Panasonic A4P Series Wiring to the Connector, CN X7 Connection to External Scale, Remark

System Configuration and Wiring

Wiring to the Connector, CN X7 (Connection to External Scale)

Power supply for the external scale shall be prepared by customer, or use the following power supply output for the external scale (250mA or less).

Application￿	Connector￿		Content￿
		PinNo.￿
￿				￿
Power supply output￿		1￿		EX5V￿
for external scale￿		2￿		EX0V￿
I/F of external scale signals￿		5￿	EXPS￿
(serial signal)￿		6￿
				EXPS	￿
Frame ground		Case		FG

<Note>

EXOV of the external scale power supply output is connected to the control circuit ground which is connected to the Connecter, CN X5.

<Remark>

Do not connect anything to other Pin numbers descried in the above table (Pin-3 and 4).

Cautions

(1)Following external scale can be used for full-closed control.

•AT500 series by Mitutoyo (Resolution 0.05[∝m], max. speed 2[m/s])

•ST771 by Mitutoyo (Resolution 0.5[∝m], max. speed 2[m/s])

(2)

Recommended external scale ratio is 1/20<External scale ratio<20

If you set up the external scale ratio to smaller value than 50/position loop gain (SV.Pr10 and 18), you may not be able to control per 1 pulse unit. Setup of larger scale ratio may result in larger noise.

Wiring to the External Scale, Connector, CN X7

Wire the signals from the external scale to the external scale connector, CN X7.

1)Cable for the external scale to be the twisted pair with bundle shielding and to having the twisted core wire with diameter of 0.18mm2.

2)Cable length to be max. 20m. Double wiring for 5V power supply is recommended when the wiring length is long to reduce the voltage drop effect.

3)Connect the outer film of the shield wire of the external scale to the shield of the junction cable. Also connect the outer film of the shield wire to the shell (FG) of CN X7 of the driver without fail.

4)Separate the wiring to CN X7 from the

power line (L1, L2, L3, L1C(r), L2C(t),		3	1	CN X7			+5V
	EX5V				EX5V
		1	2				0V
U, V.W, ) as much as possible (30cm	EX0V				EX0V			Regulator
		4
	EX5V		3
or more). Do not pass these wires in		2
	EX0V		4
the same duct, nor bundle together.		11
	EX5V		5	EXPS
		13	6
5) Do not connect anything to the vacant	EX0V
					EXPS
pins of CN X7.						55100-0600￿
6) Cut away the driver's CN X7 cover.
						(by Molex Inc.)

		EXPS		7
X6				8
		EXPS
				15
X7		FG
				Twisted pair
	Detection head	HDAB-15P￿		HDAB-15S￿
		(by Hirose Electric Co.)	(by Hirose Electric Co.)
Please cut it out ￿				Junction cable
with nippers etc.
	External scale unit	External scale side		Servo driver

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