APC MGE 6739380EN/JC User Manual download pdf (Page 30)

Page 30 - 6739380EN/JC

Signal transmission

These signals are each transmitted by

two volt-free changeover contacts with

a maximum breaking capacity of 5A

250V.

◗ "overload" signal indicates that an

overload has taken place (Pload >

Pnominal in kVA);

◗ "rectifier/charger function fault"

signal indicates that:

◗◗ a fault has taken place in the

rectifier/charger module,

◗◗ Mains 1 input switch Q1 is open;

◗ "inverter function fault" signal

indicates that a fault has taken place in

the inverter module;

◗ "transfer to inverter fault" signal

indicates that the load transfer

conditions from Mains 2 to the inverter

are incorrect;

◗ "transfer to Mains 2 fault" signal

indicates that the transfer to Mains 2

conditions (voltage, frequency or

phase) are incorrect and a forced

transfer will result in a 0.8 second

interruption in the supply of power to

the load;

◗ "rectifier/charger on" signal

indicates the status of the module.

Note:

A Static Switch Cubicle receives only

the following signals:

◗◗ overload,

◗◗ transfer to inverter fault,

◗◗ transfer to Mains 2 fault.

Environment information (cont.)

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APC MGE 6739380EN/JC User Manual Page 30