
Dead
Band

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changed on any of the four pages by selecting the page to be changed and then entering Adjust Mode.
In Adjust Mode a new button bar is displayed identifying the 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 the buttons selects a different parameter for
the gauge. Adjust Mode is exited by pressing button 5 and storing the new configuration even when
power is removed. Note: A gauge selection can only appear once per page. To move a gauge selection, the
existing gauge location must be changed first. 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 in the Configuration Menu to prevent accidental changes.
Digital Gauge Pages
Digital Gauge Pages display the same data as the Analog Gauge Pages but in digital only 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.
Page 1
Page 2
Page 3
Page 4
Note: The 16 gauges are the same for Analog and Digital Gauge Pages. Adjustments 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. The currently displayed
gauge is stored when power is removed (see Preferred Screen Store).
Note: Gauge selections are limited to the data currently being received. See Data Parameters Monitored for a
complete list of available parameters.
Analog Transducer/Switch Gauge
The Analog Transducer/Switch Gauge displays the transducer value and the switch input
states. The left column represents the values as a bar graph with a digital value displayed
below. The right column shows whether the switches are ‘open’ represented by the pointer
being down or ‘closed’ represented by the pointer being up.
Digital Transducer Gauge
The Digital Transducer Gauge displays the transducer value as a digital only value. The switch
state is not displayed on the Digital Transducer Gauge.
Active Alarms
A flashing popup window is overlaid on the current screen when an active alarm is received.

®750 Control Panel Operation and Troubleshooting
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The popup includes a plain language description in addition to the standard SPN/FMI (Suspect Parameter
Number/Failure Mode Indicator) pair defined by the SAE J1939 standard. Additionally, if enabled, the beeper sounds
as an audible cue.
Example alarm message, 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.
Note: Only active faults are displayed in the alarm list. Once a fault is corrected it is automatically removed
from the list. To view previously active faults use the engine diagnostic tool.
Configuration
To adapt the CP750 panel to the requirements of a particular application, a large number of parameters are
configurable. The most commonly modified parameters can be accessed by invoking the Configuration Menu of the
display. Infrequently changed parameters and those parameters that typically need to be restricted such as Maximum
RPM are accessible only through the CANplus Configurator. The CANplus Configurator is a Windows®PC program
and a hardware adapter that allows total access to the parameters of the panel. For more information about the
CANplus Configurator, please contact LOFA.
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 (Personal Identification Number
or ‘password’) 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, Autostart, Settings, Telemetry or Db Viewer. Pressing button 4 selects the chosen
menu item indicated by bold text and the selection 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.

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The Configuration menu and its six choices.
Pressing Button 4 selects the
highlighted menu item.
Button 5 exits the configuration mode.
Note
Most configuration changes take effect immediately.
Some such as Idle RPM take effect on the next power up.
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 cycles through the available values for the selected item.
Speed MPH (miles per hour)
km/h (kilometers per hour)
Knts (knots)
Distance Miles
km (kilometers)
NM (nautical miles)

®750 Control Panel Operation and Troubleshooting
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Pressure PSI (pounds per square inch)
bar (barometric units)
kPa (kilopascals)
Volume Gal (US gallons)
IGal (Imperial gallons)
Liters
Temperature °F (Fahrenheit)
°C (Celsius).
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.
Button Beep
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. Button 4 cycles between On and Off.
Gauges Menu
This menu allows the user to configure aspects of the gauges displayed. Button 3 selects the previous value while
Button 4 selects the next value of the highlighted item.
Max RPM
Sets the full scale RPM indicated by the tachometer gauge.
RPM 2500, 3000, 3500, 4000, 4500, 5000, 6000, 7000, 8000 or 9000
Max Speed
Sets the full scale 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

®750 Control Panel Operation and Troubleshooting
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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. Disabling Adjust Mode locks the current gauge configuration and
prevents the operator from accidentally changing the gauge configuration.
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.
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.
The service timer descriptions can be changed using the CANplus Configurator.
Note
It is not possible to set the service timers if engine hours are not being received by the display.
System Menu
The System Menu allows the user to configure items affecting how the system functions. . Button 4 cycles
through the available values for the selected item.
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.

®750 Control Panel Operation and Troubleshooting
463-3000-08 revised Sept 16, 2013 15
Restore Defaults
This allows resetting all configuration information to default US or Metric units. Additionally the display is
reset to the initial configuration.
The default settings are:
Setting
US
Metric
Language
English
Button Beep
On
Service Timers
Off
Display Mode
Analog Gauges
Gauge Pages
Defaults
Quad Adjust
On
Demo Mode
0 (Off)
Engine Source
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 km/h
Speed Units
MPH
km/h
Distance Units
Miles
km
Pressure Units
PSI
kPa
Volume Units
Gal
l
Temperature Units
ºF
ºC
Com Viewer
Displays CANbus data received and engine configuration transmitted by the ECU.
J1939 Viewer
This screen provides a hexadecimal dump of the messages received on the CANbus. This viewer displays the raw
data. To see the decoded data use the Db Viewer.

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Button 1 freezes the display while button 2 shows CANbus data statistics screen.
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 selects the previous page.
J1939 Settings
This screen allows adjustments specific to the J1939 data link.
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 the ECU
at address 0.
Note
Incorrectly configuring the Engine Source address will result in no data available for display.

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Display CAN Add
As mentioned previously, every device has a unique address and the display is no different. The default display
address is 40, the recommended address for single engine setups.
Note
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, 2or 3. Version 4 is
automatically detected, but older engines that use conversion method 1, 2 or 3 requires setting this parameter
correctly.
Note
Consult your engine supplier to establish the appropriate SPN conversion method version. Selecting the wrong
version will causealarm data to be displayed incorrectly.
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.
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.

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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 .
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.

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If the two PINs entered do not match an error message is displayed and the PIN is unchanged.
Warning
If the PIN is changed from the default and the new PIN is lost, the configuration mode will not be accessible.
Clearing the PIN requires returning the display to LOFA for service.
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

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Autostart Menu
This submenu allows the user to configure automatic start/stop operation. Refer to Automatic Start/Stop Operation
for more information.
Mode
This menu selects the basic automatic start/stop
operation mode. Button 4 cycles between Single
Switch, Dual Switch, Transducer or Xducer & Sw.
Function
This menu selects the automatic start/stop function.
Button 4 cycles between Empty, Fill, Maintain Out
and Maintain In.
Throttling Menu
The throttling menu allows the user to configure
throttle control.
The throttling menu allows programming the
automatic start/stop throttle profiles as shown in the
following diagram.
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. Idle
RPM is the low speed setting of the optional two state
or three state throttle switches.
Note
The minimum engine speed is set by the ECU.
Requesting a lower speed causes the engine to run at
the ECU minimum speed. RPM limits are programmed
into the panel to limit the requested speed. Changing
the panel Minimum Requested RPM and
Maximum Requested RPM requires using the
CANplus Configurator.
Intermediate RPM
Selects the RPM the control system will request for
intermediate speed. The intermediate speed can be
used to prime pump or charge lines during automatic
start/stop operation. Intermediate RPM is also the
middle setting of optional three state throttle
switches.
Note
Setting the Intermediate RPM to the same speed as
Idle RPM and Ramp to Run to 0 seconds is effectively
two speed automatic operation.
Run RPM
Selects the RPM the control system will request for run
speed. The run speed is the normal operating speed
during automatic start/stop operation. Run RPM is the
high speed setting of the optional two state or three
state throttle switches.
Ramp Up/Down
This submenu configures the speed profile for
automatic start/stop operation.