Mitsubishi Electric MELSERVO MRJ2S-B, Instruction Manual

Page: 104 / 200

Operation Parameter
4 - 18
Number Symbol Initial value Unit Setting range
19 FFC 0 % 0–100
Feed forward gain
Pre-regulation to minimise the control deviation for position control.
When the setting is 100%, the droop pulses during operation at constant speed are nearly zero. However, sudden
acceleration/deceleration will increase the overshoot.
20 INP 100 Pulse 0–50000
In-position range
Used to set the droop pulse range in which the in-position will be output to the controller.
The control deviation is not affected by the electronic gear. Make setting in the feedback pulse unit
(parameter No. 6).
Example:
when you want to set 10
µ
m in the conditions that the ballscrew is direct coupled, the lead is 10mm, and the
feedback pulses are 8192 pulses/rev (parameter No. 6: 1), set "8" in parameter 20 as indicated by the following
expression.
21 MBR 100 ms 0–1000
Electromagnetic brake sequence output
Used to set a time delay from when the electromagnetic brake interlock signal (MBR) turns off until the base circuit
is shut off.
22 MOD 0100 Refer description
Analog monitor output
MO1
The settings corresponds to MO2
MO2
Setting Servo amplifier 200V Servo amplifier 400V
0 Servo motor speed (±8V/max. speed)
1 Torque (±8V/maxi. torque)
2 Servo motor speed (+8V/max. speed)
3 Torque (+8V/maxi. torque)
4 Current set point (±8V/max. rated current)
5 Speed set point (±8V/max. speed)
6 Contouring error (±10V/128 Pulse)
7 Contouring error (±10V/2048 Pulse)
8 Contouring error (±10V/8192 Pulse)
9 Contouring error (±10V/32768 Pulse)
A Contouring error (±10V/131072 Pulse)
B Bus voltage (+8V/400V) Bus voltage (+8V/800V)
23 OP1 0000 Refer description
Function selection 1: Used to make the servo forced stop function invalid
Tab. 4-13: Parameter list details (5)
10 10
6 –
×
10 10
3 –
×
------------------------ 81920
×
8.192 8
= =
0 0
0 0 0
Servo forced stop selection
0: Valid (Use the forced stop EM1.)
1: Invalid (Do not use the forced stop EM1. Automatically switched on internally.)