MDS-C1-SPA Series INSTRUCTION MANUALib1500152(eng)a.pdf - 第47页
2. Wiring and Connection 2 - 19 (3) When connecting one pow er supply unit with tw o spindle drive units Only the spindle drive unit connected to the pow er supply unit's CN4 connector becomes the power supply unit …
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.
2. Wiring and Connection
2 - 20
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-SPA(No.1)
MDS-C1-CV
B-AL
SJ Series motor
Grounding plate
MDS-C1-SPA(No.2)
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-SPA[] 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