The bus bars on models MCD5-0360C - MCD5-1600C can be adjusted for top or bottom input and output as required. For
step-by-step instructions on adjusting the bus bars, refer to the supplied insert.
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7
H
A
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.1
1
Illustration 4.3
I/O
Input/Output
I
Input
O
Output
Table 4.4
4.2 Motor Connection
MCD 500 soft starters can be connected to the motor in-
line or inside delta (also called three-wire and six-wire
connection). The MCD 500 will automatically detect the
motor connection and perform the necessary calculations
internally, so it is only necessary to program the motor full
load current (
1-1 Motor FLC
).
NOTE
For personnel safety, the power terminals on models up to
MCD5-0105B are protected by snap-off tabs. When using
large cables, it may be necessary to break off these tabs.
Models which are internally bypassed do not require an
external bypass contactor.
4.2.1 Testing the Installation
The MCD 500 can be connected to a small motor for
testing. During this test, the soft starter's control input and
relay output protection settings can be tested. This test
mode is not suitable for testing soft starting or soft
stopping performance.
The minimum motor FLC for test purposes is 2% of the
soft starter's minimum FLC (see
).
NOTE
When testing the soft starter with a small motor, set
1-1
Motor FLC
to the minimum allowable value.
Electrical Installation
MCD 500 Operating Instruction
MG17K402 - VLT
®
is a registered Danfoss trademark
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