Data Setting - Hitachi SJ-FB Instruction Manual

Main Motor
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
Feed-forward gain
(Note 1)
Position loop gain (Note 2)
Electronic gear position
selection (Note 3)
Numerator of the electronic gear
ratio (Note 3)
Denominator of the electronic
gear ratio (Note 3)
Completion range setting
Completion delay time
(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.
Master Inverter
AP,BP
AN,BN
EG5
EAP,EBP
EAN,EBN
M
EC
Function code
P022
P023
P019
P020
P021
P017
P018
25
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Chapter 7
Slave Inverter
SAP,SBP
SAN,SBN
EG5
EAP,EBP
EAN,EBN
Sub Motor
M
EC
Setting range, setting contents
0.00∼99.99 / 100.0∼655.3
0.00∼9.99 / 100.0 (rad/s)
00: to the feed back side (FB)
01: to the position command side (REF)
1∼9999
1∼9999
0∼9999. / 1000 (10,000) (pulse)
0.00∼9.99 (s)
FUNCTIONS