MCD 200 Series
32
MG.17.D3.02 – VLT is a registered Danfoss trademark
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Control Input failure
Overview
The MCD 200 soft starter can be operated by external
2 wire or 3 wire control signals.
External contacts/switches are configured and wired
into control input terminals N1 and N2.
Cause of Control Input failure
External contacts/switches operating the control
inputs must be rated for the control voltage being
used and a continuous current of 100mA.
Incorrect configuration and wiring of the external
contacts/switches to the control input terminals N1
and N2 may cause damage.
If long cable runs are used, wiring must be twisted pair
or shielded cable and must be separated from AC
power cables (minimum distance 300mm).
Testing for Control Input failure
Refer to the Control Input Tests detailed in Section 2.6
of this manual.
CAUTION:
Application of incorrect voltages to the
control inputs may cause equipment
damage and necessitate replacement of
the Main PCB.
ATTENTION
Damage to the control inputs caused by
application of incorrect voltages is not
covered by warranty.
