Installing The Transformers On Vfas1 - Toshiba TOSVERT VF-AS1 Instruction Manual

1.4.4 Installing the transformers on VFAS1

As for VFAS1-6110KPC and above, the transformer unit(TRS) and Inverter are put in one packing box.
The procedure that takes out TRS from a packing box and installation procedure to a panel are described
by the additional manual.
TRS is a transformer for supplying a power supply to cooling fans.
The diagram below is the connection between TRS and cooling fans.
1
Three-phase
500~690V-50/60Hz
MCCB
Three-phase
400~480V-60Hz
400~440V-50Hz
*2
External fan
*1: The connecting positions of X2A and X2B are different between 500/600V and 690V input power source.
⇒ For more details, refer to A-15.
*2: It is necessary to change the connection of the fan power supply inside of the inverter when you drive
the cooling fan by an external power supply.
⇒ For more details, refer to A-16,17.
TRS (Transformer unit)
Transformer for
Fan power supply
PFL
MC
R/L1
S/L2
T/L3
RO
SO
TO
power supply
Fan
VFAS1-6110KPC and above
X0
*1
*1
X2
U/T1
V/T2
W/T3
*2
∞
A-14
Connectors for Fan
power supply
IM
E6581528