MDS-C1-SPA Series INSTRUCTION MANUALib1500152(eng)a.pdf - 第46页

2. Wiring and Connection 2 - 18 (2) When using two pow er supply units, and connecting one spindle driv e unit w ith each pow er supply unit Install a no-fuse breaker and a contactor for each of the power supply units. I…

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2. Wiring and Connection
2 - 17
2-5 Connection of power supply
CAUTION
1. Make sure that the power supply voltage is within the specified range of each
unit. Failure to observe this could lead to damage or faults.
2. For safety purposes, always install a No-fuse breaker (NFB), and make sure
that the circuit is cut off when an error occurs or during inspections.
3. The wire size will differ according to each drive unit capacity.
4. For safety purposes, always install a magnetic contactor (contactor) on the
main circuit power supply input. Large rush currents will flow when the power
is turned ON.
5. A semiconductor element is used in the power supply unit's magnetic contact
drive circuit, and a surge absorber is installed to protect the element.
Therefore, a leakage current of approx. 15mA is passed. Confirm that the
exciting coil in the magnetic contact will not function at 15mA or less.
2-5-1 Power supply input connection
(1) When using one power supply unit
Install the drive units so that the distance between power supply unit and spindle drive unit will be
3cm or less.
AC
reactor
Contacto
r
MC1
T
S
R
No-fuse
breaker
Ground
: Main circuit
: Control circ uit
CN4
L1
L2
L3
L11
TE3
TE1
L+
L-
MDS-C1-SPA
MDS-C1-CV
TE3
TE2
L+
L-
L11
L21
TE2
Ground
Ground
L21
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.
2. Wiring and Connection
2 - 18
(2) When using two power supply units, and connecting one spindle driv e unit with each power
supply unit
Install a no-fuse breaker and a contactor for each of the power supply units.
Install the drive units so that the distance between power supply unit and spindle drive unit will be
3cm or less. The installation distance between No.1 and No.2.is not particularly specified.
MC1
T
S
R
Contacto
r
No-fuse
breaker
Ground
CN4
L1
L2
L3
L11
TE3
TE1
L+
L-
MDS- C1-SPA(No.1)
MDS
－
C1
－
CV(No.1)
CN4
TE3
TE2
L+
L-
L1 1
L21
TE2
AC
react or
Ground Ground
L21
MC
Breake
r
MC1
T
S
R
Contacto
r
No-fuse
breake
r
Ground
: Main circuit
: Control circuit
CN4
L1
L2
L3
L11
TE3
TE1
L+
L-
MDS-C1-SPA(No.2)
MDS
－
C1
－
CV(No.2)
CN4
TE3
TE2
L+
L-
L1 1
L21
TE2
AC
react or
Ground
Ground
L21
MC
Breake
r
CAUTION
An AC reactor and breaker are required for each power supply unit.
2. Wiring and Connection
2 - 19
(3) When connecting one power supply unit with two spindle drive units
Only the spindle drive unit connected to the power supply unit's CN4 connector becomes the power
supply unit control axis.
MC1
T
S
R
Contacto
r
No-fuse
breaker
Ground
CN4
L1
L2
L3
L11
TE3
TE1
CN9
L+
L-
CN4
TE3
TE2
L+
L-
L11
L21
TE2
AC
reactor
Ground
Ground
L21
TE3
TE2
L+
L-
L11
L21
Ground
MC
Breake
r
CN4
MDS-C1-SPA(No.3)
TE3
TE2
L+
L-
L11
L21
Ground
MDS-C1-SPA(No.1) MDS-C1-CV MDS-C1-SPA(No.2)
CAUTION
1. When connecting two or more spindle drive units, install the large-capacity
drive units on both sides of the power supply unit.
2. Install units so that the “L+” and “L-” of each unit are in alignment and each
space between units is kept to 3cm or less.