Hitachi SJ-FB Instruction page 29

[Setting example]
Main Motor
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) : RET (command pulse side)
Electronic gear numerator (P020) : 3000
Electronic gear ratio denominator (P021)
Figure 7-4 Control block diagram of the electron gear function (1)
Figure 7-5 Control block diagram of the electron gear function (2)
REF
REF
: Encoder pulse 1024 pulses
+
-
N
D
FB
Electron gear establishment position selection = FB
N
D
Electron gear establishment position selection = REF
Chapter 7
: 1024*2=2048
FFWG
Feed forward gain
G
+
Position loop gain
FFWG
Feed forward gain
+
G
+
-
Position loop gain
FB
29
FUNCTIONS
+
ASR
+
ASR