2. Specifications
2
−
17
2.4.3 Regenerative resistor
(1) "FCUA-RB Series" Regenerative Resistor
The regenerative resistor is not built into the spindle unit.
The following regenerative resistor must be installed.
5.3
A± 2
C
B± 1
500 +20
- 0
D
F
2-FN2-M4
φ 4.3mm
6.6
2-Silicon rubber glass braided wires
2.0m m
2
(white)
Model display
(Note 1)
The FCUA-RB04/075 has ribs (grooves) 1.5mm deep and 1.5mm
wide on the top and bottom.
(Note 2)
The FCUA-RB55/75/2 is installed with two installation points of
each side (total four points).
The installation pitch is 80.5mm.
Precautions for installation
(1) When using an operation pattern in which the regenerative resistor is used at a high
frequency, the surface of the resistor may exceed 300°C, so take care to the installation and
the heat radiation. Do not install the resistor where it can be easily touched by hand or body
parts as touching could lead to burns. Install a well-ventilated protective cover (punched metal,
etc.) if body parts might come in contact.
(2) Installation of the regenerative resistor on a metallic surface outside the panel is
recommended to improve the heat radiating effect.
(3) Install the regenerative resistor so that the section where the lead wires are led out is not at
the top of the resistor.
Outline dimensions (mm)
Regenerative
resistor
model
Toler-
ance
(W)
A B
C
D
E
F
Installation Remarks
FCUA-RB04 60
140
125
100
40
20
2.5
2
points
FCUA-RB075 80 215
200
175
40
20
2.5
2
points
Note 1
FCUA-RB15 120
240
225
200
50
25
2.0
2
points
FCUA-RB22 155
215
200
175
60
30
2.5
2
points
FCUA-RB37 185
335
320
295
60
30
2.5
2
points
FCUA-RB55 380
400
385
360
80
40
2.5
4
points
FCUA-RB75/2 380 400 385
360
80
40
2.5
4
points
Note 2