bnp-b2365(eng)b.pdf - 第76页

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…

100%1 / 399
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
2. Wiring and Connection
2 - 38
2-5-3 Main circuit control
(1) Contactor ON sequence
Main circuit power is turned ON in the sequence shown below when an emergency stop status is
canceled.
(2) Contactor shutoff sequence
When an emergency stop occurs, the NC checks the MC shutoff permission (motor stop or dynamic
brake operation) status for all axes and then shuts off the contactors. If there is no MC shutoff
permission output, the contactors are forced off 30 se conds later by their control units. Contactors
are shut off immediately if an alarm occurs.
OFF
ON
Emergency stop (EMG)
ON
OFF
Ready ON signal (READY)
ON
OFF
Servo ON signal (SERVO)
0
500 1000 1500
Time
(
ms
)
Command input enable
OFF
ON
Motor brake control output (CN20)
Dynamic brake
OFF
ON
Contactor control output (MC1)
ON
OFF
PN bus voltage
PN charging completed
Motor ON (GATE)
ON
OFF
Ready completion
Contactor ON sequence
Servo 1st axis
(Dynamic brake stop)
Servo 2nd axis
(Deceleration control)
Servo 3rd axis
(Drop prevention control)
0
0
0
MC shutoff
permission
Speed
MC shutoff
permission
Speed
MC shutoff
p
ermission
Speed
Contactor control output (MC1)
ON
OFF
Contactor shutoff sequence
Drop prevention
Shutoff after all-axes
permission check
OFF
ON
Emergency stop (EMG)
Spindle
(Deceleration stop)
0
MC shutoff
permission
Speed