Mitsubishi Electric MELSERVO-J4 Instruction Manual page 21

1. FUNCTIONS AND CONFIGURATION
Function
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
Digital override
Teaching function
The direct drive servo system can be configured to drive a direct drive
motor.
Fully closed loop system can be configured using the load-side encoder.
Gain adjustment is performed just by one click on a certain button on MR
Configurator2 or operation section.
This function which complies with the SEMI-F47 standard enables to avoid
triggering [AL. 10 Undervoltage] using the electrical energy charged in the
capacitor in case that an instantaneous power failure occurs during
operation.
This function makes the equipment continue operating even under the
condition that an alarm occurs.
The tough drive function includes two types: the vibration tough drive and
the instantaneous power failure tough drive.
This function continuously monitors the servo status and records the status
transition before and after an alarm for a fixed period of time. You can check
the recorded data on the drive recorder window on MR Configurator2 by
clicking the "Graph" button.
However, the drive recorder will not operate on the following conditions.
1. You are using the graph function of MR Configurator2.
2. You are using the machine analyzer function.
3. [Pr. PF21] is set to "-1".
This amplifier complies with the STO function as functional safety of IEC/EN
61800-5-2. You can create a safety system for the equipment easily.
You can check the cumulative energization time and the number of on/off
times of the inrush relay. This function gives an indication of the replacement
time for parts of the servo amplifier including a capacitor and a relay before
they malfunction.
MR Configurator2 is necessary for this function.
This function calculates the power running energy and the regenerative
power from the data in the servo amplifier such as speed and current. Power
consumption and others are displayed on MR Configurator2.
From the data in the servo amplifier, this function estimates the friction and
vibrational component of the drive system in the equipment and recognizes
an error in the machine parts, including a ball screw and bearing.
MR Configurator2 is necessary for this function.
Limits travel intervals using LSP (Forward rotation stroke end) and LSN
(Reverse rotation stroke end).
Enables smooth acceleration and deceleration.
Set S-pattern acceleration/deceleration time constants with [Pr. PC03].
Compared with linear acceleration/deceleration, the
acceleration/deceleration time will be longer for the S-pattern
acceleration/deceleration time constants regardless of command speed.
Limits travel intervals by address using parameters.
Enables the same function with the limit switch by setting parameters.
Limits a servo motor speed with analog inputs.
A value can be changed from 0% to 200% for a set speed.
A commanded speed multiplied by an override value selected with OVR
(Override selection) will be an actual servo motor speed.
A value can be changed from 0% to 360% for a set speed.
After an operation travels to a target position with a JOG operation or
manual pulse generator operation, pushing the SET button of the operation
part or turning on TCH (Teach) will import position data.
Description
1 - 6
Control mode
Detailed
explanation
CP CL PS
MR-J4-_A_
chapter 16
MR-J4-_A_
chapter 17
MR-J4-_A_
section 6.1
MR-J4-_A_
section 7.4
[Pr. PA20]
[Pr. PE25]
MR-J4-_A_
section 7.3
[Pr. PA23]
MR-J4-_A_
chapter 13
[Pr. PC03]
section 5.2.2
section 7.4
section 2.4
[Pr. PT42]
[Pr. PT43]
section
6.4.4 (2)
Section 3.10