Mitsubishi Electric FR-A520-0.4K -55K Instruction Manual page 140

( 4 ) I/O signals
Signal Terminal Used
Depending on PID control
X14
Pr. 180 to Pr. 186 selection
2 2
Set point input
Deviation signal
1 1
input
Process value
4 4
input
FU
Upper limit output
P
FD
Lower limit output
N
Depending on
Pr. 191 to Pr. 195
Forward (reverse)
RL
rotation direction
output
Output terminal
SE SE
common
To start PID control, switch on the X14 signal. When this signal is off, ordinary inverter operation is
z
performed without the PID action being performed.
Enter the set point across inverter terminals 2-5 or into Pr. 133 and enter the process value signal across
z
inverter terminals 4-5.
When entering the externally calculated deviation signal, enter it across terminals 1-5. At this time, set "10"
z
or "11" in Pr. 128.
Item Entry
Set point Across terminals 2-5
Pr. 133
Set point
Deviation
Across terminals 1-5
signal
Process
Across terminals 4-5
value
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Function Description
Switch on X14 to select PID control.
Enter the set point for PID control.
Enter the deviation signal calculated externally.
Enter the 4-20mADC process value signal from
the detector.
Output to indicate that the process value signal
exceeded the upper limit value.
Output to indicate that the process value signal
exceeded the lower limit value.
"Hi" is output to indicate that the output
indication of the parameter unit is forward
rotation (FWD) or "Low" to indicate that it is
reverse rotation (REV) or stop (STOP).
Common to terminals FUP, FDN and RL
Set 0V as 0% and 5V as 100%.
Set 0V as 0% and 10V as 100%.
Set the set point (%) in Pr. 133.
Set −5V as −100%, 0V as 0% and +5V as
+100%.
Set −10V as −100%, 0V as 0% and +10V as
+100%.
4mADC is equivalent to 0% and 20mADC to 100%.
127
PARAMETERS
Remarks
Set any of "10, 11, 20
and 21" in Pr. 128.
(Pr. 128 = 20,
21)
(Pr. 128 = 10,
11, 20, 21)
Description
When "1, 3, 5, 11, 13 or 15" is set in Pr. 73
(5V selected for terminal 2).
When "0, 2, 4, 10, 12 or 14" is set in Pr. 73
(10V selected for terminal 2).
When "2, 3, 5, 12, 13 or 15" is set in Pr. 73
(5V selected for terminal 1).
When "0, 1, 4, 10, 11 or 14" is set in Pr. 73
(10V selected for terminal 1).