Mitsubishi Electric FR-A700 Instruction Manual page 670

Special operation
Pr. No. Name
132
PID lower limit
PID action set
133
point
PID differential
134
time
Output
575
interruption
detection time
Output interrup-
576
tion detection level
Output interrup-
577
tion release level
Pr. 129, Pr. 130, Pr. 133 and Pr. 134 can be set during operation. They can also be set
independently of the operation mode.
Refer to the FR-A700 PLC function programming manual for details of the PLC function.
6 - 490
Initial Setting
Description
Value Range
Set the lower limit value. If the measured
value falls below the setting range, the
0–100% FDN signal is output. The maximum
9999
input (20mA/5V/10V) of the measured
value (terminal 4) is equivalent to 100%.
9999 No function
0–100% Used to set the set point for PID control.
9999
9999 Terminal 2 input is the set point.
For deviation lamp input, time (Td)
required for providing only the manipu-
lated variable for the proportional (P)
0.01–10.00s
action. As the differential time increases,
9999
greater response is made to a deviation
change.
9999 No differential control.
The inverter stops operation if the output
frequency after PID operation remains at
0–3600s
less than the Pr. 576 setting for longer
1s
than the time set in Pr. 575.
9999 Without output interruption function
Set the frequency at which the output
0Hz 0–400Hz
interruption processing is performed.
Set the level (Pr. 577 minus 1000%) to
1000% 900–1100% release the PID output interruption func-
tion.
Parameters referred to
see previous page
Parameter
Refer to
Section