Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 579

• The stop action when the inverter output is shut off by the SLEEP function can be selected.
Pr.554 setting
At FUP signal, FDN signal output
0 (initial value) Signal output only
1 Signal output + output shutoff (E.PID)
2 Signal output only
3 Signal output + output shutoff (E.PID)
10 Signal output only
11 Signal output + output shutoff (E.PID)
12 Signal output only
13 Signal output + output shutoff (E.PID)
*1 When each of Pr.131, Pr.132 and Pr.553settings corresponding to each of the FUP, FDN and Y48 signals is "9999" (no function), signal output
and protective function are not available.
 PID output suspension function (SLEEP function) (SLEEP signal, Pr.575
to Pr.577)
• When a status where the output frequency after PID calculation is less than Pr.576 Output interruption detection level
has continued for the time set in Pr.575 Output interruption detection time or longer, inverter running is suspended. This
allows the amount of energy consumed in the inefficient low-speed range to be reduced.
• When the deviation (for instance, = set point - measured value) reaches the PID output shutoff release level (Pr.577 setting
value -1000%) while the PID output suspension function is activated, the PID output suspension function is released, and
PID control operation is automatically restarted.
• Whether to allow motor to coast to a stop or perform a deceleration stop when SLEEP operation is started can be selected
using Pr.554.
• While the PID output suspension function is activated, the PID output interruption (SLEEP) signal is output. During this
time, the Inverter running (RUN) signal turns OFF and the During PID control activated (PID) signal turns ON.
• For the terminal used for the SLEEP signal, set "70 (positive logic)" or "170 (negative logic)" in any of Pr.190 to Pr.196
(Output terminal function selection).
Pr.577 - 1000%
Output frequency
578
5. PARAMETERS
5.14 (A) Application parameters
When Pr.554="0 to 3", reverse operation (Pr.128="10")
Deviation
Pr.576
Less than Pr.575
RUN
PID
SLEEP
Inverter operation
*1
At Y48 signal output
Signal output only
Signal output + output shutoff (E.PID)
Signal output only
Signal output + output shutoff (E.PID)
Pr.575 or more SLEEP period
OFF
ON
*1
At SLEEP operation start
Coasts to stop
Deceleration stop
Cancel
level
Time