Lofa CANplus 640c User manual

CANplus®640c Control Panel Operation Manual
October 2018
LOFA Document No. 463-3002-22

Disclaimer: The contents of this document are not to be used for advertising, publication, or promotional purposes. Citation
of trade names does not constitute an official endorsement or approval of the use of such commercial products. All product
names and trademarks cited are the property of their respective owners.
DESTROY THIS DOCUMENT WHEN NO LONGER NEEDED. DO NOT RETURN IT TO THE ORIGINATOR.

Table of Contents
1 Important Safety and Emissions Information .......................................................... 1
1.1 Safety Symbols ............................................................................................ 1
1.2 Safety Instructions ........................................................................................ 1
1.3 Auxiliary Engine Stop Disclaimer...................................................................... 2
1.4 General Emissions Disclaimer ......................................................................... 3
1.5 Exhaust Emissions Compliance Disclaimer ........................................................ 3
2 Overview ........................................................................................................... 4
3 Display .............................................................................................................. 6
3.1 Adjusting Lighting and Contrast ....................................................................... 6
3.2 Button Bar ................................................................................................... 7
3.3 Analog Gauge Pages..................................................................................... 7
3.4 Digital Gauge Pages...................................................................................... 8
3.5 Single Analog Gauge..................................................................................... 9
3.6 Active Alarms............................................................................................... 9
3.7 Alarm List.................................................................................................... 9
3.8 Service Timers ............................................................................................ 10
3.9 Menus ....................................................................................................... 10
3.9.1 Menu Tree........................................................................................... 11
3.9.2 Access Levels ...................................................................................... 13
4 Manual Operation............................................................................................... 15
4.1 Throttle Control ........................................................................................... 15
4.2 Ramp Throttle ............................................................................................. 16
4.3 Rotary Throttle Control.................................................................................. 16
4.4 Stopping the Engine ..................................................................................... 16
4.5 Autoramp™ ................................................................................................ 17
5 Configuration .................................................................................................... 19
5.1 Display Menu .............................................................................................. 19
5.2 LOFA CANplus®Software Suite and LOFA CANplus®Config kit ............................ 19
5.3 LOFA CANplus®Software Suite and a USB drive ............................................... 20
6 Miscellaneous ................................................................................................... 21
6.1 Emissions System Functionality ...................................................................... 21
6.2 CP640c Panel Wiring.................................................................................... 21
6.2.1 Typical J1939 Wiring Topology ................................................................... 21
6.2.2 Engine Harness Connector ....................................................................... 22
6.2.3 Sealed Connectors ................................................................................ 22
6.2.4 Unsealed Connectors ............................................................................. 22
Page ii LOFA document No. 463-3002-22 Page ii

6.2.5 Harness Routing ................................................................................... 24
6.3 Engine Starter Excitation Connection ............................................................... 24
6.3.1 Starter Relay........................................................................................ 24
6.3.2 Battery Circuit Requirements..................................................................... 24
6.3.3 Battery Positive Connection ...................................................................... 24
6.3.4 Voltage Drop ........................................................................................ 25
6.3.5 Suppression of Voltage Transients (Spikes) .................................................... 25
6.3.6 Welding on Equipment with Electronic Controls ............................................... 25
6.4 Control System Troubleshooting...................................................................... 26
6.4.1 Testing a Warning or Shutdown .................................................................. 27
6.4.2 Testing CAN ........................................................................................ 27
6.5 Diagnostic Trouble Codes (DTC) ..................................................................... 27
6.5.1 Typical SPNs ....................................................................................... 27
6.5.2 FMI................................................................................................... 27
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1. Important Safety and Emissions Information
1 Important Safety and Emissions
Information
1.1 Safety Symbols
This manual uses the following conventions to present IMPORTANT SAFETY INFORMATION to you.
Please read and follow ALL SAFETY INSTRUCTIONS.
IMPORTANT AND URGENT SAFETY INFORMATION - A HAZARD THAT
WILL, IF NOT AVOIDED, CAUSE SERIOUS INJURY OR LOSS OF LIFE.
IMPORTANT SAFETY INFORMATION - A HAZARD THAT MIGHT CAUSE
SERIOUS INJURY OR LOSS OF LIFE.
ADDITIONAL IMPORTANT INFORMATION
1.2 Safety Instructions
Please read and follow all safety instructions.
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.
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.
LOFA document No. 463-3002-22 Page 1

1. Important Safety and Emissions Information
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.
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 the
correct sizing and integration of a suitable fuse/breaker on the un-switched
DC circuit supplying power to the LOFA panel.
Only trained and qualified persons may perform installation, testing, service,
or repair work on the LOFA product.
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.
Please refer to www.LOFA.net for details on LOFA Industries, LLC warranty
policies.
LOFA Industries, LLC 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.
Page 2 LOFA document No. 463-3002-22 Page 2

1. Important Safety and Emissions Information
1.3 Auxiliary Engine Stop Disclaimer
This panel or harness may include an optional Auxiliary Engine Stop feature. 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 emer-
gency machine shutdown functionality. The sole design intent of the Auxiliary Engine Stop Feature
is to provide for engine shutdown in the event of a keyswitch malfunction. The panel key/lever switch
should always be used as the primary engine shutdown method.
1.4 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.
1.5 Exhaust Emissions Compliance Disclaimer
This panel is equipped with operator-programmable parameters. The engine/machine as a function
of the emissions system can/could initiate, via the engine ECU (engine control unit), certain required
emissions operations such as regeneration of the DPF (diesel particulate filter), 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.
LOFA document No. 463-3002-22 Page 3

2. Overview
2 Overview
The LOFA CP640c control panel is an economical platform for EPA Tier 3, EPA Tier 4 (interim), and
EPA Tier 4 electronically governed diesel engines. Graphical gauge pages or a single large analog
gauge are displayed on the 3.5-inch diagonal LCD. Virtually any SAE J1939 parameter reported
by the ECU (Engine Control Unit) can be displayed including, but not limited to: RPM, coolant
temperature, oil pressure, engine hours, voltage, exhaust emissions system state, and diagnostic
codes. The backlit display is clearly readable in both bright sunlight as well as total darkness and
housed in a rugged IP66 rated housing. The CP640c can optionally include three (3) bright LEDs to
indicate Faults, Warnings, and Emission-Related Alerts.
All components are installed in a heavy-duty, vibration isolated, metal enclosure designed to with-
stand the most extreme industrial applications. External weather resistant switches and controls
facilitate convenient operator inputs/controls. Active fault conditions are displayed in plain language
on popup messages and can be viewed in the fault list. Various diagnostic screens allow detailed
investigation of the CAN bus data stream.
All diagnostic and emissions related messages displayed on the CP640c
are generated by the engine ECU or other attached devices. The operator
must be familiar with the engine manufacturer ECU messages and icons in
order to react accordingly with respect to emissions compliance, service,
and diagnostic message response.
Page 4 LOFA document No. 463-3002-22 Page 4

2. Overview
LOFA document No. 463-3002-22 Page 5

3. Display
3 Display
The CANplus
®
display is a robust, sunlight viewable 3.5” QVGA color display with five (5) integrated
backlit buttons housed in a rugged, water-tight IP66 rated enclosure. The five soft keys simplify and
enhance the user interface by providing a configurable auditory beep and positive tactile feedback
when pressed.
The display can show virtually any SAE J1939 parameter reported by the ECU, including RPM,
engine temperature, oil pressure, and diagnostic codes. It can be easily configured to customer
preference, including gauge type (analog or digital), gauge arrangements, gauge size, units, and
language.
Different software versions may have slightly different displays.
3.1 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 allowing 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.
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3. Display
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 powered off.
3.2 Button Bar
Pressing any of the first four (4) soft keys on the display will prompt the button bar key function
legend to appear at the bottom of the display above the keys. The button bar will show an icon above
the button which corresponds to its current function.
Button 1 Button 2 Button 3 Button 4 Button 5
Analog Gauge
Pages
Digital Gauge
Pages
Single Analog
Gauge
Active Alarm
Page
Menus
Repeated
presses cycle
through the four
pages of analog
gauges
Repeated
presses cycle
through the four
pages of digital
gauges
Repeated
presses cycle
through the
available digital
gauges
Displays active
alarms including
plain language
description
Opens Menus
3.3 Analog Gauge Pages
Analog Gauge Pages provide four (4) independently configurable pages of analog gauges. To enable
Analog Gauge Pages, press any of the first four (4) buttons to show the top level button bar and then
press button 1 to cycle through the pages.
LOFA document No. 463-3002-22 Page 7

3. Display
Some items like Engine Hours are displayed as a digital value even on
Analog Gauge Pages.
All sixteen (16) gauges may be configured to create an application-specific view of data. With Tech or
Admin level access, the four (4) analog gauge pages can be configured using the menu
Configuration
Display Gauges Quad Gauge Pages .
3.4 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 to cycle through the pages.
The sixteen (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.
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3. Display
3.5 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 to
cycle through the available gauges. The active displayed gauge is stored when power is removed
(see Preferred Screen Store).
3.6 Active Alarms
When an active alarm is received, 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 (Suspect Parameter Number/Failure Mode Indicator) pair defined by the SAE
J1939 standard. Additionally, if enabled, the beeper sounds as an audible cue.
Standard J1939 abbreviations are used for alarms. MS = Most Severe,
MOD = Moderately Severe, LS = Least Severe.
3.7 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 white on red while acknowledged alarms are shown in white on black. 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 has
not been received for a few seconds.
LOFA document No. 463-3002-22 Page 9

3. Display
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 press
the ”STORED” button.
3.8 Service Timers
The CP640c display provides sixteen (16) service timers to alert the operator of required maintenance.
The time interval for each timer can be adjusted in increments of ten (10) hours. A popup message
is displayed after the display self-test if a timer (or timers) 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.
The service timers can have their respective names customized to monitor engine- and pump-related
parameters. All sixteen (16) service timers can be monitored via wireless telemetry.
3.9 Menus
The menu pages can be accessed by pressing and holding button 5. After one (1) second, the
top-level menu page will appear. From there the functions of the five display buttons change to allow
navigation and selecting and modifying parameters.
Button 1 Button 2 Button 3 Button 4 Button 5
Sroll Up Scroll Down [Intentionally
Blank]
Go into Selected
Submenu
Return to
Previous Menu
Decrement Value Increment Value
or or
Previous
Selection
Next Selection
The menus pages can also be accessed by pressing and holding the optional Rotary Control using
LOFA’s RotaryPlus™ technology:
• Push and hold the rotary for one (1) second to open menus main page
• Move down through the menu choices with clockwise rotations
Page 10 LOFA document No. 463-3002-22 Page 10

3. Display
• Move up through the menu choices with counter clockwise rotations
• Select menus, options, and entries by pushing in the rotary knob (click)
• Increase numerical entries with clockwise rotations
• Decrease numerical entries with counter clockwise rotations
• Pushing in the rotary knob twice quickly (double click) backs up to the previous menu
• At any time, pushing and holding the rotary for one (1) second causes the display to completely
back out of the menu mode showing the main gauges
3.9.1 Menu Tree
The menu tree is shown below. Some menus items are suppressed based on the access level
currently allowed. The color of the text in the tree indicates the minimum access level required for
this particular item to be available for displaying.
Black = User
Green = Tech
Red = Admin
Display
• Language
• Units
–Distance
–Pressure
–Volume
–Temperature
• Button Beep ON/OFF
•Gauges
–Quad Gauge Pages (configure which gauges will be displayed)
*1-4
–Voltmeter - 12V/24V
LOFA document No. 463-3002-22 Page 11

3. Display
System
•Restore Defaults (recall factory defaults)
•Import Config (import a new configuration file from the USB port)
• Export Config (export current configuration to a file on the USB port)
• PINs (see section 3.9.2)
–Elevate Access Level
–Entry - On/Off
–Change
•CAN bus
–TSC1 Address (panel sends the TSC1 messages from this CAN address)
–Panel Address (CAN address for the panel)
–CM1 Address (panel sends the CM1 messages from this CAN address)
–Config Address (panel address for Config program)
•Engine Type
•Engine Specific Settings
• Date and Time
• About
Throttle
•Min / Idle / Max RPM
• Switch/Rotary
–Increments
–Max Change Per Second
•Autoramp (see section 4.5)
–RPM Settings
*Intermediate
*Run
–Time Profile
*Warm Up
*Ramp to Intermediate
*Ramp to Run
*Ramp to Cooldown
*Cooldown
Page 12 LOFA document No. 463-3002-22 Page 12

3. Display
Telemetry
• Status
•Address (CAN address for the telemetry device)
Service Timers
• Timers 1-16 (each timer is listed separately)
–Hours remaining
–Reset
Tier 4 Control
•Inhibit - OFF/ON (inhibit Regenerations)
•Request Force (request a Force Regeneration; depending on conditions, ECU may not honor)
•Status (database Viewer for Tier 4 related status messages from the ECU)
Database Viewer
3.9.2 Access Levels
The available menu items are dependent upon the current access level. The current access level is
shown in the upper right corner while in the menus. The CP640c supports up to three (3) independent
PINs that are configurable. The standard LOFA configuration has the following PINs settings:
• User = 1000
• Tech = 1111
• Admin = 2222
• Menu PIN Required = OFF
Elevate Access Level
When the panel is turned on, the access level reverts to the User level. To gain access to
Tech or Admin levels, use the Elevate Access Level menu
Configuration System PIN Settings
Elevate Access Level .
The panel will prompt for a PIN input. User, Tech, or Admin level access will be granted based on
which PIN is entered. Example: If the Tech level PIN is entered, Tech level access will be granted
and similarly if Admin or User level PINs are entered. If the entered PIN does not match User, Tech,
or Admin, then ”Incorrect PIN” is displayed and the access level reverts to User.
LOFA document No. 463-3002-22 Page 13

3. Display
Once elevated, the access level stays in effect until the panel is turned off.
PIN Change
PINs can be changed via the Menu by selecting Configuration System PIN Settings PIN Change .
The PIN being changed is the PIN for the current access level. Example: At User level, only the User
PIN can be changed. To change the Tech PIN, use the Elevate Access Level menu and enter the
correct Tech PIN. Then go to the PIN Change menu to change the Tech PIN.
Menu PIN Required OFF
• Accessing the menu is allowed with no PIN input required
• Only User access level items are displayed
• Use the Elevate Access Level menu to access Tech of Admin menu items
Menu PIN Required ON
• PIN is required to access the menu
• User, Tech, or Admin level access will be granted based on which PIN was entered. If PIN does
not match the User, Tech or Admin PIN, then the panel will display invalid PIN.
Once an access level is granted, that level is retained until the key is turned off. When the key is turn
back to the ON position, the access level reverts back to User and follows the Menu PIN Required
setting.
Page 14 LOFA document No. 463-3002-22 Page 14

4. Manual Operation
4 Manual Operation
1. Ensure that the Auxiliary Engine Stop (if fitted) is not activated.
2. Turn the keyswitch to the run position.
3. Turn the keyswitch clockwise to the start position and hold until the engine successfully starts.
4. Release keyswitch.
If the engine fails to start, the keyswitch must be returned to the off position prior to subsequent start
attempts.
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.
4.1 Throttle Control
Throttle operation is determined by the type of throttle operator(s) installed along with the configured
values of:
• Minimum Requested RPM
• Idle RPM
• Intermediate RPM
• Run RPM
• 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 RPM or go above the ECU maximum RPM. The ECU minimum
and maximum RPM values are determined by the ECU ”payload” and typically require the engine
manufacturer’s configuration tool to adjust. The ECU will honor RPM requests that are above the
ECU’s minimum RPM as well as RPM requests that are below the ECU’s maximum RPM.
Therefore, to avoid confusion it is best to NOT set the panel’s Minimum Requested RPM below the
ECU’s minimum RPM or above the ECU’s maximum RPM.
Example: The panel’s Minimum Requested RPM is set to 800 RPM yet the ECU payload defines the
engine minimum speed to be 900 RPM. In this case, the engine will not run at 800 RPM despite the
CP640c control panel requesting a lower engine speed. The ECU will ignore all RPM requests that
are below 900 RPM, resulting in a minimum speed of 900 RPM.
LOFA document No. 463-3002-22 Page 15