Mitsubishi Electric FR-F800, Instruction Manual, Page: 567 / 834

Parameters (A) Application parameters
FR-F800 5 - 405
I003067E
Fig. 5-201: PID upper/lower limit pre-warning
NOTES When Pr. 554 = "5, 7, 15, or 17" and a deceleration stop is performed by the FUP/FDN signal detec-
tion, the set point changed by the Pr. 1372 setting value remains effective.
The set point change by the PID upper/lower limit pre-warning function is enabled when the PID
setting is applied to the frequency.
When the control switches between the first PID control and second PID control while the set
point is changed by the Pr. 1372 setting value or while the Y219 (Y220) signal is output, the set
point returns to its original value.
When the upper limit or lower limit is disabled (Pr.131 or Pr.132 = "9999"), the upper/lower limit
pre-warning function is not activated.
FUP
FDN
Y219(Y220)
Pr.1370 Pr.1370 Pr.1370
Pr.1370
Pr.1370
Pr.1370
Measured value
ON
Measured value
ON ON
Normal set point
Lower limit pre-
warning level
Pr. 1370
Time
Pr. 1370
Set point
Pr. 1371
Pr. 1371
ON
Pr. 1370
Pr. 1373
Pr. 1373
Pr. 1373
Pr. 1372
Pr. 1372
Pr. 1370 Pr. 1370
Pr. 1370
Upper limit pre-
warning level
Lower limit level
Pr.132 (Pr.1144)
Upper limit level
Pr.131 (Pr.1143)