Installation
11
Installation
What this chapter contains
This chapter contains general note and restrictions to be considered in the
installation, and shows the connections diagrams.
General notes and restrictions
WARNING!
Do not attempt any work on a powered drive. After switching off the
mains, always allow the intermediate circuit capacitors 5 minutes to discharge before
working on the frequency converter, the motor or the motor cable. Check (with a
voltage indicating instrument) that the drive is in fact discharged before beginning
work.
•
Encase the non-enclosed (IP00) filters to meet the safety requirements (for
cabinet installation solely).
•
Beware of hot surfaces. The surface of the IP22/IP54 filter housing can reach a
temperature up to 40 °C higher than the ambient temperature.
•
Use shielded cable between enclosures.
•
Mount the filter on a mounting structure that is of non-flammable material and
strong enough to carry the weight of the filter.
•
Ground the filter to the protective earth (PE) terminal of the cabinet. No separate
grounding conductor is needed if there is proper galvanic connection through the
filter fixing screws and the mounting plate.
•
Maximum allowed drive output frequency:
120 Hz
•
Maximum allowed average switching frequency:
3 kHz (converter units with supply voltage < 500 V) or
2 kHz (converter units with supply voltage > 500 V)
Change the switching frequency with a drive parameter. If there is no such
parameter in the drive sw, apply the settings to be used with long motor cables.
For example, for the ACS850 drive, set parameter 40.01 Motor noise to value
Default.
•
Maximum cable length between the drive output and the filter:
3 m
•
Maximum motor cable length
for AOCH0xxx-70 filters:
300 m (cumulative for
several parallel-connected motors)
Summary of Contents for NOCH0070-6 Series
Page 2: ...3AFE58933368 REV G EN EFFECTIVE 2009 09 15 2009 ABB Oy All Rights Reserved ...
Page 6: ...About this manual 6 ...
Page 14: ...Installation 14 Power connection diagrams NOCH0260 60 NOCH0400 60 NOCH0760 60 NOCH0400 60 ...
Page 16: ...Installation 16 NOCH0760 60 ...
Page 17: ...Installation 17 NOCH0400 60 ...
Page 18: ...Installation 18 NOCH0400 60 ...
Page 19: ...Installation 19 AOCH0400 70 AOCH0260 70 ...
Page 27: ...Dimension drawings 27 NOCH0120 60 NOCH0260 60 and NOCH0400 60 du dt kits include 3 filters ...
Page 29: ...Dimension drawings 29 ...