Danfoss VLT 8000 AQUA Instruções de Operação descarregar pdf (Página 60)

VLT

8000 AQUA

■ RFI switch

ains supply isolated from earth:

If the frequency converter is supplied from an isolated

mains source ( IT mains) or TT/TN-S mains with

grounded leg, the RFI switch is recommended to

be turned off (OFF)

. For further reference, see

IEC 364-3. In case optimum EMC performance is

needed, parallel motors are connected or the motor

cable length is above 25 m, it is recommended

to set the switch in ON position.

In OFF position, the internal RFI capacities (filter

capacitors) between the chassis and the intermediate

circuit are cut off to avoid damage to the intermediate

circuit and to reduce the earth capacity currents

(according to IEC 61800-3).

Please also refer to the application note VLT on

IT mains, MN.90.CX.02. It is important to use

isolation monitors that are capable for use together

with power electronics (IEC 61557-8).

NB!:

The RFI switch is not to be operated with

mains connected to the unit. Check that

the mains supply has been disconnected

before operating the RFI switch.

NB!:

Open RFI switch is only allowed at factory

set switching frequencies.

NB!:

The RFI switch connects the capacitors

galvanically to earth.

The red switches are operated by means of e.g. a

screwdriver. They are set in the OFF position when

they are pulled out and in ON position when they

are pushed in. Factory setting is ON.

Mains supply connected to earth:

The RFI switch must be in ON position in order for the

frequency converter to comply with the EMC standard.

1) Not possible with VLT 8052-8652, 525-690 V.

Position of RFI switches

Compact IP 20/NEMA 1

VLT 8006 - 8 011 380 - 480 V

VLT 8002 - 8 011 525 - 600 V

Compact IP 20/NEMA 1

VLT 8016 - 8 027 380 - 480 V

VLT 8006 - 8 011 200 - 240 V

VLT 8016 - 8 027 525 - 600 V

Compact IP 20/NEMA 1

VLT 8032 - 8 042 380 - 480 V

VLT 8016 - 8 022 200 - 240 V

VLT 8032 - 8 042 525 - 600 V

MG.83.A2.02 - VLT is a registered Danfoss trademark

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 209 210

Comentários a estes Manuais

Sem comentários

Danfoss VLT 8000 AQUA Instruções de Operação Página 60

Comentários a estes Manuais

Manuais e produtos relacionados com Adaptadores e conversores de corrente Danfoss VLT 8000 AQUA