Mitsubishi Electric FR-A820-00046 Instruction Manual page 713

Parameters
Input/output signals
● Assigning the PID control valid terminal signal (X14) to the input terminal by Pr. 178 to Pr. 189
(input terminal function selection) enables PID control to be performed only when the X14 signal
is turned ON. When the X14 signal is OFF, regular inverter running is performed without PID action.
● Input signal
Signal Function
X14
X80
X64
X79
X72
X73
Tab. 5-222: Input signals and parameter settings
● Output signal
Signal Function
FUP
FUP2
FDN
FDN2
RL
RL2
PID
PID2
SLEEP
SLEEP2
Tab. 5-223: Output signals and parameter settings
NOTE Changing the terminal functions with Pr. 178 to Pr. 189 and Pr. 190 to Pr. 196 may affect other
functions. Set parameters after confirming the function of each terminal.
FR-A800
PID control valid terminal
Second PID control valid terminal
During retry
Second PID forward/reverse action
switchover
PID P control switchover
Second PID P control switchover
Pr. 190 to Pr. 196
setting value
Positive
logic
PID upper limit 15
Second PID upper limit 201
PID lower limit 14
Second PID lower limit 200
PID forward/reverse
16
rotation output
Second PID forward/
202
reverse rotation output
During PID control
47
activated
Second During PID
203
control activated
PID output interruption 70
During second PID
204
output shutoff
Pr. 178 to
Description
Pr. 189 setting
14
When the signal is assigned to the input terminal, PID
control is enabled when the signal is ON.
80
64
PID control is switched between forward and reverse action
without changing parameters by turning ON the signal.
79
72
Integral and differential values can be reset by turning the
signal ON.
73
Description
Negative
logic
115
Output when the measured value signal exceeds Pr. 131 "PID
upper limit" (Pr. 1143 "Second PID upper limit").
301
114
Output when the measured value signal exceeds Pr. 132 "PID
lower limit" (Pr. 1144 "Second PID lower limit").
300
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).
302
Turns ON during PID control.
147
When the PID calculation result is not reflected to the output
frequency (Pr. 128 < "2000"), the PID signal turns OFF at turn OFF
of the start signal.
When the PID calculation result is reflected to the output
303
frequency (Pr. 128 ≥ "2000"), the PID signal turns ON regardless of
the start signal status during PID calculation.
170
Set Pr. 575 "Output interruption detection time" (Pr. 1147 "Second
output interruption detection time") ≠ "9999". This signal turns
304
ON when the PID output suspension function is activated.
(A) Application parameters
5 - 533