4
Installation
Deactivate the EMC capacitors (size 0 only)
Operating Instructions Basic Unit – MOVITRAC
®
B
15
4.2
Deactivate the EMC capacitors (size 0 only)
Only electro-technical professionals should carry out any conversions. Once converted,
the unit must be marked with the sticker provided in the accessory bag.
Proceed as follows to deactivate the EMC capacitors for MOVITRAC
®
B:
• Open the unit:
– Remove
all
connectors.
– Remove the electronics shield clamp.
– Remove the housing retaining screw in the center of the housing front.
– Remove the housing.
• Remove the two screws [A] securing the circuit board.
• Install the screws in the provided plastic insulations [B].
Line filter
MOVITRAC
®
B frequency inverters have an integrated line filter as standard. They comply with
the following limit value class to EN 55011 on the line side without further measures:
•
1-phase connection:
B
cable conducted
•
3-phase connection:
A
No EMC limits are specified for interference emission in voltage supply systems
without a grounded star point (IT systems). The effectiveness of line filters is severely
limited.
HD output choke
•
Install the output choke close to MOVITRAC
®
B
beyond the minimum clearance
.
•
Always route all 3 phases (
not PE!
) through the output choke.
•
If the cable is shielded, the shield should
not
be routed through the output choke.
In the case of the
HD
output choke, the cable must be wrapped
around the choke
5 times
.
Only 5 loops are possible if the cable has a large diameter.
To make up for this, 2 or 3 output chokes should be connected
in series. 2 output chokes can be connected in series in case
of 4 windings and 3 output chokes in case of 3 windings.
n = 5
4
5
6
댷
U
V
W
PE
• Disconnect the inverter from the power. Switch off the 24 V DC and the supply
voltage.
• Take appropriate measures to avoid electrostatic charges (use discharge strap,
conductive shoes, etc.) before removing the cover.
• Touch only the unit frame and heat sink. Do not touch any electronic components.
