Mitsubishi FR-A800

(A) Application parameters
526
PARAMETERS
• Output signal
NOTE
• 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.
PID monitor function
• This function displays the PID control set point and measured value on the operation panel, and can output these from the
terminals FM, AM and CA.
• 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/CA terminal function selection and
Pr.158 AM terminal function selection for each monitor.
NOTE
• Refer to page 510 for details on other PID control monitors.
Priority of main speed commands
• The priority of main speed command sources when the speed command source is External is as follows:
JOG signal > multi-speed setting signal (RL/RM/RH/REX) > pulse train input > 16bit digital input (option FR-A8AX) >
analog input (terminals 2, 4, 1)
• The priority of main speed command sources when "3" is set to Pr.79 Operation mode selection is as follows:
Multi-speed setting signal (RL/RM/RH/REX) > frequency setting (digital setting by PU or operation panel)
• Even if the remote operation function is selected by Pr.59 Remote function selection  "0", compensation of the remote
setting frequency against the main speed is ignored. (The value is "0".)
• If terminal 1 is selected for the first and second PID, terminal 1 added compensation of the main speed is invalid.
• If terminal 2 is selected for the first and second PID, the terminal 2 override function of the main speed is invalid.
• If the same terminal as an external input terminal having a speed command source (external terminal where a main speed
is input) is specified as the measured value input or set point input, the main speed is treated as "0".
• Polarity reversible operation of the main speed is not possible.
Signal Function
Pr.190 to Pr.196
setting
Description
positive
logic
negative
logic
FUP PID upper limit 15 115
Output when the measured value signal exceeds Pr.131 PID upper limit
(Pr.1143 Second PID upper limit).
FDN PID lower limit 14 114
Output when the measured value signal exceeds Pr.132 PID lower limit
(Pr.1144 Second PID lower limit).
RL
PID forward/reverse
rotation output
16 116
"HI" is output when the output display of the parameter unit is forward rotation
(FWD) and "LOW" is output when the display is reverse rotation (REV) and stop
(STOP).
PID
During PID control
activated
47 147 Turns ON during PID control.
Parameter
settings
Monitor
description
Minimum
increment
Monitor range
Remarks
Terminal
FM/CA
Terminal
AM
Operation
panel
97
Dancer main
speed setting
0.01 Hz 0 to 590 Hz
When outputting from terminals FM, CA and
AM, the full scale value can be adjusted by
Pr.55 Frequency monitoring reference.