N700E INSTRUCTION MANUAL
4-14
Func-
code
Name
Run-
time
Edit
Description
Defaults
PID Control(Note4)
A70 PID Function selection
X
Enables PID function and Feed Forward Function,
three option codes:
0.... PID control disable
1.... PID control enable
2.... F/F control enable
0
A71 PID Reference
O
Displays the PID reference. If parameter A72 = 2,
Used to adjust the PID reference from UP/DOWN key
0.0 to 100.0% in units of 0.01%
0.00%
A72 PID Reference source
X
Four options : select codes:
0.... Keypad potentiometer
1.... Control terminal input
2.... Standard operator
3.... Remote operator(communication)
2
A73 PID Feed-back source
X
Selects source of PID, option codes:
0.... "OI" (current input)
1.... "O" (voltage input)
0
A74 PID P gain
O
Sets the proportional gain that is applied to the
deviation between the reference and the feedback
signal.
0.1 to 1000% in units of 0.1%
100.0%
A75 PID I gain
O
Set the integral time to output the accumulated PID
error value.
0.0 to 3600sec in units of 0.1sec
1.0sec
A76 PID Dgain
O
Sets the output value to the variation of the PID input.
0.00 ~ 10.00sec in units of 0.01sec
0.0sec
A77 PID Err limit
O
Set the maximum/minimumPID input(error) as
a percentage of the maximum error.
0.0 ~ 100.0% in units of 0.1%
100.0%
A78 PID Output high limit
O
Set the maximum PID output as a percentage of
the maximum output frequency (A04).
-100.0 ~ 100.0% in units of 0.1%
100.0%
A79 PID Output low limit
O
Set the minimum PID output as a percentage of
the maximum output frequency (A04).
When set to 0.00%, the low limitis disabled.
-100.0% ~ 100.0% in units of 0.1%
0.0%