ACS 300 User’s Manual 23
Chapter 4 - Control Connections
The ACS 300 can be controlled by the ACS 300 Control Panel or
by external control signals connected to the terminal block X1 of
the control card. Serial communication interface is available as
an option.
Control Cables
The ACS 300 control cables should be 0.5 to 1.0 mm
2
screened,
multi-core cables.
Note! The control connections of ACS 300 are galvanically
isolated from the mains but not from the frame earth. This is the
factory default setting. The floating I/O is possible by cutting the
0 ohm resistor R191.
EMC
To suppress the radiated RFI emission below the limits mandated
by the EMC Directive, it is important to clamp the control cable at
the entry point, see Figure 3-4 and Figure 3-5. Make it certain
that the screen of the cable makes a solid contact to both parts of
the clamp. Leave the individual unscreened wire loops between
the clamp and the screw terminals as short as possible. Route
the control cable away from the motor cable. Control cables must
be multi-core cables with braid shield.
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