Noise Reduction Products - Mitsubishi Electric MELSERVO MR-J5 Series User Manual

Noise reduction products

Data line filter (recommended)
Noise can be prevented by installing a data line filter onto cables such as the encoder cable.
For example, ZCAT3035-1330 by TDK, ESD-SR-250 by TOKIN, GRFC-13 by Kitagawa Industries, and E04SRM563218 by
SEIWA ELECTRIC are available as data line filters.
As a reference example, the impedance specifications of the ZCAT3035-1330 (TDK) are indicated below. These impedances
are reference values and not guaranteed values.
Impedance [Ω]
10 MHz to 100 MHz
80
[Unit: mm]
Loop for
39 ± 1
fixing cable band
34 ± 1
Product
Lot number
name
Dimensions (ZCAT3035-1330)
Surge killer (recommended)
Use of a surge killer is recommended for AC relay, magnetic contactor, or the like near the servo amplifier. Use the following
surge killer or equivalent.
OFF
ON
MC
Surge killer
Ex.
CR-50500 (Okaya Electric Industries)
Rated C [μF
voltage ±20 %]
AC [V]
250 0.5
Note that a diode should be installed to a DC relay or the like.
Maximum voltage: Not less than four times the drive voltage of the relay or the like
Maximum current: Not less than two times the drive current of the relay or the like
+
RA
Diode
6 OPTIONS AND PERIPHERAL EQUIPMENT
358
6.15 Noise reduction techniques
MC
SK
Relay
20 cm or less
R [Ω ±30 Test voltage
%]
50 (1/2W) Between
terminals: 625
V AC, 50 Hz/60
Hz 60 s
Between
terminal and
case: 2000 V
AC
50/60 Hz 60 s
-
100 MHz to 500 MHz
150
Surge killer
Dimensions [Unit: mm]
Mounting band
15 ± 1
Soldered
6 ± 1
300 or more 48 ± 1.5
AWG 18 stranded wire
6 ± 1
16 ± 1
300 or more
φ3.6
(18.5 + 5) or less