Operation Manual – AXA 2400 Compact Power– 30 - 90 kVA
General Description
Document no. 578.650BB
Page 11 of 91
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Interface for individual overload protection (X20).
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Neutral Voltage Supervision.
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Neutral Conductor Rupture supervision.
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Door Interlock (X27).
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Earth Leakage Failure via (X22) and current sensor on ground wire from 400 Hz neutral.
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Interface for RS232.
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EEPROM (X34) contains the unique identity key for the Hobart
PoWerMaster®
2400
Supply Module (G1):
The generation of the 24 VDC / 10 A (Adjusted from factory to 25 Volt) regulated control voltage
is
done by the Supply Module G1. This module has a wide input range (340-575 VAC). It is supplied via
the capacitor module and pre-fused from the 3-phase circuit breaker Q4.
Control Board (A1):
The Control Board is based on a micro-controller and a digital signal processor (DSP). Together they
regulate, supervise and diagnose possible external and internal faults. As soon as the ground power unit
is connected to the mains, and constantly during normal operation, the Control Board runs through a
self-check program which checks all internal functions
of the ground power unit. If an internal or external
error is detected, the display shows the nature of the
error. All immediate parameters related to a shut-down
are stored in the ground power unit’s memory. The
Control Board has an on-board Ethernet RJ45
connector, which can be used to communicate with the
BMS (Building Management System) and USB host
Type A connection to retrieve data from the converter
or to up-date the software.