Mitsubishi Electric FR-E800, Инструкция по эксплуатации

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15. (A) Application Parameters
15.4 PID control
NOTE
• While the integral stop is selected, the integral stop is enabled when any of the following conditions is met.
 PID monitor function
• This function displays the PID control set point, measured value and deviation on the operation panel, and can output these
from the terminals FM and AM.
• An integral value indicating a negative % can be displayed on the deviation monitor. 0% is displayed as 1000. (These
values cannot be output on the deviation monitor from terminals FM.)
• Set the following values to Pr.52 Operation panel main monitor selection, Pr.774 to Pr.776 (Operation panel monitor
selection), Pr.992 Operation panel setting dial push monitor selection, Pr.54 FM terminal function selection and
Pr.158 AM terminal function selection
for each monitor.
*1 When C42 (Pr.934) and C44 (Pr.935) are set, the minimum increment changes from unit % to no unit, and the monitor range can be changed.
(Refer to page 393 .)
*2 When the minus value display is set disabled using Pr.290 , the terminal AM output becomes "0".
 Adjustment procedure
1.
Enable PID control
When
Pr.128 ≠ "0", PID control is enabled.
Set the set point, measured value and deviation input methods at Pr.128, Pr.609 and Pr.610 .
2.
Setting the parameter
Adjust the PID control parameters of
Pr.127, Pr.129 to Pr.134, Pr.553, Pr.554, Pr.575 to Pr.577 .
3.
Terminal setting
Set the I/O terminals for PID control. (
Pr.178 to Pr.189 (Input terminal function selection), Pr.190 to Pr.196
(Output terminal function selection) )
4.
Turing ON the X14 signal assigned to the input terminal
When the X14 signal is assigned to the input terminal, PID control is enabled by the X14 signal turning ON.
5.
Operation
Integral stop conditions
• The frequency reaches the upper or lower limit.
• The manipulated amount reaches plus or minus 100% (
Pr.1015 = "0").
• The manipulated amount reaches 0% or 100% ( Pr.1015 = "2").
Parameter
Setting
Monitor
description
Minimum
increment
Monitor range
Remarks
Terminal FM
Terminal
AM
Operation
panel
52 PID set point
0.1%
0% to 100%
*1
"0" is displayed at all times when PID control
is based in deviation input.
53
PID measured
value
67
PID measured
value 2
0.1%
0% to 100%
*1
Displays PID measured value even if the PID
control operating conditions are not satisfied
while the PID control is enabled.
"0" is displayed at all times when PID control
is based in deviation input.
54 PID deviation 0.1%
Setting not
available
-100% to
100%
*1*2
900% to
1100%
Using Pr.290 Monitor negative output
selection , negative values can be output to
the terminal AM.
The indicated values are from "900%" to
"1100%" on the operation panel. (0% is offset
and displayed as "1000%".)
91
PID manipulated
amount
0.1%
Setting not
available
-100% to
100%
*2
900% to
1100%