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Original installation and operating instructions.
CONTENTS
1.
Application - 4
2.
Before installation - 4
3.
Installation - 4
3.1
Mounting of EMC filter - 4
3.2
Electrical connection - 4
3.3
Connection of EMC filter - 5
3.4
Connection of EMC filter to motor terminal box - 5
4.
Disposal - 5
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.
1. Application
An EMC filter is used for the purpose of reducing electrical noise.
To meet EN 55011, limit B, Grundfos MMGE motors, 11-22 kW,
require an EMC filter.
2. Before installation
Check that the filter kit contains:
•
1 EMC filter for max. 50 A contained in aluminium cabinet.
For connection to the motor terminal box:
•
1 reducer from M40 x 1.5 to M32 x 1.5
•
1 EMC nut M40 x 1.5
•
1 EMC cable gland M32 x 1.5
•
installation and operating instructions.
3. Installation
3.1 Mounting of EMC filter
Mount the filter on an even surface. See sketch of installation
principle in fig. 2.
The length and width of the cabinet are shown on the back of the
cabinet. See dimensional sketch in fig. 1.
362
Fig. 1
Dimensional sketch
4
3.2 Electrical connection
The electrical connection must be carried out according to local
regulations.
Warning
Never make any connections in the motor
terminal box unless the power supply has been
switched off for at least 5 minutes. Make sure that
the power supply cannot be accidentally
switched on.
The terminal box contains capacitors that have to
discharge.
The motor may be hot for a while after being
switched off.
3.2.1 Cables
Filter and motor must be connected with a screened cable.
See fig. 2, pos. 1.
The ends of the screened cable must be terminated with EMC
cable glands to ensure correct functioning of the filter.
See sections 3.3 Connection of EMC filter and 3.4 Connection of
EMC filter to motor terminal box.
The screened cable is not included in the filter kit.
Make sure that the screened cable has at least the same current
value as the mains cable. See fig. 2, pos. 2.
1
Fig. 2
Installation principle
2
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