Vortice Nordik HVSL Super Blade, Instruction Booklet

Page: 53 / 64

53
Power connection
HVLS fan must be powered by 3F+G 400V 50 Hz through a line realized
with wire kind FG7OR composed 4G2.5 or higher related to present load.
Energy power distribution is composed according to wire diagram supplied.
Power panel protect in MT (magnetotermic protection) line powering HVLS
fan in one single area.
Every single HVLS fans line must be protected.
Power panel must be supplied by a dedicated line 3F+N+G 400V 50 Hz pro-
tected by adequate MT protection (minimum 20 A) and from a protection Dif-
ferential A type.
The PE cable must be connected to a grounding system with impedance and
characteristics such as to ensure the proper operating of the differential pro-
tections installed in accordance with regulations about indirect contact and
no dissipation of stray currents.
Attention: line with MT+D (magnetotermic prot HVLS fan) must
be dedicated and not powered together with other devices. Cannot be deri-
vated from other differential A type.
HVLS fan must be connected with its own connector to signal wire.
Togheter with power wire will be installed analogic signal wire (0-10 v ten-
sion for fan speed control) and modbus signal able to control fan and modify
parameter through a remote PC.
For analogic signal will be used a RS485 wire (2*2*AWG24 twisted and
shielded).
Shilded wire must be provided only from power panel side and not from fan
side.
In case on signal line you are going to install junction boxes to connect sin-
gle fan signal line to main line, between junction boxes and signal connector
from inverter you must use same wire RS485 used for signal line.
For connection and wire colour, you have to follow electric diagram.