Hitachi SJ Series, User Manual

Page: 268 / 786

Chapter 12
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PID target
value
Chapter 12
PID1 changeable range limitation
• PID output is restricted to a changeable range
based on the target value.
• When [AH-
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Parameter
PID1 reverse output
• In normal PID control, the inverter does not output
a negative figure for frequency command and limits
at 0 Hz, when result of PID calculation was
negative. If you select 02 (with reverse output) for
PID1 selection [AH
be output in a reverse direction, when result of PID
calculation was negative.
PID1 I control integral reset function [PIDC]
• This is a function to clear the integral figure of PID
operation.
• In the case of turning ON the [PIDC] terminal, do so
when PID is not in operation.
PID1 disable function [PID]
• Turning ON the terminal temporarily disables PID
operation and performs output according to
frequency command.
• The input value
for frequency command.
PID changeable range
A
A
A
A
PID output (%)
PID target
value
Chapter 12
PID1 changeable range limitation
PID output is restricted to a changeable range
based on the target value.
-71] is 0.00, the function will be disabled.
PID1 reverse output
In normal PID control, the inverter does not output
a negative figure for frequency command and limits
at 0 Hz, when result of PID calculation was
negative. If you select 02 (with reverse output) for
PID1 selection [AH-01], frequency command can
be output in a reverse direction, when result of PID
ion was negative.
PID1 I control integral reset function [PIDC]
This is a function to clear the integral figure of PID
In the case of turning ON the [PIDC] terminal, do so
when PID is not in operation.
PID1 disable function [PID]
Turning ON the terminal temporarily disables PID
operation and performs output according to
frequency command.
value as PID command will be adopted
for frequency command.
Item
PID changeable range
PID output (%)
PID1 changeable range limitation
PID output is restricted to a changeable range
based on the target value.
71] is 0.00, the function will be disabled.
In normal PID control, the inverter does not output
a negative figure for frequency command and limits
at 0 Hz, when result of PID calculation was
negative. If you select 02 (with reverse output) for
01], frequency command can
be output in a reverse direction, when result of PID
ion was negative.
PID1 I control integral reset function [PIDC]
This is a function to clear the integral figure of PID
In the case of turning ON the [PIDC] terminal, do so
when PID is not in operation.
PID1 disable function [PID]
Turning ON the terminal temporarily disables PID
operation and performs output according to
as PID command will be adopted
for frequency command.
PID changeable range
12
PID output is restricted to a changeable range
71] is 0.00, the function will be disabled.
In normal PID control, the inverter does not output
a negative figure for frequency command and limits
at 0 Hz, when result of PID calculation was
negative. If you select 02 (with reverse output) for
01], frequency command can
be output in a reverse direction, when result of PID
PID1 I control integral reset function [PIDC]
This is a function to clear the integral figure of PID
In the case of turning ON the [PIDC] terminal, do so
Turning ON the terminal temporarily disables PID
operation and performs output according to
as PID command will be adopted
Terminal
name
[AH-71]
PID output range
12-10-13
71] is 0.00, the function will be disabled.
In normal PID control, the inverter does not output
a negative figure for frequency command and limits
negative. If you select 02 (with reverse output) for
01], frequency command can
be output in a reverse direction, when result of PID
This is a function to clear the integral figure of PID
In the case of turning ON the [PIDC] terminal, do so
Turning ON the terminal temporarily disables PID
as PID command will be adopted
• In the case of using
changeable range [AH
in a range of PID target value ± [AH
maximum speed as 100%.
• When [AH
PID changeable range limit function
extended to the negative direction.
• Turning ON the [PIDC] terminal during PID
operation clears the integral value added to the PID
output command and changes the PID output
command value abruptly, resulting in an
over
Data
0.00~100.00(%)
!
!
!
PID changeable range
[AH-71]
PID changeable range
[AH-71]
PID output range
13
In the case of using
changeable range [AH
in a range of PID target value ± [AH
maximum speed as 100%.
When [AH-01] is set to 02 (with reverse output), the
PID changeable range limit function
extended to the negative direction.
Turning ON the [PIDC] terminal during PID
operation clears the integral value added to the PID
output command and changes the PID output
command value abruptly, resulting in an
over-current error.
Data
100.00(%)
!
!
!
Time (s)
PID changeable range
71]
PID changeable range
71]
In the case of using this function, set PID
changeable range [AH-71]. Restriction will be made
in a range of PID target value ± [AH
maximum speed as 100%.
01] is set to 02 (with reverse output), the
PID changeable range limit function
extended to the negative direction.
Turning ON the [PIDC] terminal during PID
operation clears the integral value added to the PID
output command and changes the PID output
command value abruptly, resulting in an
error.
Description
Changeable range based on the
PID changeable range
PID changeable range
Inverter Functions
this function, set PID
71]. Restriction will be made
in a range of PID target value ± [AH-71] with the
maximum speed as 100%.
01] is set to 02 (with reverse output), the
PID changeable range limit function [AH
extended to the negative direction.
Turning ON the [PIDC] terminal during PID
operation clears the integral value added to the PID
output command and changes the PID output
command value abruptly, resulting in an
Description
Changeable range based on the
target value
Inverter Functions
this function, set PID
71]. Restriction will be made
71] with the
01] is set to 02 (with reverse output), the
[AH-71] will be
Turning ON the [PIDC] terminal during PID
operation clears the integral value added to the PID
output command and changes the PID output
command value abruptly, resulting in an
Changeable range based on the
Inverter Functions
71]. Restriction will be made
01] is set to 02 (with reverse output), the
71] will be
operation clears the integral value added to the PID