System Wiring Diagram - Delta VFD007FP4EA-41 User Manual

4-2 System Wiring Diagram

Power input terminal
NFB or fuse
Electromagnetic
contactor
AC reactor
(input terminal)
Zero-phase
reactor
EMI filter
E
R/L1 S/L2 T/L3
U/T1 V/T2 W/T3
Zero-phase
reactor
AC reactor
(output terminal)
Motor
Power input
terminal
NFB or fuse
Electromagnetic
contactor
AC reactor
(input terminal)
+
B1
B2
-
E
Zero-phase
reactor
EMI filter
Brake resistor Used to shorten deceleration time of the motor.
AC reactor
(output terminal)
Chapter 4 Wiring|CFP2000 Series
Please supply power according to the rated
power specifications indicated in the manual
(refer to 9 Specifications Table).
There may be a large inrush current during
power on. Refer to 7-2 NFB to select a suitable
NFB or fuse.
Switching ON/OFF the primary side of the
electromagnetic contactor can turn the integrated
elevator device ON/OFF, but frequent switching is
a cause of machine failure. Do not switch ON/OFF
more than once an hour. Do not use the
electromagnetic contactor as the power switch
for the integrated elevator drive; doing so will
shorten the life of the integrated elevator drive.
When the main power supply capacity is
greater than 500kVA, or when it switches
into the phase capacitor, the instantaneous
peak voltage and current generated will
destroy the internal circuit of the integrated
elevator drive. It is recommended to install
an input side AC reactor in the integrated
elevator drive. This will also improve the
power factor and reduce power harmonics.
The wiring distance should be within 10m.
Please refer to 7-4.
Used to reduce radiated interference, especially
in environments with audio devices, and reduce
input and output side interference.
The effective range is AM band to 10MHz.
Please refer to Appendix 7-5.
Can be used to reduce electromagnetic
interference.
Please refer to 7-1.
The wiring length of the motor will affect the size
of the reflected wave on the motor end. It is
recommended to install an AC reactor when the
motor wiring length is greater than 20 meters.
Refer to 7-4.
4-5