4.1 Wiring and Connecting SERVOPACKs
4.1.2 Countermeasures against Noise
4-6
Noise Filters
You must attach Noise Filters in appropriate places to protect the SERVOPACK from the
adverse effects of noise. The following is an example of wiring for countermeasures against
noise.
*1.
For the ground wire, use a wire with a thickness of at least 2.0 mm
2
(preferably, flat braided copper wire).
*2.
Whenever possible, use twisted-pair wires to wire all connections marked with
.
*3.
Refer to the following section for precautions when using Noise Filters.
Noise Filter Wiring and Connection Precautions
SERVOPACK
Servomotor
Operation relay sequence
User signal generators
DC
power
supply
(Grounding plate)
External ground: Use a dedicated ground.
2.0 mm
2
min.
Noise Filter
2.0 mm
2
min.
2.0 mm
2
min.
Noise Filter
*3
*3 *2
U
W
V
L2
L1
L3
0 V
24 V
CN2
CN1
400 VAC
*1
ENC
(FG)
M
Noise Filter
*3
DC
power
supply
