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2. Wiring and Connection
2 - 34
2-5-1 Power supply input connection
(1) When using one power supply unit
Install the drive unit so that the DC power supply bus (L+, L-) is as near to the power supply unit as
possible. Large-capacity spindle drive units, in particular, should be installed adjacent to the power
supply unit which they control.
AC
reactor
Contactor
MC1
T
S
R
No-fuse
breaker
Ground
: Main circuit
: Control circuit
CN4
L1
L2
L3
L11
TE3
TE1
L+
L-
MDS-C1-SP
MDS-C1-CV
TE3
TE2
L+
L-
L11
L21
TE2
Ground
Ground
L21
MDS-C1-V1/V2
TE3
TE2
L+
L-
L11
L21
Ground
MC
Breake
r
CN4
CAUTION
1. The power supply unit is a power supply regenerative type converter; an AC
reactor is surely installed in the power supply line.
2. When connecting to the TE3 terminal, connect to the power supply side
(primary side) of the AC reactor.
3. Connect the power supply unit's CN4 connector with the spindle drive unit of
the maximum capacity. If there is no spindle drive unit, connect to the servo
drive unit which is the unbalance axis.
4. When installing the units dispersed install the spindle drive unit adjacent to
the power supply unit, and connections for other drive units should be such
that the total TE2 wiring length is 50cm or less.