Reel FlexiMova mm F0K37 Series, Руководство по проектированию и установке

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9 Configuration of the converter for IT
66 of 80
FlexiMova
®
mm - Design and Installation
9 Configuration of the converter for IT network
The IT network is also commonly referred to as “isolated power supply ”
as the star point of the IT power supply is not grounded.
This type of power supply uses an isolation controller that constantly monitors
the galvanic isolation between the ground and the various powered parts. The
product is already set up so that it can be adapted to work on these power
supply networks.
To use the product in the IT system the associated jumpers (printed indications)
present in every product model.
This function renders the EMI filter inside the converter ineffective:
consequently to ensure it falls within a specific category alternative
solutions will have to be adopted.
The jumper is typically positioned in the vicinity of the connecting terminal
block between the electric line and the motor.
Figure 35 : IT configuration for size A
Figure 36 : IT configuration for size B
Contact with live parts: residual risk No.1 (see par. 5.12) .
Always disconnect the voltage to the product and wait 10 min.
DANGER
Do not remove any jumpers other than those specified. Figure 35, Figure 36,
Figure 37, Figure 38 and Figure 39, illustrate the layout of the various sizes
with the exact position of the jumpers.
Jumper IT network
Size A
(2 Jumpers present J1
and J2)
Inserted= standard TN
network
Removed = IT network
Jumper IT network
Size B
(1 Jumpers present J1)
Inserted= standard TN
network
Removed = IT network