Mitsubishi Electronics MR-J2S- A instruction manual Speed control mode Power on, Start

4. OPERATION

4.2.3 Speed control mode

(1)Power on

(a)Switch off the servo-on (SON) signal.

(b)When main circuit power/control circuit power is switched on, the display shows "r (servo motor speed)", and in two second later, shows data.

(2)Test operation

Using jog operation in the test operation mode, make sure that the servo motor operates. (Refer to Section 6.8.2.)

(3)Parameter setting

Set the parameters according to the structure and specifications of the machine. Refer to Chapter 5 for the parameter definitions and to Sections 6.5 for the setting method.

Parameter No.	Name	Setting		Description
	Control mode, regenerative brake	0	2
0				Speed control mode
	option selection
				Regenerative brake option is not used.
			12
1	Function selection 1			Input filter 3.555ms (initial value)
				Electromagnetic brake interlock signal is used.
		1	5
2	Auto tuning			Middle response (initial value) is selected.
				Auto tuning mode 1 is selected.
8	Internal speed command 1	1000		Set 1000r/min.
9	Internal speed command 2	1500		Set 1500r/min.
10	Internal speed command 3	2000		Set 2000r/min.
11	Acceleration time constant	1000		Set 1000ms.
12	Deceleration time constant	500		Set 500ms.
13	S-pattern acceleration/deceleration	0		Not used
	time constant

After setting the above parameters, switch power off once. Then switch power on again to make the set parameter values valid.

(4)Servo-on

Switch the servo-on in the following procedure:

(a)Switch on main circuit/control power.

(b)Switch on the servo-on signal (SON) (short SON-SG).

When placed in the servo-on status, the servo amplifier is ready to operate and the servo motor is locked.

(5)Start

Using speed selection 1 (SP1) and speed selection 2 (SP2), choose the servo motor speed. Turn on forward rotation start (ST1) to run the motor in the forward rotation (CCW) direction or reverse rotation start (ST2) to run it in the reverse rotation (CW) direction. At first, set a low speed and check the rotation direction, etc. If it does not run in the intended direction, check the input signal.

On the status display, check the speed, load factor, etc. of the servo motor.

When machine operation check is over, check automatic operation with the host controller or the like. This servo amplifier has a real-time auto tuning function under model adaptive control. Performing operation automatically adjusts gains. The optimum tuning results are provided by setting the response level appropriate for the machine in parameter No. 2. (Refer to chapter 7)

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