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3.7 Noise Control and Measures for Harmonic Suppression
3-47
3
Wi
ri
ng and
C
onne
ctio
n
(1) Noise Filter
The SERVOPACK has a built-in microprocessor (CPU), so protect it from external noise as much as possible
by installing a noise filter in the appropriate place.
The following is an example of wiring for noise control.
For ground wires connected to the ground plate, use a thick wire with a thickness of at least 2.0 mm
2
(preferably,
plain stitch cooper wire).
should be twisted-pair wires.
When using a noise filter, follow the precautions in
3.7.2 Precautions on Connecting Noise Filter
.
(2) Correct Grounding
Take the following grounding measures to prevent the malfunction due to noise.
Grounding the Motor
Always connect ground terminal FG to the SERVOPACK ground terminal
. Also be sure to ground the
ground terminal
.
Ground both coil assembly and magnetic way of the servomotor.
If the servomotor is grounded via the machine, a switching noise current will flow from the SERVOPACK
main circuit through servomotor stray capacitance. The above grounding is required to prevent the adverse
effects of switching noise.
Noise on the I/O Signal Cable
If the I/O signal cable receives noise, ground the 0 V line (SG) of the I/O signal cable. If the servomotor main
circuit cable is accommodated in a metal conduit, ground the conduit and its junction box. For all grounding,
ground at one point only.
U
W
V
L2
L1
L3
L2C
L1C
CN2
CN1
ENC
(FG)
M
SERVOPACK
Servomotor
Operation relay
sequence
Signal generation
circuit (not included)
DC
power
(Ground plate)
2.0 mm
min.
2
200 VAC
Noise filter
∗
3
∗
3
∗
2
2.0 mm
2
min .
Ground: Ground to an independent ground
Noise
filter
2.0 mm
2
min .
∗
1
Содержание SGDV SERVOPACK
Страница 23: ...www dadehpardazan ir 88594014 15 xxii ...
Страница 53: ...www dadehpardazan ir 88594014 15 2 Panel Operator 2 10 ...
Страница 103: ...www dadehpardazan ir 88594014 15 3 Wiring and Connection 3 7 3 Connecting a Reactor for Harmonic Suppression 3 50 ...
Страница 117: ...www dadehpardazan ir 88594014 15 4 Trial Operation 4 5 4 Operator Displays during Testing without Motor 4 14 ...
Страница 203: ...www dadehpardazan ir 88594014 15 5 Operation 5 11 5 Precautions for Safety Functions 5 86 ...
Страница 275: ...www dadehpardazan ir 88594014 15 6 Adjustments 6 9 7 Position Integral 6 72 ...