bnp-b2365(eng)b.pdf - 第75页

2. Wiring and Connection 2 - 36 (3) When using one pow er supply shared by tw o NC communication bus systems The axis connected to the power supply unit' s CN4 connector becomes the power supply unit control axis. M…

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2. Wiring and Connection
2 - 35
(2) When using two or more power supply units within a single NC communication bus system
Install a no-fuse breaker and a contactor for each of the power supply units.
MC1
T
S
R
Contactor
No-fuse
breake
r
Ground
CN1A
CN4
L1
L2
L3
L11
TE3
TE1
CN1B
L+
L-
MDS-C1-SPMDS-C1-CV
CN4
TE3
TE2
L+
L-
L11
L21
TE2
AC
reactor
Ground
Ground
L21
CN1A
CN1B
MDS-C1-V1/V2
TE3
TE2
L+
L-
L11
L21
Ground
To N C
MC
Breaker
MC1
T
S
R
Contactor
No-fuse
breake
r
Ground
: Main circuit
: Control circuit
CN1A
CN4
L1
L2
L3
L11
TE3
TE1
CN1B
L+
L-
MDS-C1-SPMDS-C1-CV
CN4
TE3
TE2
L+
L-
L11
L21
TE2
AC
reactor
Ground
Ground
L21
CN1A
MDS-C1-V1/V2
TE3
TE2
L+
L-
L11
L21
Ground
MC
Breaker
CAUTION
1. An AC reactor and breaker are required for each power supply unit.
2. 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.
2. Wiring and Connection
2 - 36
(3) When using one power supply shared by two NC communication bus systems
The axis connected to the power supply unit's CN4 connector becomes the power supply unit
control axis.
MC1
T
S
R
Contactor
No-fuse
breake
r
Ground
CN4
L1
L2
L3
L11
TE3
TE1
CN9
L+
L-
MDS-C1-SPMDS-C1-CV
CN4
TE3
TE2
L+
L-
L11
L21
TE2
AC
reactor
Ground
Ground
L21
MDS-C1-V1/V2
TE3
TE2
L+
L-
L11
L21
Ground
MC
Breaker
CN4
MDS-C1-V1/V2
TE3
TE2
L+
L-
L11
L21
Ground
MDS-C1-V1/V2
TE3
TE2
L+
L-
L11
L21
Ground
CAUTION
1. If the two NC communication bus systems include a spindle drive unit,
connect the power supply unit's CN4 connector to the CN4 connector of the
largest-capacity spindle drive unit. If there is no spindle drive unit, connect to
the unbalance-axis servo drive unit.
2. 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.
2. Wiring and Connection
2 - 37
2-5-2 Connecting the grounding cable
(1) Connecting the protective grounding (PE) and frame ground (FG)
Each unit has a terminal or mounting hole to connect PE (
) or FG.
Please connect an earth wire to the main ground of a cabinet or a machine frame at one point.
Ground each device according to the grounding conditions set forth by each country. (Typically, a
Y-connection neutral point ground is used in Europe.)
PE: Grounding to provide protection from electric shock, etc.
FG: Grounding to stabilize the operation of the devices, etc. (Suppress noise)
MDS-C1-V1/V2/SP
MDS-C1-CV
B-AL
SJ Series motor
HC Series motor
Grounding plate
POINT
Do not connect the grounding cable from
each unit directly to the grounding plate.
Noise from other units could result in
malfunctions.
(2) Grounding cable size
Earth wire size should follow the following table.
Type Grounding cable size (Required grounding)
MDS-C1-CV Unit Larger than thickness of wire connected to TE1 (L1/L2/L3). (PE)
MDS-C1-V1/V2/SP[] Unit Larger than thickness of wire connected to TE1 (U/V/W). (PE)
B-AL (AC Reactor) 5.5 mm
2
(AWG10) or more (FG)
Unit
Grounding
plate
Unit
Grounding
plate