Mitsubishi Electric MELSERVO-J2S Series Transition Handbook page 117

Part 4: Review on Replacement of MR-J2S-_CP_/CL_ with MR-J4-_A_-RJ
function
External I/O signal display
VC automatic offset
Alarm code output
Test operation mode
Analog monitor output
MR Configurator2
Linear servo system
Direct drive
Servo system
Fully closed loop system
One-touch tuning
SEMI-F47 function
Tough drive function
Drive recorder function
STO function
Servo amplifier life diagnosis
function
Power monitoring function
Machine diagnosis function
Limit switch
S-pattern
acceleration/deceleration
Software limit
Analog override
Teaching function
Note. CP: positioning mode (point table method), CL: positioning mode (program method)
The on/off statuses of external I/O signals are displayed on the display.
If the motor does not stop even when the VC (analog speed command) or VLA (analog
speed limit) is 0 V, the voltage is automatically offset to stop it.
When an alarm occurs, an alarm number is output in 3-bit code.
Jog operation, positioning operation, motor-less operation, DO forced output, and
program operation. When performing positioning operation, program operation, and
single-step feed, MR Configurator2 is required.
The voltage is output in real time for the servo status.
Parameter setting, test operation, monitoring, etc., can be performed using a personal
computer.
Linear servo motor and linear encoder can be used to construct the linear servo system.
Direct drive servo system that drives direct drive motors can be constructed.
Load side encoder can be used to construct the fully closed loop system.
Gain adjustment of the servo amplifier is possible only by operation of the push button or
by one click of the button on MR Configurator2.
By complying with the SEMI-F47 standard, even when an instantaneous power failure
occurs during the operation, the electrical energy charged in the capacitor can be used to
avoid the occurrence of [AL.10 Undervoltage]
It is usually possible to continue operation so that the device does not stop even when
alarm is about to occur.
There are two types of tough drive functions, vibration tough drive and instantaneous
power failure tough drive.
By always monitoring the servo status, this function allows fixed time recording of status
transitions before and after an alarm occurs. The recorded data can be checked by
clicking the wave-form display button on the drive recorder screen of MR Configurator2.
However, in the following statuses, the drive recorder will not operate.
1. When the MR Configurator2 graph function is in use.
2. When the machine analyzer function is in use.
3. When [Pr. PF21] is set to "-1".
The STO functions are available as IEC/EN 61800-5-2 safety functions. A device safety
system can be easily constructed.
The accumulated energization time and the number of times the burst relay is turned on
and off can be checked. This acts as a measure of time if servo amplifier parts such as
capacitor and relay need to be replaced according to their life expectancies before
malfunctioning.
MR Configurator2 is necessary for this function.
The power running power and regenerative power are calculated from data in the servo
amplifier, including speed and current. Power consumption, etc., can be displayed in MR
Configurator2.
Faulty machine parts such as ball screws and bearings can be detected by presuming
friction and vibration elements of the device actuator from data in the servo amplifier.
MR Configurator2 is necessary for this function.
Forward rotation stroke end (LSP) and reverse rotation stroke end (LSN) can be used to
limit the travel distance of servo motor.
Smooth acceleration/deceleration is possible.
Set the S-pattern acceleration/deceleration time constants in [Pr. PC03].
Compared with linear acceleration/deceleration time, the acceleration/deceleration time
will be longer by the magnitude of S-pattern acceleration/deceleration time constant
regardless of commanded speed.
A parameter can be used to limit the travel distance based on addresses.
Use a parameter to set a function equivalent to the limit switch.
Limit the servo motor speed with analog input.
The setting speed can be changed within the range of 0 to 200%.
After moving to the target location by JOG operation or manual pulse generator
operation, the position data can be retrieved by turning on the teach (TCH) or "set" key on
the controller.
Description
4 - 8
Control
mode
(Note)
C C
P L
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ○
○ ×