Toshiba Tosvert VF-AS1 User Manual
Page 227
E6581301
I-7
9
[Operation with external signals]
When using signals from an external control device to operate the inverter, take the measures shown in Figure 3.
Ex.) When using the potentiometer and forward run/reverse run terminals
Ferrite core 1
Shielded cable or [Note 1]
Fig. 3
[Accessories for countermeasure]
□ Recommended shield cable
: Showa electric Wire & Cable Co., LTD
Type : CV-S
Rating : 600V or less
Cross-sectional area : 2~1000mm
2
If it is difficult to procure shielded cables, protect cables with conduit tubes.
□ [Note 1] Recommended shield : SUMITOMO 3M Limited, Electromagnetic wave guard shielding sleeve
Type : DS-5, 7, 10, 14
□ EMI filter
: SCHAFFNER
Type : FN258/FN3258/FN359/FN3359/FS5992 series
□ Recommended ferrite core 1
: TDK Corporation
Type : ZCAT3035-1330
Use the following, as required.
□ Recommended ferrite core
: NEC TOKIN Corporation
Type : ESD-R-47D-1
□ Zero-phase reactor
: Soshin Electric Co., Ltd.
Type : RC5078 or RC9129
□ High-attenuation radio noise reduction filter
: Soshin Electric Co., Ltd.
Type : NF series
9.1.3 Low-voltage directive
The low-voltage directive provides for the safety of machines and systems. All Toshiba inverters are CE-marked in
accordance with the standard EN 50178 specified by the low-voltage directive, and can therefore be installed in
machines or systems and imported without a problem to European countries.
Applicable standard: EN50178
Electronic equipment for use in power installations
Pollution level:
2 (5.2.15.2)
Overvoltage category: 3
200V class, 3.0mm (5.2.16.1)
400V class, 5.5mm (5.2.16.1)
EN50178 applies to electrical equipment intended specially for use in the power installations, and sets out the
conditions to be observed for electric shock prevention when designing, testing, manufacturing and installing
electronic equipment for use in power installations.
9.1.4 Measures to be taken to satisfy the low-voltage directive
When incorporating the inverter into a machine or system, it is necessary to take the following measures so that the
inverter satisfies the low-voltage directive.
(1) Install the inverter in a cabinet and ground the inverter enclosure. When doing maintenance, be extremely careful
not to put your fingers into the inverter through a wiring hole and touch a charged part, which may occur depending
on the model and capacity of the inverter used.