105v-PCB

MULTI-ATTEMPT AUTOMATIC ENGINE CONTROL MODULE PCB Model No: AECM105V

PREFACE

The Model AECM105V is an Automatic Engine Control Module PCB designed to automatically or/and manually start and stop a generator engine. It will indicate the operational status and fault conditions, automatically shut down the engine and indicate the start engine failure by a flashing “START FAIL” LED on the front panel. Other faults are indicated by steady LED.Operation of the module is via 2 position maintained toggle switch [RST] mounted on a wall or any other suitable place with ON-OFF positions (customer supplied part). Wireless control of the module is via key fob [optional].

IMPORTANT!

THIS CONTROL MODULE PCB MUST NOT BE CONNECTED DIRECTLY TO STARTER MOTOR, FUEL SOLENOID, LOAD CONTACTOR OR A GLOW PLUG. APPROPRIATELY RATED EXTERNAL POWER RELAYS SHOULD BE USED AS IT IS SHOWN ON THE DIAGRAM PROVIDED.

The starter relay [terminal No 2] can only energize for 2 nd and 3 rd crank cycle if “Low Oil Pressure” is sensed [via terminal No 3], to confirm that the engine is stationary. This is designed to prevent damage to the starter and ring gear in the event of the control module not sensing that the engine has started [i.e. AC Alternator is not connected to terminals 11 and 12].

PIN	CONNOTATION	DEFAULT SETTNG
1	Remote wired start/stop input	N/O maintained
2	Starter motor relay output	Batt. pos. output
3	Oil pressure switch input	N/C (if engine is not running)
4	Emergency stop switch input	N/O type
5	Fuel solenoid relay output	Batt. pos. output
6	Engine temperature switch input	N/O type
7	Battery positive power supply (+)	6...40Vdc
8	Battery negative power supply (–)	Common wire
9	Glow plug relay output (optional)	Batt. pos. output
10	Load control relay output (optional)	Batt. pos. output
11	Generator live input (L)	100~300Vac
12	Generator neutral input (N)	100~300Vac
The relays supply positive plant supply out.

AECM105V specification

DC Supply: generator battery 12V or 24V (6...40Vdc)
Max. standby current: 10mA @12Vdc
AC voltage input max: 300Vac
Under speed S/D @ 30Hz (45Hz for USA and Canada)
Over speed S/D @ 57Hz (69Hz for USA and Canada)
Number of attempts: 3 (user-configurable prior to order)
Crank duration: 12sec (automatically regulated via sensing AC alt.)
Pre-heat time: 10sec (user-configurable prior to order)

Load On/Off delay: 60sec (user-configurable prior to order)
Hold-off time*: 7sec (user-configurable prior to order)
Starter / Fuel / Glow / Load relay output: 3.0A max (by-pass relays required)
Dimensions: 75X61X25mm
Operating temperature range: -30 to +70°C
Humidity Range Operating: 20-80%

DESCRIPTION

WIRED REMOTE / LOCAL CONTROL
Toggle switch RST is On (closed)
0.5 Second after the fuel relay is energized [terminal 5], the 3 attempt start will begin its start sequence: the start relay will energize, feeding battery +ve (on terminal 7 to terminal 2 and thence on to the start circuit. If the engine has not fired by the end of 1st attempt, the starter is turned off for a resting period. The sequence will then repeat up to a maximum number of start attempts. Following a successful start, sensed when AC alternator's voltage rises above 40% of nominal, the start relay is de-energized and latched out to prevent reengagement of the starter with the engine running.
PRE-HEAT CONTROL (optional)
GLOW jumper is fitted
10 second after the pre-heat relay is energized (flashing LED on the panel is indicating pre-heating process), feeding battery +ve on terminal 7 to terminal 9 and thence on the pre-heat circuit, the module will begin its start sequence: the fuel solenoid relay is energized [terminal 5], feeding battery +ve on terminal 7 to terminal 5 and thence to the fuel solenoid circuit, the start relay will energize, feeding battery +ve on terminal 7 to terminal 2 and thence on to the start circuit. If the engine has not fired by the end of 1st attempt, the starter and the glow plug are turned off for a resting period. The sequence will then repeat up to a maximum number of start attempts. Following a successful start, sensed when AC alternator's voltage rises above 40% of nominal, the crank relay is de-energized and latched out to prevent reengagement of the starter with the engine running.
LOAD CONTROL (optional)
After a successful start, when engine's parameters are settled (when time delay provided by hold-off timer* is timed out) then warm-up time delay is timed out, the load control relay (output 10) will energise feeding +Ve on terminal 7 to terminal 10 and thence to an external power relay which will connect the AC alternator output to the load. The engine warm-up time delay (run time before energising contactor) and the engine cool-down time delay (run time after de-energising contactor) are reprogrammable with a limit of 255 sec (4.25 min) max. for each delay timer. Please note: running generator is ready to accept the load again if the remote start signal from wired remote start (terminal 1) / Key Fob is switched back on during cool-down period.
WIRELESS CONTROL VIA KEY FOB (optional)
Toggle switch RST is Off
Make sure there are no metal doors/walls/other metal shields between you and AECM105V module. Any metal/brick wall can significantly reduce the working distance. Press red button on a key fob for 1 sec and release it. The generator should try to start within a few seconds. If your generator doesn’t respond - try to stretch out the aerial on key fob and press red button again. If unsuccessful- come closer to AECM105V module. To stop it-press red button.
Wireless transmitter/receiver specification Receiver: internally fitted pcb. Transmitter/Receiver working frequency: 315Mhz Number of channels: 2 Encoding type: fixed code

RELAY OUTPUTS ARE PROVIDED FOR:	CONFIGURABLE INPUTS ARE AVAILABLE FOR:
» Starter Motor Output » Fuel Solenoid Output » Glow Plug Output (optional) » Load Control Output (optional)	» Wired remote start/stop » High engine temperature » Oil pressure » Emergency stop » AC alternator monitor
MULTIPLE ALARM CHANNELS ARE PROVIDED TO MONITOR THE FOLLOWING:
» Under/Over speed S/D (speed fault). This alarm sensor can be enabled/disabled via SPEED jumper. » Low oil pressure S/D. “LOW OIL” led is lit when fault is identified. » High engine temperature S/D. “HET/GL” led is lit when fault is identified. » Fail to start S/D. “ST.FAIL” led is lit when fault is identified. » Emergency stop S/D. E. STOP led is lit when fault is identified.
* During engine cranking and for a short time afterwards the protective hold-off timer is active and the relevant alarms inputs are inhibited. This enables the engine to start and achieve normal running conditions. Once the timer has expired, the inputs are enabled providing normal protection from the module.

PCB CONFIGURATION