23
How to ground
The cable used to ground the driver, motor and mains filter must be as thick and short to the
grounding point as possible so that no potential difference is generated. Choose a large, thick
and uniformly conductive surface for the grounding point.
How to ground the driver
Single-phase 100/200 V input
Three-phase 200 V input
How to ground the motor
Scrape the paint away from the mounting flange and connect the grounding cable along with a
set screw to the grounding point, using an inner-clip washer.
Wiring the signal cable
Use a shielded cable of AWG24 (0.2 mm
2
) or more in diameter for the driver signal cable, and
keep it as short as possible. Contact the nearest sales office for a shielded cable (sold sepa-
rately).
To ground a shielded cable, use a metal clamp or similar device that will maintain contact with
the entire circumference of the shielded cable. Attach a cable clamp as close to the end of the
cable as possible, and connect it to an appropriate grounding point as shown in the figure.
Others
• Connect the motor, driver and other peripheral control equipment directly to the grounding
point so as to prevent a potential difference from developing between grounds.
• When relays or electromagnetic switches are used together with the system, use mains filters
and CR circuits to suppress surges generated by them.
• Keep cables as short as possible without coiling and bundling extra lengths.
• Place the power cables such as the motor and power-supply cables as far apart [100 to
200 mm (3.94 to 7.87 in.)] as possible from the signal cables. If they have to cross, cross
them at a right angle.
Place the AC input cable and output cable of a mains filter separately from each other.
• If an extension cable is required between the motor and driver, it is recommended that an
optional extension cable (sold separately) be used, since the EMC measures are conducted
using the Oriental Motor extension cable.
ON
1
2
3
4
OPERATION
ALARM
CN1
CN2
CN3
CN
4
I/O
MOTOR
L1
L2
L3
1000
500
2P
X10
X1
1P
0
1
2
3
45
67
8
9
A
B
CDEF
0
1
2
3
45
67
8
9
A
B
CDEF
CURRENT
V.FIL
ASD12A-S
VEXTA
Use the protective earth
terminal located on the side
of the driver.
ON
1
2
3
4
OPERATION
ALARM
CN1
CN2
CN3
CN
4
I/O
MOTOR
100-
115V
L
N
~
1000
500
2P
X10
X1
1P
0
1
2
3
45
67
8
9
A
B
CDEF
0
1
2
3
45
67
8
9
A
B
CDEF
CURRENT
V.FIL
ASD24A-A
VEXTA
Ground the power-supply
terminal using its ground
terminal.
Cable clamp
Shielded cable
