Mitsubishi Electric MELSERVO-J5 User Manual page 246

■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
■Cable clamp fitting AERSBAN-_SET
Generally, connecting the grounding wire of the shielded wire to the SD terminal of the connector provides a sufficient effect.
However, the effect can be increased when the shielded wire is connected directly to the ground plate as shown below.
Install the ground plate near the servo amplifier for the encoder cable. Peel part of the cable insulator to expose the external
conductor, and press that part against the ground plate with the cable clamp. If the cable is thin, clamp several cables in a
bunch.
The cable clamp comes as a set with the grounding plate.
[Unit: mm]
Clamp fittings
(A, B)
Clamp section diagram
6 OPTIONS AND PERIPHERAL EQUIPMENT
244
6.14 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
-
Strip the cable insulator
of the clamped area.
Cable
Grounding plate
External conductor
Surge killer
Dimensions [Unit: mm]
Mounting band
15 ± 1
Soldered
6 ± 1
300 or more 48 ± 1.5
Cutter
Cable
AWG 18 stranded wire
6 ± 1
16 ± 1
300 or more
φ3.6
(18.5 + 5) or less