Rm-materials-handling VARIABLE SPEED CONTROLS ControlMaster NXT Service Bedienungsanleitung PDF herunterladen (Seite 18)

R&M Materials Handling, Inc.

4501 Gateway Boulevard

Springfield, Ohio 45502

P.: (937) 328-5100

FAX: (937) 325

5319

18/53

R&M Materials Handling, I

nc. reserves the right to alter or amend the above information without notice.

4.3.6 EMC

The frequency converter has an internal EMC filter in the power supply. By default, the EMC level of the frequency

converter is set to N by the manufacturer.

If the mains network is non-grounded (IT-network), the frequency converter’s EMC level shall be changed to 0 by

removing the filter capacitor disconnection screw.

Note: The filter capacitor disconnection screw cannot be replaced after it has been removed.

NOTICE

The frequency converter will be irreparably damaged if it is connected to an IT

network before the filter capacitor disconnection screw is removed.

When the EMC-screw is connected, the frequency converter has RC-filters connected to the power supply side to

reduce disturbances to the network. The capacitors of these filters may cause the RCD (Residual Current Device)

to trip. Therefore, the use of RCD with the frequency converter controlled cranes is not recommended.

Motor cable length

To fulfill the European EMC regulations, cable lengths shall not exceed following values:

Longer cable ≤ 40 m

Shorter cable ≤ 7 m.

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 52 53

Keine Kommentare

Rm-materials-handling VARIABLE SPEED CONTROLS ControlMaster NXT Service Bedienungsanleitung Seite 18