Hitachi SJ Series User Manual page 282

Chapter 12 Chapter 12 Chapter 12
PID2/PID3/PID4 changeable range limitation PID2/PID3/PID4 changeable range limitation PID2/PID3/PID4 changeable range limitation PID2/PID3/PID4 changeable range limitation
A
• • PID output is restricted to a changeable range PID output is restricted to a changeable range PID output is restricted to a changeable range PID output is restricted to a changeable range
based on the target value. based on the target value. based on the target value.
• The limitation function of PID for which 0.00 was • The limitation function of PID for which 0.00 was The limitation function of PID for which 0.00 was The limitation function of PID for which 0.00 was The limitation function of PID for which 0.00 was
set for the following changeable range will be set for the following changeable range will be set for the following changeable range will be set for the following changeable range will be
disabled.
PID output (%) PID output (%)
PID target
value
PID2/
PID3/
PID4
Parameter Parameter
Item Item
PID2 changeable PID2 changeable
range
PID3 changeable PID3 changeable
range
PID4 changeable PID4 changeable
range
PID2/PID3/PID4 PID2/PID3/PID4 reverse output reverse output
A
• In normal PID control, the inverter does not output • In normal PID control, the inverter does not output In normal PID control, the inverter does not output In normal PID control, the inverter does not output In normal PID control, the inverter does not output
a negative figure for frequency command and limits a negative figure for frequency command and limits a negative figure for frequency command and limits a negative figure for frequency command and limits a negative figure for frequency command and limits
at 0 Hz. If you select 02 (with reverse output) for at 0 Hz. If you select 02 (with reverse output) for at 0 Hz. If you select 02 (with reverse output) for at 0 Hz. If you select 02 (with reverse output) for at 0 Hz. If you select 02 (with reverse output) for
each selection [AJ-01]/[AJ each selection [AJ 01]/[AJ-21]/[AJ-41] of
PID2/PID3/PID4, frequency command can be PID2/PID3/PID4, frequency command can be frequency command can be
output in a reverse direction, if the result of the output in a reverse direction, if the result of the output in a reverse direction, if the result of the output in a reverse direction, if the result of the output in a reverse direction, if the result of the
corresponding PID calculation was negative. corresponding PID calculation was negative. corresponding PID calculation was negative. corresponding PID calculation was negative.
Parameter Parameter
Item Item
PID2 selection PID2 selection
PID3 selection PID3 selection
PID4 selection PID4 selection
PID2/PID3/PID4 I control integral reset function PID2/PID3/PID4 I control integral reset function PID2/PID3/PID4 I control integral reset function PID2/PID3/PID4 I control integral reset function PID2/PID3/PID4 I control integral reset function
[PIDC2]/[PIDC3]/[PIDC4] [PIDC2]/[PIDC3]/[PIDC4] [PIDC2]/[PIDC3]/[PIDC4]
A
• • This is a function to clear an integral figure of the This is a function to clear an integral figure of the This is a function to clear an integral figure of the This is a function to clear an integral figure of the This is a function to clear an integral figure of the
corresponding PID operation. corresponding PID operation. corresponding PID operation.
• In the case of turning • In the case of turning ON the
[PIDC2]/[PIDC3]/[PIDC4] terminal, do so when the [PIDC2]/[PIDC3]/[PIDC4] terminal, do so when the [PIDC2]/[PIDC3]/[PIDC4] terminal, do so when the [PIDC2]/[PIDC3]/[PIDC4] terminal, do so when the [PIDC2]/[PIDC3]/[PIDC4] terminal, do so when the
corresponding PID is not in operation. corresponding PID is not in operation. corresponding PID is not in operation. corresponding PID is not in operation.
PID2/PID3/PID4 disable function PID2/PID3/PID4 disable function PID2/PID3/PID4 disable function
[PID2]/[PID3]/[PID4] [PID2]/[PID3]/[PID4] [PID2]/[PID3]/[PID4]
Ａ
• • Turning ON the corresponding terminal disables Turning ON the corresponding terminal disables Turning ON the corresponding terminal disables Turning ON the corresponding terminal disables Turning ON the corresponding terminal disables
PID operation temporarily and performs output PID operation temporarily and performs output PID operation temporarily and performs output PID operation temporarily and performs output PID operation temporarily and performs output
according to frequency command. according to frequency command. according to frequency command.
PID output range PID output range
Terminal Terminal
name
[AJ-16] 0.00~
[AJ-36] 0.00~
[AJ-56] 0.00~
41] of
Terminal Terminal
name
[AJ-01] 01]
[AJ-21] 21]
[AJ-41] 41]
ON the
! !
• In the case of using this function, set the In the case of using this function, set the In the case of using this function, set the In the case of using this function, set the In the case of using this function, set the
corresponding PID changeable range corresponding corresponding
([AJ/16]/[AJ-36]/[AJ ([AJ/16]/[AJ
the maximum speed as 100% (PID target value ± the maximum speed as 100% (PID target value ± the maximum speed as 100% (PID target value ± the maximum speed as 100% (PID target value ± the maximum speed as 100% (PID target value ± the maximum speed as 100% (PID target value ±
changeable range). changeable range). changeable range).
PID changeable range [AJ-16]/[AJ PID changeable range [AJ PID changeable range [AJ
PID changeable range [AJ-16]/[AJ PID changeable range [AJ PID changeable range [AJ
Time (s)
Data
Changeable range based on Changeable range based on PID2 Changeable range based on Changeable range based on
~100.00(%)
target value target value
Changeable range based on Changeable range based on Changeable range based on PID3 Changeable range based on
~100.00(%)
target value target value
Changeable range based on Changeable range based on Changeable range based on PID4 Changeable range based on
~100.00(%)
target value target value
! !
• When [AJ When [AJ-01]/[AJ 01]/[AJ-21]/[AJ-
reverse output), the PID changeable range limit reverse output), the PID changeable range limit reverse output), the PID changeable range limit reverse output), the PID changeable range limit reverse output), the PID changeable range limit
function [AJ-16]/[AJ function [AJ
the negative direction. the negative direction. the negative direction.
Data
Enable (if command becomes negative, Enable (if command becomes negative, Enable (if command becomes negative, Enable (if command becomes negative,
02
it outputs in a reverse it outputs in a reverse it outputs in a reverse direction)
! !
• Turning ON the [PIDC2]/[PIDC3]/[PIDC4] terminal Turning ON the [PIDC2]/[PIDC3]/[PIDC4] terminal Turning ON the [PIDC2]/[PIDC3]/[PIDC4] terminal Turning ON the [PIDC2]/[PIDC3]/[PIDC4] terminal Turning ON the [PIDC2]/[PIDC3]/[PIDC4] terminal Turning ON the [PIDC2]/[PIDC3]/[PIDC4] terminal
during PID operation clears the integral value during PID op during PID op
added to the PID output command and changes added to the PID output command and changes added to the PID output command and changes added to the PID output command and changes added to the PID output command and changes
the PID output command value abruptly, resulting the PID output command value abruptly, resulting the PID output command value abruptly, resulting the PID output command value abruptly, resulting the PID output command value abruptly, resulting the PID output command value abruptly, resulting
in an over-current error. in an over current error.
• The The inpu value inpu value as PID command will be adopted for
frequency command. frequency command. frequency command.
12 12-10-27 27
Inverter Functions Inverter Functions Inverter Functions
PID changeable range PID changeable range
36]/[AJ-56]). Restriction will be set with 56]). Restriction will be set with 56]). Restriction will be set with 56]). Restriction will be set with
16]/[AJ-36]/[AJ-56] 56]
16]/[AJ-36]/[AJ-56] 56]
Description Description
21]/[AJ-41] is set to 02 (with 41] is set to 02 (with
16]/[AJ-36]/[AJ 36]/[AJ-56] will be extended to 56] will be extended to 56] will be extended to
Description Description
direction)
eration clears the integral value eration clears the integral value
as PID command will be adopted for as PID command will be adopted for as PID command will be adopted for