Hitachi SJ700-2 Control gain switching function CAS, 55 P/PI switching function PPI

A044/A244: V/F characteristic curve selection, 1st/2nd motors

C001 to C008: Terminal [1] to [8] functions

H005/H205: Motor speed constant, 1st/2nd motors

H050/H250: PI proportional gain, 1st/2nd motors

H051/H251: PI integral gain, 1st/2nd motors

H052/H252: P proportional gain setting, 1st/2nd motors

Related code

A044/A244: V/F characteristic curve selection, 1st/2nd motors

C001 to C008: Terminal [1] to [8] functions

H005/H205: Motor speed constant, 1st/2nd motors

H050/H250: PI proportional gain, 1st/2nd motors

H051/H251: PI integral gain, 1st/2nd motors

H052/H252: P proportional gain setting, 1st/2nd motors

H070: Terminal selection PI proportional gain setting

H071: Terminal selection PI integral gain setting

H072: Terminal selection P proportional gain setting

Chapter 4 Explanation of Functions

4.2.54 Control gain switching function (CAS)

The control gain switching function allows you to set and switch between two types of gains and time constants for the speed control system (with proportional and integral compensations) when the V/F characteristic curve selection is the sensorless vector control, 0Hz-range sensorless vector control, or vector control with sensor.

To use this function, assign function "26" (CAS: control gain setting) to one of the terminal [1] to [8] functions (C001 to C008).

When the CAS terminal is turned off, the gain settings "H050", "H250", "H051", "H251", "H052", and "H252" are selected. When the CAS terminal is turned on, the gain settings "H070", "H071", and "H072" are selected.

If function "26" (CAS: control gain setting) is not assigned to any intelligent input terminal, the same gain settings as those selected when the CAS terminal is off are selected.

Item	Function code	Data or range of data		Description
		03	Sensorless vector control
V/F characteristic curve selection	A044/A244	04	0Hz-range sensorless vector
			control
		05	V2 (not available for "A244")
Terminal function	C001 to C008	26	CAS: Control gain setting
Motor speed constant, 1st/2nd	H005/H205	0.001 to 9.999, 10.00
motors		to 80.00
PI proportional gain	H050/H250	0.0 to 999.9, 1000 (%)
PI integral gain	H051/H251	0.0 to 999.9, 1000 (%)
P proportional gain	H052/H252	0.01 to 10.00
Terminal selection PI proportional	H070	0.0 to 999.9, 1000 (%)
gain setting
Terminal selection PI integral gain	H071	0.0 to 999.9, 1000 (%)
setting
Terminal selection P proportional	H072	0.00 to 10.00
gain setting
Gain switching time	H073	0. to 9999. (ms)	Taper time at gain switching
4.2.55 P/PI switching function (PPI)
				Related code

The P/PI switching function allows you to switch the control (compensation) mode of the speed control system between the proportional integrated compensation and proportional compensation modes when the V/F characteristic curve selection is the sensorless vector control, 0Hz-range sensorless vector control, or vector control with sensor.

To use this function, assign function "43" (PPI: P/PI mode selection) to one of the terminal [1] to [8] functions (C001 to C008).

When the PPI terminal is turned off, the proportional integrated compensation mode is selected. When the PPI terminal is turned on, the proportional compensation mode is selected.

If function "43" (PPI: P/PI mode selection) is not assigned to any intelligent input terminal, the proportional integrated compensation mode is selected.

Item	Function code	Data or range of data	Description
		03	Sensorless vector control (not available
V/F characteristic curve	A044/A244/		for "A344")
		04	0Hz-range sensorless vector control (not
selection, 1st/2nd/3rd motors	A344
		05	available for "A344")
			V2 (not available for "A244" and "A344")
Terminal function	C001 to C008	43	PPI: P/PI mode selection
Motor speed constant, 1st/2nd	H005/H205	0.001 to 80.000
motors
PI proportional gain	H050/H250	0.0 to 999.9, 1000 (%)
PI integral gain	H051/H251	0.0 to 999.9, 1000 (%)
P proportional gain	H052/H252	0.001 to 10.00
Terminal selection PI	H070	0.0 to 999.9, 1000 (%)
proportional gain setting

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