Mitsubishi Electric FR-A800, Instruction Manual

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(A) Application parameters Parameters
5 - 540
Setting multiple PID functions
●
When the second PID function is set, two sets of PID functions can be switched for use. The PID
setting is selected as shown in the table below.
While Pr. 155 = "0", the second function is enabled immediately after RT signal turns ON. While
Pr. 155 = "10", the second function is enabled only during constant speed operation when RT signal
turns ON.
When dancer control is selected, the setting is not applied to the frequency.
Pr.128 setting
(First PID setting) Pr. 753 setting
(Second PID setting) Pr.155
setting
RT signal
PID setting applied to the
output frequency
"0" or not applied to the
frequency "0" or not applied to the
frequency
⎯ ⎯
Control other than PID
control
"0" or not applied to the
frequency
Applied to the frequency
⎯ ⎯
Second PID setting
Applied to the frequency
"0" or not applied to the
frequency
⎯ ⎯
First PID setting
Applied to the frequency Applied to the frequency
0
OFF First PID setting
ON Second PID setting
10
⎯
First PID setting
Dancer control
Not applied to the frequency
⎯ ⎯
Dancer control
Tab. 5-227: Selection of PID settings