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6 OPTIONS AND PERIPHERAL EQUIPMENT
6.6 Noise reduction techniques
Surge killer (recommended)
Use of a surge killer is recommended for AC relay, magnetic contactor or the like near the drive unit. Use the following surge
killer or equivalent.
Ex.
CR-50500 (Okaya Electric Industries)
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
Rated
voltage
AC [V]
C [
μ
F
±20 %]
R [
Ω
±30
%]
Test voltage
Dimensions [Unit: mm]
250
0.5
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
MC
SK
MC
OFF
ON
Relay
Surge killer
Surge killer
20 cm or less
φ
(18.5 + 2) ± 1
6 ± 1
15 ± 1
48 ± 1.5
6 ± 1
16 ± 1
φ
3.6
Mounting band
AWG 18 stranded wire
Soldered
300 or more
300 or more
(18.5 + 5) or less
-
+
RA
Diode