Toshiba Tosvert VF-AS1 - Manual (Page 225)

E6581301
I-5
9
(Continued)
Requirements
Inverter type
PWM carrier
frequency
EH
(kHz)
Length of
motor
connecting
cable
(m)
Transmission noise
EN55011 Class A Group 1
Applicable filters
Transmission noise
Class B Group 1
Applicable filters
100 EMF3-4090F EMF3-4090F
4
300 EMF3-4090F -
100 EMF3-4090F EMF3-4090F
VFAS1-4220PL
16
200 EMF3-4090F -
100 EMF3-4092G EMF3-4092G
4
300 EMF3-4092G -
100 EMF3-4092G EMF3-4092G
VFAS1-4300PL
16
200 EMF3-4092G -
100 EMF3-4092G EMF3-4092G
2.5
300 EMF3-4092G -
100 EMF3-4092G EMF3-4092G
VFAS1-4370PL
16
200 EMF3-4092G -
100 EMF3-4180H EMF3-4180H
2.5
300 EMF3-4180H -
100 EMF3-4180H EMF3-4180H
VFAS1-4450PL
16
200 EMF3-4180H -
100 EMF3-4180H EMF3-4180H
VFAS1-4550PL 2.5
300 EMF3-4180H -
100 EMF3-4180H EMF3-4180H
2.5
300 EMF3-4180H -
100 EMF3-4180H EMF3-4180H
VFAS1-4750PL
16
200 EMF3-4180H -
VFAS1-4900PC~
VFAS1-4500KPC
Contact your supplier.
(2) Use shielded cables for the power and control cables, including filter input cables and inverter output cables. Route
the cables and wires so as to minimize their lengths. Keep a distance between the power cable and the control
cable and between the input and output wires of the power cable. Do not route them in parallel or bind them
together, instead cross at right angle.
(3) Install the filter and the inverter in an enclosed steel cabinet. Earth the cabinet body securely with the thickest and
shortest possible electric wire installed away from the power cables.
(4) Route the EMC filter input and output wires apart from each other.
(5) To limit the radiation noise from cables, earth each shielded cable to the noise cut plate. It is effective to earth
shielded cables in the vicinity of the inverter and filter (within a radius of 10cm from each of them). Inserting a ferrite
core in a shielded cable is even more effective in limiting the radiation noise.
(6) To further limit the radiation noise, insert a zero-phase reactor in the inverter output line and insert ferrite cores in
the earth cables of the noise cut plate and cabinet.