6 OPTIONS AND PERIPHERAL EQUIPMENT
6.3 MR-CM simple converter
181
6
Peripheral equipment
Molded-case circuit breakers, fuses, magnetic contactors
■When connecting one simple converter and one servo amplifier
■When connecting one simple converter and multiple servo amplifiers
Circuit breakers, semiconductor fuses, or motor circuit breakers (Type E combination motor controllers) that match the sum of
the rated capacities [kW] of the multiple connected amplifiers can be used. The selection condition is as follows. When using
a multi-axis servo amplifier, calculate the sum of the rated capacities of all axes as the rated capacity of the servo amplifier.
The sum of rated capacities of connected servo amplifiers [kW] 3 kW (MR-CM3K rated output)
Motor circuit breaker (Type E combination motor controller)
Power factor improving AC reactor
EMC filter
For selection of EMC filters, refer to the following and the EMC Installation Guidelines.
Page 228 EMC filter (recommended)
Model Molded-case circuit breaker Fuse Magnetic
contactor
Frame, rated current Voltage
AC [V]
Class Current
[A]
Voltage
AC [V]
Power factor
improving reactor is
not used
Power factor
improving reactor is
used
MR-CM3K 30 A frame 30A 30 A frame 30A 240 T 40 300 S-T21
Model Capacity Molded-case circuit breaker Semiconductor fuse (700 V) Magnetic
contactor
Frame, rated current Voltage
AC [V]
BUSSMANN: 170M series
Mitsubishi Electric: NF125-SVU
MR-
CM3K
Less than 2
kW
125 A frame 15A 240 170M1409 (16 A) S-T21
2 kW or
more
125 A frame 20A 240 170M1413 (40 A) S-T21
Voltage Sum of rated capacities of
servo amplifiers [kW]
Input
rating
[Vac]
Input
phase
Motor circuit breaker (Type E combination
motor controller)
SCCR
[kA]
Model Rating [Vac] Rated current
[A]
(heater design)
200 V
system
100 W 200 to 240 3-phase MMP-T32 240 1.6 50
200 W or less 2.5
400 W or less 4
600 W or less 6.3
750 W or less 6.3
1 kW or less 8
2 kW or less 18
Over 2 kW 25 25
Simple converter Power factor improving AC reactor
MR-CM3K FR-HAL-7.5K
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