Controls iMech Series User manual

Product Manual
iMech Series
Microprocessor-BasedEngineManagement System
For Mechanical Engines
Part Number: C3M-100-AS
Revision: 1.2
______________________________________________________________________________________________________________________________________
Copyright Controls, Inc.
P.O. Box 368 • Sharon Center, OH 44274
Phone [phone] • Fax [phone] • www.controlsinc.com

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1) Introduction
1.1 The C3M-100-AS is a sealed microprocessor-based engine control system for industrial engines. It is based
on the Controls, Inc. iMech series controller platform with a Freescale 8 bit processor.
1.2 The product is packaged into a water tight, polycarbonate enclosure for maximum durability. The controller
is plug & play with a sealed bulkhead engine connector incorporated into the case.
1.3 The digital display is 1”H x 4”W with two rows of 16 characters. Character height is approximately ½”. The
display has automatic temperature compensation for optimal viewing across the entire operating
temperature range of –20C to +70C. Backlight intensityis also adjustable. An extreme temperature option
is available, which extends the operating temp to –45C to +85C and the storage temp to –55C to +95C.
1.4 The unit monitors all critical engine functions and has full time display of Oil Pressure, Engine Temperature,
Engine Speed, Battery Voltage, Fuel Level and Engine Hours.
1.5 Analog Input is available for fuel level monitoring or can be used as a digital switch input. OEM
Programming is available for other parameter monitoring.
1.6 Digital Flex Input is available for Auto Start.
1.7 The controller with corresponding amber or red LED illuminations above the digital displaymonitors engine
safetyalarms. Text messages are displayed automatically.
iMech™ C3M-100-AS

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2) Interface
2.1 Display–The backlit digital display is 1”H x 4”W with two rows of 16 characters. Character height is
approximately ½”.
2.2 DisplayParameters –The six full-time displayparameters are:
∙ Water Temperature ∙ BatteryVoltage
∙ Engine RPM ∙ Fuel Level
∙ Oil Pressure ∙ Engine Hours
2.3 Menu & Enter Buttons –To access and scroll menus.
2.4 Up & Down Buttons –For menu navigation and engine speed if configured.
2.5 Amber (Prealarm) LED and Red (Alarm) LED located above the digital display.
2.6 Harness Connector –Ampseal 14 pin, White

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3) Enclosure
3.1 Sealed Polycarbonate Enclosure
3.2 O-Ring Seal
3.3 Four 10-32 Brass bosses used to mount unit to sheet metal or vibration isolators.
3.4 Two Hole Require if mounting directlyto sheet metal

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4) Panel Operation
4.1.1 Power Up –Unit performs a power up self-test. Initialization screen displays firmware version. LEDs
are illuminated for operation verification.
4.1.2 Preheat Cycle –If programmed, the unit will energize the preheat circuit. A countdown message will
be displayed.

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4.1.3 Acquiring Information –Panel begins monitoring sensor inputs. Values are displayed. If no
information is available due to a sensor not being connected, the display shows dashed lines.
4.1.4 Typical Operating Screen –After the operator has started the engine using the keyswitch, the
panel displays and updates engine information continuously. Parameters such as oil pressure and
engine temperature can be configured to be displayed in Metric or English units. Fuel level is
displayed in percentage.

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4.1.5 Engine Warning –When the iMech detects a parameter is outside of its normal operating range, the
amber LED will illuminate and the value will flash on the display. These settings are user
programmable.
4.1.6 Engine Shutdown –When the iMech detects a parameter has exceeded its normal operating range
for a period of time, the red LED will illuminate and a shutdown will occur. A text message will be
displayed on the LCD screen and remain there until the power is cycled. These settings are user
programmable.

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4.1.7 Alarm Logging –Anytime a warning or shutdown condition occurs, the panel willstore the event in
non-volatile memory. The last 16 events willbe stored with a running time stamp for reference.
Clearing of the log requires entering the password.
4.1.8 Operation Logging –Anytimethe engine is started or stopped, the panel will log the event. The last
16 events will be stored with a running time stamp for reference. Clearing of the log requires entering
the password.

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4.1.9 Throttle Operation –When using the iMech to control engine speed, a third partygovernor or other
actuator device must be used.
4.1.9.1 Hi - Lo: LCD Messages of “Throttle Hi” and “Throttle Low” will be used to indicate if the assigned
relay has closed. An open / closed signal will be generated by the panel. 5-ampmax.
4.1.9.2 Momentary: Directional arrows will be used to indicate when the operator has pressed the Up or
Down arrows buttons. Assigned relays will close upon activation. 5-amp max.
Up Arrow
Down
Arrow

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5) External Connectors
5.1 C3M-100 Module Connector - The C3M-100 module is connected to the internal wiring harness
via a 14-pin TYCO plug. To add additional wires to any available position, please use pins
770854-1. Individual 12” wires with crimped pins are available from CI. P/N 70-0302
Pin
Function
Pin
Function
1
Fuel Solenoid (10 Amp)
8
MPU+ or Tach Signal
2
Engine Temp Sender
9
Battery Positive Common
3
Battery Positive Common
10
Auto Position Detect*
4
Auto Crank Signal* (10 Amp)
11
Switched Power to C3M
5
Pre Heat Signal (5 Amp)
12
Battery Negative
6
N/O of Relay1** (Ground Signal)
13
Fuel Level Sender
7
Oil Press Sender
14
Flex Digital Input
‘* When used in auto start configurations. Do not apply power to 11 when auto mode is desired.
** Common tied to battery minus.
AMPSEAL
776262-1