Fitting Class A Filters To A Standard Unfiltered Ip56 Eco Unit (Frame Sizes 4 To 7) - Siemens Midimaster Eco Reference Manual

EMC
Fitting a Class A Filter to a Standard Unfiltered IP56 Eco Unit
(Frame Sizes 4 to 7)
Generally the IP56 Eco Units can be ordered with internal factory fitted class A EMC filters
(see Section % for ordering details). However, if a filter needs to be fitted to the standard
unfiltered IP56 Eco unit, then there are mounted studs provided within the IP56 enclosure
for installing the recommended class A filter.
Class B EMC Filters cannot be installed within the IP56 Eco unit.
Fitting of Accessory Filter (Frame Sizes 4, 5
and 6, IP56)
The installation procedure is as follows:-
1. Unpack the filter and prepare the
connecting cable. Trim the screen back so
that it will not obstruct the connection of the
cables into the mains input terminals (L1,
L2, L3 & E) of the inverter.
2. Cover the loose strands of the cable
screen with either a short length of heat
shrink sleeve or some insulation tape.
This is to ensure that the screen is tidy and
loose strands will not cause a nuisance.
3. Fit the filter to the studs provided in the
IP56 case and bolt down.
4. Screw the three power cables and the
earth connection into the supply input
terminals (L1, L2, L3 and E) of the inverter.
The screen over the cable that leaves the filter
is not used in this type of installation. It is only
required if the filter is to be fitted to an IP21
rated inverter as an external filter.
12-10
ECO REFERENCE MANUAL
Filter mounted within the IP56 MIDIMASTER
Eco Frame size 4, 5 & 6