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MDS-D2/DH2 Series Instruction Manual
2.6 Connection of Power Supply
(2) When using two or more power supply units within a single NC communication bus system
Install a circuit protector and a contactor for each of the power supply units.
CAUTION
1. An AC reactor and circuit protector are required for each power supply unit.
2. Install the spindle drive unit of large capacity adjacent to the power supply unit, and connections for other drive units
should be such that the total TE2 wiring length is 800mm or less.
3. Make sure that the total capacity of the drive units connected to the same power supply unit meets the unit's selected
capacity and connect the CN4 of the drive unit, which is used as a final axis (when a spindle drive unit is included,
spindle drive unit), with that of the power supply unit.
4.Confirm that the power supply units are not connected with each other through the TE2(L+,L-) wiring before turning the
power ON.
MC2
T
S
R
CN1A
CN4
L1
L2
L3
L11
TE3
TE1
CN1B
L+
L-
CN4
TE3
TE2
L+
L-
L11
L21
TE2
L21
CN1A
CN1B
TE3
TE2
L+
L-
L11
L21
To NC
MC
MC2
6
5
4
CN1A
CN4
L1
L2
L3
L11
TE3
TE1
L+
L-
CN4
TE3
TE2
L+
L-
L11
L21
TE2
L21
CN1A
TE3
TE2
L+
L-
L11
L21
MC
MC1
CN23
MC1
CN23
CN1B
MDS-D2/DH2-CV MDS-D2/DH2-SP/SP2 MDS-D2/DH2-V1/V2/V3
MDS-D2/DH2-CV MDS-D2/DH2-SP/SP2 MDS-D2/DH2-V1/V2/V3
Contactor
Circuit
protector
Ground
AC
reactor
Ground
Ground Ground
Contactor
Circuit
protector
Ground
: Main circuit
: Control circuit
AC
reactor
Ground
Ground Ground
Circuit
protector
Circuit
protector
: Ground