8. Measurement and Power
Supply Wiring
8.1. General
To ensure proper function:
• Use grounding terminals.
• Wiring for binary inputs and analog inputs must not be run with power cables.
• Analog and binary inputs should use shielded cables, especially when the length is
more than 3 m.
Tightening torque, allowable wire size and type, for the Field-Wiring Terminals:
• For Mains(Bus) Voltage, Generator Voltage a Current terminals
o Specified tightening torque is 0,56Nm (5,0 In-lb)
o Use only diameter 2,0-0,5mm (12-26AWG) conductor, rated for 90°C
minimum.
• For other controller field wiring terminals
o Specified tightening torque 0,79Nm (7,0 In-lb)
o Use only diameter 2,0-0,5mm (12-26AWG) conductor, rated for
75°C minimum.
o Use copper conductors only.
8.2. Grounding
The shortest possible piece of wire should be used for controller grounding. Use cable min.
2.5 mm
2
. A brass M4x10 screw with star washer securing ring type grounding terminal shall
be used.
The negative “-” battery terminal must be properly grounded.
Switchboard and engine must be grounded at a common point. Use as short a cable
as possible to the grounding point.
8.3. Power supply
To ensure proper function:
• Use power supply cable min. 2,5mm
2
• Use fuse
o 1 amp for IM-NT
o 2 amps for IM-NT-BB or IM-NTC-BB
• Maximal continuous DC power supply voltage is 36VDC.
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