Mitsubishi Electronics MR-J2S- A Setting for use of AD75P, 131072 2000/60 Pulse/s

5. PARAMETERS

(3)Setting for use of AD75P

The AD75P also has the following electronic gear parameters. Normally, the servo amplifier side electronic gear must also be set due to the restriction on the command pulse frequency (differential 400kpulse/s, open collector 200kpulse/s).

AP: Number of pulses per motor revolution

AL: Moving distance per motor revolution

AM: Unit scale factor

AP75P							Servo amplifier
	Command			AP				CMX	Deviation
	value	Control		AL	AM	Command		CDV	counter
		unit				pulse
			Electronic gear
							Electronic gear		Feedback pulse
										Servo motor

The resolution of the servo motor is 131072 pulses/rev. For example, the pulse command needed to rotate the servo motor is as follows

Servo motor speed [r/min]	Required pulse command
2000	131072	2000/60	4369066 pulse/s
3000	131072	3000/60	6553600 pulse/s

For the AD75P, the maximum value of the pulse command that may be output is 200kpulse/s in the open collector system or 400kpulse/s in the differential line driver system. Hence, either of the servo motor speeds exceeds the maximum output pulse command of the AD75P.

Use the electronic gear of the servo amplifier to run the servo motor under the maximum output pulse command of the AD75P.

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