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13. SERVO AMPLIFIERS WITH A LARGE CAPACITY (30k TO 55kW)
13.1.3 Standard specifications
(1) Converter unit
Model
Item
MR-J3-CR55K MR-J3-CR55K4
Voltage/frequency 3-phase 200 to 230VAC, 50/60Hz 3-phase 380 to 480VAC, 50/60Hz
Permissible voltage
fluctuation
3-phase 170 to 253VAC 3-phase 323 to 528VAC
Main circuit power
supply
Permissible frequency
fluctuation
Within
5%
Voltage/frequency 1-phase 200 to 230VAC, 50/60Hz 1-phase 380 to 480VAC, 50/60Hz
Permissible voltage
fluctuation
1-phase 170 to 253VAC 1-phase 323 to 528VAC
Permissible frequency
fluctuation
Within
5%
Control power
supply
Power consumption 45W
Voltage 24VDC 10% Interface power
supply
Power supply capacity (Note) 130mA
Rated output 55kW
Regenerative power
(Using regenerative option)
One MR-RB139: 1300W
Three MR-RB137: 3900W
One MR-RB136-4: 1300W
Three MR-RB138-4: 3900W
Protective function
Regenerative overvoltage shutoff, overload shutoff (electronic thermal protector)
Regenerative alarm protection, undervoltage, instantaneous power failure protection
Structure Force-cooling, open (IP00)
[ ] 0 to 55 (non-freezing)
In operation
[
] 32 to 131 (non-freezing)
[ ] 20 to 65 (non-freezing)
Ambient
temperature
In storage
[
] 4 to 149 (non-freezing)
In operation Ambient
humidity
In storage
90%RH or less (non-condensing)
Ambient
Indoors (no direct sunlight)
Free from corrosive gas, flammable gas, oil mist, dust and dirt
Altitude Max. 1000m above sea level
5.9 [m/s
2
] or less
Environment
Vibration
19.4 [ft/s
2
] or less
[kg] 25
Mass
[lb] 55.1
Note. 130mA is the value applicable when all I/O signals are used. The current capacity can be decreased by reducing the number of
I/O points.