Controls iMech Series User manual

Product Manual
iMech Series
Microprocessor-BasedEngineManagementSystem
ForMechanicalEngines
Part Number: C3M-115
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-115 is a sealed microprocessor-based engine control system for industrial engines. It is based on
the Controls, Inc.iMech series controller platform with aFreescale 8 bit processor.
1.2 The product is packaged into water tight, polycarbonate enclosureformaximum durability. The controller is
plug & play with a sealed bulkhead engine connector incorporated into thecase.
1.3 The digital OLEDdisplay is 1”H x 4”W with two rows of 16 characters. Character height is approximately ½”.
The display has an operating and storage temp rating of -40C to+80C and isviewable in direct sunlight
1.4 The unit monitorsall critical enginefunctions and hasfull time display of Oil Pressure, Engine Temperature,
Engine Speed, BatteryVoltage, Fuel Level and Engine Hours.
1.5 Analog Input is available forfuel level monitoring.
1.6 Digital Flex Inputis availableforexternal shutdown switches.
1.7 Engine speed control optionsinclude:(requirea thirdparty device to drive)
1.7.1 Off –Nofunctionalityfrom the control panel.
1.7.2 Momentary–Two contactclosures for Upand Down when arrow buttons are pressed.
1.8 The controller with corresponding amber or red LEDilluminations above the digital display monitors engine
safety alarms. Text messages are displayed automatically.
iMech™ C3M-115

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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 Display Parameters –The six full-timedisplay parametersare:
∙ Water Temperature ∙ Battery Voltage
∙ 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 andengine speed if configured.
2.5 Amber (Prealarm) LED and Red (Alarm) LED located above the digital display.
2.6 Harness Connector –Ampseal 14 pin.

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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 orvibration isolators.
3.4 Two Hole Requireif mounting directly to sheet metal

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

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4.1.3 Acquiring Information –Panel beginsmonitoring sensor inputs. Values are displayed. If no
information isavailable due to a sensor not being connected, the display shows dashed lines.
4.1.4 Typical Operating Screen –After the operator hasstarted the engineusing the key switch,the
panel displays and updates engineinformation continuously. Parameters such as oil pressure and
engine temperature can be configured to be displayed inMetric orEnglish units. Fuel level is
displayedin 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 willilluminate and thevalue will flash on the display. These settingsare 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 illuminateand 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 –Anytimea warning or shutdown condition occurs, the panel will storethe event in
non-volatile memory. The last 16 eventswill be stored with a runningtime stampforreference.
Clearingof the log requires entering the password.
4.1.8 Operation Logging –Anytime the engineis started orstopped, 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 devicemust 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 thepanel. 5-ampmax.
4.1.9.2 Momentary: Directional arrows will be used toindicate when the operator haspressed the Up or
Down arrows buttons. Assigned relayswill 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 moduleis connected to the internal wiring harness
via a 14-pin TYCO plug. To add additional wires to anyavailable 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 Max)
8
MPU+ or Tach Signal
2
EngineTemp Sender
9
Relay 4Common
3
Battery Positive Common
10
N/A
4
Relay 4N/O
11
Switched Power to C3M
5
Pre Heat Signal (5Amp)
12
Battery Negative
6
N/O of Relay 1** (Ground Signal)
13
Fuel Level Sender
7
Oil Press Sender
14
External Shutdown
** Common tied to batteryminus.
AMPSEAL
776262-1