Hitachi NB616X Wiring for Synchronized Operation, Data setting related to position control

Chapter 7 FUNCTIONS

Master Inverter

AP,BP

AN,BN

EG5

EAP,EBP

EAN,EBN

Main Motor

M

EC

Slave Inverter

SAP,SBP

SAN,SBN

EG5

EAP,EBP

EAN,EBN

Sub Motor

M

EC

Figure 7-3 Wiring for Synchronized Operation

(Note) : Please connect EG5 of the main and sub inverter together to avoid malfunction caused by EMC noise.

7.3.3 Data setting

Data setting related to position control

Setting item	Function code	Setting range, setting contents
Feed-forward gain	P022	0.00∼ 99.99 / 100.0∼ 655.3
(Note 1)
Position loop gain (Note 2)	P023	0.00∼ 9.99 / 100.0 (rad/s)
Electronic gear position	P019	00: to the feed back side (FB)
selection￿(Note 3)		01: to the position command side (REF)
Numerator of the electronic gear	P020	1∼	9999
ratio (Note 3)
Denominator of the electronic	P021	1∼	9999
gear ratio (Note 3)
Completion range setting	P017	0∼ 9999. / 1000 (10,000) (pulse)
Completion delay time	P018	0.00∼	9.99 (s)

(Note 1) : We promote the adjustment from P022=2.00 at the time of the feed forward gain adjustment .To make the position deviation of the main and sub motor small, then increase feed forward gain. When the motor is unstable, then decrease feed forward gain

(Note 2) :We promote the adjustment from P023=2.00 at the time of the position loop gain adjustment. To get good accuracy of the position control then increase posotion loop gain, then to get much power to maintain the positioning then increase posotion loop gain. Motor is unstable due to too big position loop gain, then decrease position loop gain.

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