Mitsubishi Electric Melservo JE Series Instruction Manual page 251

11. OPTIONS AND PERIPHERAL EQUIPMENT
(e) Radio noise filter (FR-BIF)
This filter is effective in suppressing noises radiated from the power supply side of the servo
amplifier especially in 10 MHz and lower radio frequency bands. The FR-BIF is designed for the
input only.
200 V class: FR-BIF
Connection diagram
Make the connection cables as short as possible. Grounding is
always required.
When using the FR-BIF with a single-phase power supply, always
insulate the lead wires that are not used for wiring.
MCCB MC
Power
supply
Radio noise
(f) Varistor for input power supply (recommended)
Varistors are effective to prevent exogenous noise and lightning surge from entering the servo
amplifier. When using a varistor, connect it between each phase of the input power supply of the
equipment. For varistors, the TND20V-431K and TND20V-471K, manufactured by Nippon Chemi-
Con, are recommended. For detailed specification and usage of the varistors, refer to the
manufacturer catalog.
Power
supply Varistor
voltage
AC [Vrms] DC [V]
TND20V-431K
200 V
class
TND20V-471K
D
W E
d
Terminal
Servo amplifier
block
L1
L2
L3
filter
Maximum rating
Surge
Permissible circuit
current
voltage
immunity
8/20 µs [A]
10000/1
275 350
time
7000/2
300 385
times
T
Model
TND20V-431K
TND20V-471K
Note. For special purpose items for lead length (L), contact the manufacturer.
Dimensions [Unit: mm]
Red White Blue
29
58
Maximum
limit voltage
Energy Rated pulse
immunity power
[A]
2 ms [J] [W]
195
1.0 100
215
D H
Max. Max. Max.
6.4
21.5 24.5
6.6
11 - 38
Leakage current: 4 mA
Green
29
44
Static
Varistor voltage rating
capacity
(range)
(reference
V1 mA
value)
[V]
[pF]
710 1300 430 (387 to 473)
775 1200 470 (423 to 517)
(Note)
T E φd
L
±1.0 ±0.05
Min.
3.3
20 0.8
3.5
φ5
hole
7
[V]
[Unit: mm]
W
±1.0
10.0