Mitsubishi Electric MELSERVO-J3W Series, Instruction Manual

Page: 21 / 500

1. FUNCTIONS AND CONFIGURATION
1 - 4
Servo amplifier
MR-J3W-
Item
22B 44B 77B 1010B
Reusable
regenerative energy
(Note 3) [J]
17 22 46
Rotary servo motor’s
inertia moment
equivalent to
permissible charging
amount (Note 4)
[ 10
-4
kg m
2
]
3.45 4.46 9.32
Capacitor
regenerative
Linear servo motor’s
mass equivalent to
permissible charging
amount (Note 5) [kg]
8.5 11.0 23.0
Control system Sine-wave PWM control, current control system
Built-in regenerative resistor [W] 10 100
Dynamic brake Built-in
Protective functions
Overcurrent shut-off, regenerative overvoltage shut-off, overload shut-off (electronic thermal
relay), servo motor overheat protection, encoder error protection, regenerative error protection,
undervoltage, instantaneous power failure protection, overspeed protection, excessive error
protection, magnetic pole detection protection, Linear servo control error detection protection
Structure
Self-cooled, open
(IP rating: IP00)
Force-cooling, open (IP rating: IP00)
Side-by-side installation (Note 2)
[ ] 0 to 55 (non-freezing)
Operation
[ ] 32 to 131 (non-freezing)
[ ] 20 to 65 (non-freezing)
Ambient
temperature
Storage
[ ] 4 to 149 (non-freezing)
Operation Ambient
humidity
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
E
nv
ironm
ent
al
c
ondi
tions
Vibration resistance 5.9 m/s
2
at 10 to 55Hz (X, Y and Z directions)
[kg] 1.4 2.3
Mass
[lb] 3.09 5.07
Note 1. 0.25A 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.
2. When closely mounting MR-J3W-44B, operate them at 90 or smaller effective load ratio.
3. The regenerative energy is generated under the following conditions.
Rotary servo motor: The energy is generated when a machine with the inertia moment equivalent to permissible charging amount
decelerates from the rated speed to stop.
Linear servo motor: The energy is generated when a machine with the mass equivalent to permissible charging amount decelerates
from the maximum speed to stop.
Direct drive motor: The energy is generated when a machine with the inertia moment equivalent to permissible charging amount
decelerates from the rated speed to stop.
4. This value is inertia moment when decelerating rotary servo motor from the rated speed to a stop. When decelerating two axes
simultaneously, the inertia moment is a total of two axes. When not decelerating two axes simultaneously, the inertia moment is for
one axis. This note also applies to the direct drive motor.
5. This value is mass when decelerating linear servo motor from the rated speed to a stop. The mass includes a mass of primary side
(coil). When decelerating two axes simultaneously, the mass is a total of two axes. When not decelerating two axes simultaneously,
the mass is for one axis.