
Page
4
6
Descri
tion
Design Date Edit.
FANUC AC SERVO MOTOR
α
is series
with High-Torque Brake
B-65262EN/03-07
FANUC LTD
Newl
added Funakubo 04.11.12
01
Title
Draw.
No.
Submit
4. RECOMMENDED PARTS IN BRAKE CIRCUIT
The recommended parts for a brake circuit in using the high-torque brake are listed below.
Item Model No. Manufacturer Specifications
FANUC
order No.
Switch — —
Rated load capacity (resistance load)
250VAC 20A / 30VDC 20A or more
(Note 1)
—
Surge absorber
ERZV20D820
(Note 2)
Matsushita Electric
Industrial Co., Ltd.
Varistor 82V
Max. allowable Voltage 50VAC
—
Spark killer XEB0471
Okaya Electric
Industries Co., Ltd.
47Ω / 0.1µF
Withstanding voltage 400V or more
—
Rectifier
D3SB60
(Note 3)
Shindengen Electric
Manufacturing Co., Ltd.
Withstanding voltage 400V or more
Max. output current 2.3A (without fin)
A06B-6050
-K112
Note
1 The recommended load capacity of switch is increased against a standard 35Nm brake.
2 The recommended size of surge absorber is increased against a standard 35Nm brake.
3 Use with a radiator fin, and use one rectifier per one brake axis.
5. OUTLINE DRAWINGS OF MOTOR
The outline drawings of motors with high-torque brake are shown in the following pages.
Motor models
α40is, α40HVis, α50is, α50HVis, α40i
Fig.1
α50is with fan, α50HVis with fan, α40i with fan
Fig.2
Note
1 The length of each motor is 25mm longer than the motor with a standard 35Nm brake.
2 The shape and size of shaft are the same as motors with a standard 35Nm brake.