Hitachi SJ-FB Instruction Manual page 27

[Setting example]
Main Motor : Encoder pulse 1024 pulses
Sub Motor : Encoder pulse 3000 pulses
(Main motor rotation speed) : (sub motor rotation speed) = 2 : 1
Set the following for slave inverter in this case.
Electronic gear setting position (P019)
Electronic gear numerator (P020)
Electronic gear ratio denominator (P021) : 1024*2=2048
REF
Figure 7-4 Control block diagram of the electron gear function (1)
REF
Figure 7-5 Control block diagram of the electron gear function (2)
: RET (command pulse side)
: 3000
Feed forward gain
+
-
Position loop gain
N
D
FB
Electron gear establishment position selection = FB
Feed forward gain
+
N
D
-
Position loop gain
FB
Electron gear establishment position selection = REF
27
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Chapter 7
FFWG
+
G ASR
+
FFWG
+
G
+
FUNCTIONS
ASR