Hitachi SH1-007H - Page 66

4-23
Chapter 4
For parameter configuration
[AJ-21] to [AJ-30]
PID3 function
Code/Name
Range (unit)
Initial
value
AJ-21 PID3
enable
00(Disable)/01(Enable)/
02(Enable (with inverted output))
00
・The PID3 function is enabled with the above parameter.
・If [AJ-21]=01 when the PID output reaches a negative
value, the PID output is limited to 0.
・If [AJ-21]=02 when the PID output reaches a negative
value, the PID output lets out an inverted output.
・By turning on the input terminal 045[PID3], the PID3
output becomes 0.
Code/Name
Range (unit)
Initial value
AJ-22PID3 deviation inversion
00(Disable)/
01(Enable)
00
・PID3 deviation can be reversed.
Code/Name
Range (unit)
Initial
value
AJ-23 PID3 unit selection
Refer <unit table> of
the end of this
chapter.
01
AJ-24
PID3 scale adjustment (0%)
-10000 to 10000
0
AJ-25
PID3 scale adjustment (100%)
-10000 to 10000
10000
AJ-26 PID3 scale adjustment
(decimal point position)
0 to 4
2
・You can switch the display data and the display unit
involved in the output of the PID control by the
calculation.
Code/Name
Range (unit)
Initial
value
AJ-27 PID3 set-point input
source selection
00 to 13 *1)
07
AJ-30 PID3 set-point setting
-100.00 to 100.00(%)
*2)
0.00
*2) Range will depend on the parameters [AJ-24] [AJ-25] [AJ-26]
・When PID3 target value input is selected, if the selected
is the parameter setting, [AJ-30] is enabled.
Code/Name
Range (unit)
Initial
value
AJ-32 PID3 feedback input
source selection
00 to 06/08 to 13 *1)
01
・Selects the PID3 feedback reference.
*1) 00(Not used)/01(Terminal[Ai1])/02(Terminal[Ai2])/03(Terminal[Ai3])/
04(Terminal[Ai4])/05(Terminal[Ai5])/06(Terminal[Ai6])/07(Parameter
setting)/08(RS485)/09(Option-1)/10(Option-2)/11(Option-3)/12(Pulse train
input (internal)/13(Pulse train input (option)
[AJ-33] to [AJ-39]
Code/Name
Range (unit)
Initial
value
AJ-33 PID3 proportional gain
0.0 to 100.0
1.0
AJ-34 PID3 integral time constant
0.0 to 3600.0(s)
1.0
AJ-35 PID3 derivative gain
0.00 to
100.00(s)
0.00
・The PID3 gains are set by the above parameters.
・If input terminal 046[PIDC3] is active (ON), the value of
the integral constant is cleared. If it is done while the
inverter is in running, the driving condition may
become unstable.
Code/Name
Range (unit)
Initial value
AJ-36 PID3 output variable
0.00 to 100.00(%)
0.00
・[AJ-36] Limits the output range of the PID.
If [AJ-36] =0.00 the limit is disabled.
Code/Name
Range (unit)
Initial value
AJ-37 PID3 over deviation
level
0.00 to 100.00(%)
3.00
・When the PID deviation pass over ±[AJ-37], the output
terminal 089[OD3] is activated.
Code/Name
Range (unit)
Initial
value
AJ-38 Turn-off level for the PID3
feedback compare signal
0.00 to 100.00(%)
100.00
AJ-39 Turn-on level for the PID3
feedback compare signal
0.00 to 100.00(%)
0.00
・When the PID feedback cross over the [AJ-38] level, the
output terminal 090[FBV3] is OFF. If the PID feedback
crosses under the [AJ-39] level, 090[FBV3] is turned on.
PID feedback (%)
Time(s)
0%
[AJ-38]
090[FBV3]
RUN command
[AJ-39]
ON
ON
ON
PID deviation (%)
Time(s)
0%
[AJ-37]
Output
terminal
089[OD3]
ON
ON
[AJ-37]
PID output (%)
Time(s)
PID
Target
value
[AJ-36]
PID output range
[AJ-36
]
PID3
deviation
inversion
[AJ-22]
PID
deviation
PID target
value
+
00
01
-
×(-1)
Feedback
value