MASTERYS IP+
40-60 kVA 3/1
ITALIANOENGLISH
16
IOMMASIPXX07-GB 02
UNPACKING AND INSTALLATION
OF THE UNIT
3
3.7 CONNECTION OF THE GENERATOR.
If your system uses a generator, connect the “generator set ready” no-potential contact to connector IN 2 on the
optional ADC PCB con gured in standard or power safe mode (see paragraph 3.10). This automatically extends the
voltage and frequency value range when power is supplied by the generator set.
3.8 EXTERNAL E.S.D. CONNECTION.
A remote emergency shutdown system (E.S.D.) can be installed by means of the ADC card. Connect a normally
closed zero-potential contact to terminals IN1+ and IN1- of the ADC card.
3.9 ISOLATION TRANSFORMER.
The MASTERYS
TM
IP model of the MASTERYS
TM
range is tted with an internal isolation transformer.
If an external isolation transformer cabinet is required, the following instructions should be followed:
• The protection cable marked with the ground symbol is connected directly to the distribution panel.
• The transformer can be connected to the UPS inputs only.
The UPS must not operate without the neutral connection to the input.
The transformer cannot be connected to the output on single UPS unit connected in parallel 1+1
redundant con guration.
For details of the connections, refer to the transformer terminal board diagram.
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