Hitachi NB616X instruction manual Control block diagram of the electron gear function

Chapter 7 FUNCTIONS

[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)				: RET (command pulse side)
Electronic gear numerator (P020) : 3000
Electronic gear ratio denominator (P021): 1024*2=2048
						FFWG
					Feed forward gain
		+						+
REF						G			ASR
	-						+
					Position loop gain
			N
			D

FB

Electron gear establishment position selection = FB

Figure 7-4 Control block diagram of the electron gear function (1)

REF

N

D

FFWG

Feed forward gain

+		+
G	+	ASR
-
Position loop gain

FB

Electron gear establishment position selection = REF

Figure 7-5 Control block diagram of the electron gear function (2)

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