2-37
Maker Model Max. limit
voltage
Surge
immunity
Type Remarks
Okaya
R⋅A⋅V-781BYZ-2 783 V 1,000 A
Block
For power supply line
Electric Ind.
R⋅A⋅V-781BXZ-4 783 V 1,000 A For power supply line
ground
Note 1. Refer to manufacturers documentation for operating details.
Note 2. The
surge immunity is for a standard impulse current of 8/20
µ
s. If pulses are wide, either decrease the
current or change to a larger-capacity surge absorber.
D Noise Filters
Use
the following noise filters on the power supplies
for the Servo Driver and brake. These filters are
manufactured by Okaya Electric Ind.
Application Model Rated
current
Test voltage Insulation
resistance
Leakage
current
Attenuation
characteristic
(max.)
Normal
(MHz)
Common
(MHz)
200 V, 100 W
Brake power supply
SUP-P5H-
EPR-4
5 A
Between
terminals:
1,250 Vrms,
Between
terminals and
case:
0.6 mA
(at 250 Vrms
60 Hz)
0.5 to 30 0.2 to 30
200 V, 200 or 400 W
100 V, 100 W
SUP-P8H-
EPR-4
8 A
50/60 Hz, 60 s
Between
terminals and
6,000 M
Ω
min.
(at 500 VDC)
0.6 to 30 0.3 to 30
200 V, 750 W
100 V, 200 or 300W
SUP-P10H-
EPR-4
10 A
case:
2,000 V rms,
50/60 Hz, 60 s
0.7 to 30 0.4 to 30
The appearance of the noise filters is shown below. Screw terminals are used.
Five, M4
Two, 4.8 dia.
System Design and Installation
Chapter
2
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