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2.3.8. LAY-OUT OF THE AUXILIARY POWER SUPPLY TERMINALS
The auxiliary power supply terminals are provided in the Penta models requiring auxiliary power supply links to be used to
power air-cooling systems or to power internal circuits.
Inputs for fan power supply 230Vac/2A
2.3.9. CROSS-SECTIONS OF THE POWER CABLES AND SIZES OF
THE
SAFETY DEVICES
The minimum requirements of the inverter cables and the protective devices needed to protect the system against short-
circuits are given in the tables below. It is however recommended that the applicable regulations in force be observed;
also check if voltage drops occur for cable links longer than 100m.
For the largest inverter sizes, special links with multiple conductors are provided for each phase. For example, 2x150 in
the column relating to the cable cross-section means that two 150mm
2
parallel conductors are required for each phase.
Multiple conductors shall have the same length and must run parallel to each others, thus ensuring even current delivery at
any frequency value. Paths having the same length but a different shape deliver uneven current at high frequency.
Also, do not exceed the tightening torque for the terminals to the bar connections. For connections to bars, the tightening
torque relates to the bolt tightening the cable lug to the copper bar. The cross-section values given in the tables below
apply to copper cables.
The links between the motor and the Penta drive must have the same lengths and must follow the same paths. Use 3-
phase cables where possible.
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