3.6 Wiring
Tightening torque, allowed wire size and type, for the Field-Wiring Terminals:
Based on terminal type:
1. PA256:
SPECIFIED TIGHTENING TORQUE 0.5 NM (4.4 IN-LB)
2. 2EDGK:
SPECIFIED TIGHTENING TORQUE 0.4 NM (3.5 IN-LB)
For field type terminals:
Use only diameter 2.0–0.5 mm (12–26 AWG) conductor, rated for 75 °C minimum.
For Mains (Bus) Voltage and Generator Voltage terminals
Use only diameter 2.0-0.5 mm (12–26 AWG) conductor, rated for 90 °C minimum.
Use copper conductors only.
3.7 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.
3.8 Power supply
To ensure proper function:
Use min. power supply cable of 1.5 mm
2
The maximum continuous DC power supply voltage is 36 V DC. The maximum allowable power
supply voltage is 39 V DC. The InteliCompact’s power supply terminals are protected against large
pulse power disturbances. When there is a potential risk of the controller being subjected to
conditions outside its capabilities, an outside protection device should be used.
It is necessary to ensure that potential difference between the generator current COM terminal
and the battery “-” terminal is maximum ± 2 V. Therefore, it is strongly recommended to
interconnect these two terminals together.
HINT:
The InteliCompact
NT
controller should be grounded properly in order to protect against lighting strikes!!
The maximum allowable current through the controller’s negative terminal is 4A (this is dependent on
binary output load).
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