Mitsubishi Electric FR-F820-00046, Instruction Manual

Page: 544 / 940

(A) Application parameters Parameters
5 - 372
Classification
First PID function parameters Second PID function parameters
Signal Name Signal Name
Input signal
X14 PID control valid terminal X80 Second PID control valid terminal
X64 During retry X79
Second PID forward/reverse action
switchover
X72 PID P control switchover X73 Second PID P control switchover
Output signal
FUP PID upper limit FUP2 Second PID upper limit
FDN PID lower limit FDN2 Second PID lower limit
RL
PID forward/reverse rotation
output
RL2
Second PID forward/reverse rotation
output
PID During PID control activated PID2 Second During PID control activated
SLEEP PID output interruption SLEEP2 During second PID output shutoff
Y48 PID deviation limit Y205 Second PID deviation limit
Tab. 5-179: I/O signals for setting multiple PID functions
NOTES Even if the X14 signal is ON, PID control is stopped and multi-speed or JOG operation is performed
when the RH, RM, RL, or REX signal (multi-speed operation) or JOG signal (JOG operation) is input.
PID control is invalid under the following settings.
Pr. 79 "Operation mode selection" = "6" (Switchover mode)
Note that input to the terminal 1 is added to the terminals 2 and 4 inputs. For example when
Pr. 128 = "20 or 21", the terminal 1 input is considered as a set point and added to the set point of
the terminal 2.
To use terminal 4 and 1 inputs in PID control, set "0" (initial value) to Pr. 858 "Terminal 4 function
assignment" and Pr. 868 "Terminal 1 function assignment". When a value other than "0", PID con-
trol is invalid.
Changing the terminal assignment using Pr. 178 to Pr. 189 or Pr. 190 to Pr. 196 may affect other
functions. Set parameters after confirming the function of each terminal.
When PID control is selected, the minimum frequency becomes the frequency of Pr. 902 and the
maximum frequency becomes the frequency of Pr. 903.
(The Pr. 1 "Maximum frequency" and Pr. 2 "Minimum frequency" settings also are valid.)
During PID operation, the remote operation function is invalid.
When control is switched to PID control during normal operation, the frequency during that oper-
ation is not carried over, and the value resulting from PID calculation referenced to 0 Hz becomes
the command frequency.
PID set point
Frequency command
during normal operation
Normal operation
PID operation
ON
Frequency
command
PID action
Normal operation
Operation when control is switched to PID control during normal operatio