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2.3 I-Link device
The I-Link device is attached to a LEM current transducer (CT) whose output signal is
measured and converted, for the purposes of transmission over the I-BUS.
It is designed to accommodate up to 2 current sensors: a combined charge/discharge sensor,
and a separate ‘float’ (trickle) sensor.
The I-Link module can be fixed on a wall or panel with two screws (M4), using max. fastening
torque 2.8 Nm or mounted on a metallic DIN Rail thanks to the clip on its back.
Mechanical drawings:
The module is 34.8 mm thick.
Cables are about 50 cm long
It requires external power supply in range 18-34V.
Connection toward power supply:
Wire colour
Meaning
Red
Power Supply (18-34V)
Black
Ground
Connection toward CT:
Wire colour
Meaning
Red
Power 15V
Dark blue
Power Supply –15V
Yellow
CT output
Black
CT return (0V)
In the large offer of LEM current transducers, some products are more suitable for
charge/discharge measurement (bipolar and large range).
1
3
2
Cables identification:
1: CHRG/DIS CT
2: POWER Supply
3: FLOAT CT
