BE124 TERMINAL DESCRIPTION
IN THIS PAGE ALL DETAILS ABOUT THE CONNECTIONS OF THE BE124 GENSET CONTROLLER
WARNING! By opening the secondary circuit of the C.T.’s you can generate a dangerous voltage. Never disconnect a connection of a CT when the generator is working. You can seriously damage the controller and putting yourself in a serious risk of electrical shock.
[1] VOLTAGE INPUTS
[2] ANALOG/DIGITAL INPUTS
[3] RS485 PORT
[4]CANBUS PORT
[5] BATTERY MINUS
[6] BATTERY PLUS
[7] STARTER
[8] DASH BOARD
[9] DIGITAL OUTPUTS
[10] CTs CONNECTION
Connector JA Generator Voltage Input Sensing |
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JA-1 |
Generator Voltage 600Vac max Phase-Phase |
L1 |
You are required to connect these terminals to the generator. We recommend that you protect the cables and connections by using 1A (fast blow) fuses. |
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JA-2 |
L2 |
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JA-3 |
L3 |
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JA-4 |
N |
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Connector JB RS485-Modbus RTU Serial Interface |
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JB-1 |
Common Ground |
RS485 serial interface Port. Consult the Be-485/USB converter User Manual for information. We recommend that you use Belden 9841(or similar) twisted pair cable. |
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JB-2 |
SIGNAL B |
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JB-3 |
SIGNAL A |
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JB-4 |
Termination 120 OHM |
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Connector JC: Analog & Digital Configurable Inputs |
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JC-1 |
Magnetic Pickup (-) / W |
You can connect a magnetic pickup to detect the speed of the engine. As option, if pickup is not available, you can connect the 'W' terminal of the charger alternator to JC-1. In this case connect terminals JC-2 & JC-3 together by using a short wire. You are required to set the number of teeth in the parameter [PICKUP/W RATIO] (see section11.5.5). |
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JC-2 |
Magnetic Pickup (+) |
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JC-3 |
W Enable |
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JC-4 |
GND Compensation (Ground Sense)
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This is a mandatory connection if the Be124 it is more than 5 meters away from the engine. You are required to connect terminal JC-4 to the body of the engine (a solid connection is required). If the engine is closer, you can connect JC-4 to battery minus. If you do not use an analog sensor (only digital inputs) you can leave this terminal open.
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JC-5 |
Fuel Level Sensor or Switch
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This input monitors the Fuel Level sensor. See section 11.6 to set an alarm and table 11.10 for the programmable response curve. Factory programming sets the input in digital mode (you are required to connect a switch). To enable the analog mode, you are required to set at least one alarm (Low/High fuel) and connect the ground sense JC-4.
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JC-6 |
Temperature Sensor or Switch |
This input monitors the Temperature sensor. See section 11.4.10-11 to set an alarm and table 11.10 for the programmable response curve. Factory programming sets the input to digital mode (you are required to connect a switch). To enable the sensor mode you are required to set one alarm (Low or High temperature) and connect the ground sense JC-4. |
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JC-7 |
Oil Pressure Sensor or Switch |
This input monitors the Oil Pressure sensor. See section 11.4.11 to set an alarm and table 11.10 for the programmable response curve. Factory programming sets the input to digital mode (you are required to connect a switch). To enable the sensor mode you are required to set one alarm (Low pressure warning or shutdown) and connect the ground sense JC-4. |
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JC-8 |
Configurable Digital Input 3
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You can connect switches. Each input can be configured via software: see table 11.8 for the available options. You have options for normally closed or normally open contacts. The other side of the switches must be connected to battery minus terminal (or ground, supposing that battery minus is properly grounded). |
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JC-9 |
Configurable Digital Input 2
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JC-10 |
Configurable Digital Input 1
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Generator controller terminal description: Canbus Port (SAEJ1939 Compliant) |
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JD-1 |
Common Ground |
Canbus serial interface port (consult your engine manufacturer for the connections) |
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JD-2 |
Signal L |
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JD-3 |
Signal H |
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JD-4 |
Termination 120 OHM |
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Generator Current Inputs & Earth Fault Sensing |
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WARNING! Do not disconnect this plug when the engine is running. By opening the secondary circuit of the C.T.’s you can generate a dangerous voltage. Never disconnect a connection of a CT when generator is working. You can seriously damage the controller and putting yourself in a serious risk of electrical shock. |
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JE-1 |
Current Transformer L1 (S1) |
Inputs for the Current Transformers. The nominal Current is 5A. To program the size see section 11.3.12
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JE-2 |
Current Transformer L2 (S1) |
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JE-3 |
Current Transformer L3 (S1) |
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JE-4 |
Earth Fault sensing C.T. (S1) |
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JE-5 |
Current Transformer Common (S2's) |
S2 terminal of each CT must be grounded |
PRE-CONFIGURED AND PROGRAMMABLE DIGITAL OUTPUTS
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Generator controller terminal description: PNP Static Outputs (Positive Output Logic) |
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JF-1 |
D+ / W.L. Input/Output |
It provides 3W excitement for the charger alternator monitoring. |
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JF-2 |
Not Connected |
Not to be used |
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JF-3 |
Configurable Output 2 |
It drives an auxiliary relay with a configurable function (see 11.9) |
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JF-4 |
Configurable Output 1 |
It drives an auxiliary relay with a configurable function (see 11.9) |
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JF-5 |
GCB Output |
It drives the auxiliary relay of the Generator Circuit Breaker |
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JF-6 |
Alarm Output |
It drives the Horn via an auxiliary relay |
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JF-7 |
Start Pilot output |
It drives the Starting Motor via a start pilot relay |
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JF-8 |
Fuel Solenoid output |
Energized to run output for Fuel solenoid and ancillary circuitry |
KEY SWITCH CONNECTION & POWER SUPPLY
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Generator controller terminal description: Key switch 6,3x0,8mm terminals & power connections |
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30 |
Plus Battery Vdc supply (DC plant supply) |
An internal Electronic 300mA Thermal Protection is provided. If you have provision to use the Manual Start (terminal 50) we recommend that you provide a proper size of the cable (4.0 up 6.0 sq.mm or 10-14AWG).
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-BT |
Battery minus supply (DC plant supply) |
Should be connected straight to the battery minus. We recommend that you use a wire with minimum size of about 2.5 sq.mm.
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15/54 |
Auxiliary Supply Output |
It could be used for ancillary circuits (dashboard). We recommend that you protect this connection using a 5A fuse (fast blow). It provides a voltage only when you turn the key to ‘ON’. |
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50 |
Start (30Amps) output |
This should be connected in case you use only the manual mode (no provision of AUTO mode). The simultaneous use of terminal ‘50’ and a ‘Start Pilot Relay’ (connected to JF-7) may severely damage the engine. |