Mitsubishi Electric FR-F820-04750 Instruction Manual page 528

(A) Application parameters
Classification
Input signal
Output signal
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.
Frequency
command
Operation when control is switched to PID control during normal operatio
5 - 366
First PID function parameters
Signal Name
X14 PID control valid terminal
X64 During retry
X72 PID P control switchover
FUP PID upper limit
FDN PID lower limit
PID forward/reverse rotation
RL
output
PID During PID control activated
SLEEP PID output interruption
Y48 PID deviation limit
PID set point
PID action
PID operation
Normal operation
Signal
FDN2
SLEEP2
Frequency command
during normal operation
ON
Normal operation
Second PID function parameters
Name
X80 Second PID control valid terminal
Second PID forward/reverse action
X79
switchover
X73 Second PID P control switchover
FUP2 Second PID upper limit
Second PID lower limit
Second PID forward/reverse rotation
RL2
output
PID2 Second During PID control activated
During second PID output shutoff
Y205 Second PID deviation limit
Parameters