1-22 ACH550-UH User’s Manual
Installation
The following diagram shows the power and ground terminal layout for frame size
R7 (R8 is similar).
Disconnecting the internal EMC filter
On certain types of systems, you must disconnect the internal EMC filter, otherwise
the system will be connected to ground potential through the EMC filter capacitors,
which might cause danger, or damage the drive.
Note: When the internal EMC filter is disconnected, the drive is not EMC compatible.
The following table shows the installation rules for the EMC filter screws in order to
connect or disconnect the filter, depending on the system type and the frame size.
For more information on the different system types, see Floating networks on page
1-306 and Unsymmetrically grounded networks on page 1-305.
Ground Lug
Bar
ACH550
R7
Motor
Terminals
Input Power
Terminals
Control Wires
(X1)
Terminal Strip
Only on
ACH550-UH
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