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MR-J4W2-77B | MITSUBISHI Multi axis servo drive MR-J4W2-77B
MITSUBISHI MR-J4W2-77B Manual And Instructions
MR-J4W2-77B datasheetPDF datasheet

MITSUBISHI MR-J4W2-77B Product information and technical parameters:
Brand: MITSUBISHI
Name: Multi axis servo drive
Model: MR-J4W2-77B
Multi axis integrated servo amplifier.
MITSUBISHI general AC servo amplifier MELSERVO-J4 series.
Axis number: 2 axis.
Rated output A axis (Note 1): 0.75kw.
Rated output B axis (Note 1): 0.75kw.
Interface: SSCNET III /H.
Note the 1:A axis, B axis, C axis indicates the name of a type of multi axis servo amplifier axis. The C axis represents the 3 axis one type servo amplifier.
Support SSCNET III /H. 1 unit can drive 2 servo motor two axis servo amplifier.
More energy saving, space saving, less wiring, low cost.
Inherited the high performance and high reliability.
Will, as always, adhere to and uphold the excellent quality of MELSERVO.
MR-J4 has inherited the excellent design of existing products.
Its essence to its dregs, create advantage and cost effective utilization rate,
Make full use of renewable resources, to create a new product.

Motor series: medium inertia, medium capacity.
Using a serial absolute / incremental encoder.
Rated output power: 2.0kw.
Rated speed: 2000rpm.
With a brake band.
Shaft end: straight shaft.
The rotor of AC servo motor is usually made of squirrel cage, but in order to make the servo motor has a wide range of speed regulation, linear mechanical properties,
Without the "rotation" phenomenon and the performance of the fast response, it is compared with the ordinary motor,
The two characteristics of rotor resistance and moment of inertia should be provided MITSUBISHI MR-J4W2-77B MR-J4W2-77B
At present, there are two kinds of rotor structure, one is the squirrel cage rotor, which is made of conductive material with high resistivity,
In order to reduce the moment of inertia of the rotor, the rotor is slender MITSUBISHI MR-J4W2-77B. Drive: MR-H_ACN series built-in positioning function.
Rated output: 11KW.
In servo drive speed closed loop,
Rotor speed measurement accuracy is very important to improve the dynamic and static characteristics of the speed control loop.
In order to seek the balance between measurement precision and system cost, incremental photoelectric encoder is generally used as the speed measuring sensor,
The corresponding method is M/T velocity measurement MITSUBISHI MR-J4W2-77B.
Although the M/T measurement method has a certain measurement accuracy and a wide range of measurement,
But this method has its inherent defects,
Mainly includes: the measurement period must be detected at least one complete encoder pulse, limiting the minimum detectable speed.
2 control system for speed control of the timer switch is difficult to maintain synchronization,
Can not guarantee the accuracy of measurement in the situation where the speed change is larger.
Therefore, it is difficult to improve the speed tracking and control performance of servo drive by using the traditional speed loop design method. MITSUBISHI motor universal AC servo amplifier MELSERVO-J3 series.
Rated output: 2.0kw.
Interface type: SSCNET type III fiber communication.
Special features: integrated driver security.
Power specification: three phase AC200V.
STO function as a security feature is added to the SSCNET III fiber communication type servo amplifier.
By using the STO function, the electromagnetic contactor used in the past to prevent the motor from accidentally starting is no longer needed.
SS1 functions can be realized by using the MR-J3-D05 security logic unit.
MR-J3-BS uses a full closed loop control system.
Compatibility with MR-J3-B.
MR-J33-BS installation, wiring and connectors are the same as the MR-J3-B, so do not change the existing connection will be easy to MR-J3-B
Change to MR-J3-BS MR-J4W2-77B.
Security functions are connected to the CN8 interface through an external securityy circuit to increase the MR-J3-BS driver security MR-J4W2-77B.
Compatible full closed loop control system.
MR-J3-BS has a full closed loop control system version.


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