Mitsubishi Electric MR-J4W2, Instruction Manual

Page: 260 / 542

11. OPTIONS AND AUXILIARY EQUIPMENT
11 - 31
11.6 Molded-case circuit breakers, fuses, magnetic contactors
Always use one molded-case circuit breaker and one magnetic contactor with one servo amplifier. When
using a fuse instead of the molded-case circuit breaker, use the one having the specifications given in this
section.
When using a combination of the rotary servo motor, linear servo motor, or direct drive motor, select a
molded-case circuit breaker, a fuse or a magnetic contactor tentatively, assuming one type of the servo
motors are used for two or three axes. After the tentative selections are made for all types of the servo
motors, use the largest among all molded-case circuit breakers, fuses, or magnetic contactors.
(1) For main circuit power supply
CAUTION
To prevent the servo amplifier from smoke and a fire, select a molded-case circuit
breaker which shuts off with high speed.
Always use one molded-case circuit breaker and one magnetic contactor with one
servo amplifier.
(a) For MR-J4W2
Total output of
rotary servo
motors
Total
continuous
thrust of linear
servo motors
Total output of
direct drive
motors
Molded-case circuit breaker
(Note 5, 6)
Fuse
(Note 2)
Magnetic
contactor
Frame, rated current
Voltage
AC
[V]
(Note 1)
Class
Current
[A]
Voltage
AC
[V]
300 W or less
50 A frame 5 A
(Note 3)
240 T
15
300
S-N10
S-T10
From over 300
W to 600 W
150 N or less 100 W or less
50 A frame 10 A
(Note 3)
20
From over 600
W to 1 kW From over 150
N to 300 N From over 100
W to 252 W 50 A frame 15 A
(Note 3)
20
From over 1
kW to 2 kW From over 300
N to 720 N From over 252
W to 838 W 50 A frame 20 A
(Note 3)
30
S-N20
S-T21
(Note 4)
Note 1. When using the servo amplifier as an EC/EN/UL/CSA standard compliant product, refer to appendix 4.
2. Use a magnetic contactor with an operation delay time (interval between current being applied to the coil until
closure of contacts) of 80 ms or less.
3. When not using the servo amplifier as an EC/EN/UL/CSA standard compliant product, molded-case circuit breaker
of 30 A frame can be used.
4. S-N18 can be used when auxiliary contact is not required.
5. A molded-case circuit breaker will not change to select regardless of use of a power factor improving AC reactor.
6. Use a molded-case circuit breaker which has the same or more operation characteristics than our lineup.