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FR-F800 series
Instruction Manual Supplement
1
Selection of the operation when a PID measured value
error is detected
• The operation when the PID measured value exceeds the upper or lower limit can be selected.
Pr.
Name
554
PID signal operation
A604
selection
1370
Detection time for PID
A442
limiting operation
Operation selection and sleep function stop selection when a value
error is detected (FUP signal, FDN signal, Y48 signal, Pr.554)
• Set the operation when the measured value input exceeds the upper limit (Pr.131 PID upper limit) or lower limit
(Pr.132 PID lower limit), or when the deviation input exceeds the permissible value (Pr.553 PID deviation limit)
in Pr.554 PID signal operation selection.
• Set the time from when the measured value input exceeds the Pr.131 or Pr.132 setting until the FUP or FDN
signal is output in Pr.1370 Detection time for PID limiting operation.
• Set Pr.554 to select the operation when the FUP/FDN or Y48 signal is output, and the operation when the sleep
function is activated.
Pr.554
setting
At FUP/FDN signal output
0
Signal output only
(Initial value)
1
Signal output + output shutoff (E.PID)
2
Signal output only
3
Signal output + output shutoff (E.PID)
4
Signal output + deceleration stop (E.PID)
5
Signal output + deceleration stop (restart)
6
Signal output + deceleration stop (E.PID)
7
Signal output + deceleration stop (restart)
10
Signal output only
11
Signal output + output shutoff (E.PID)
12
Signal output only
13
Signal output + output shutoff (E.PID)
14
Signal output + deceleration stop (E.PID)
15
Signal output + deceleration stop (restart)
16
Signal output + deceleration stop (E.PID)
17
Signal output + deceleration stop (restart)

When each of Pr.131, Pr.132 and Pr.553 settings corresponding to each of the FUP, FDN and Y48 signals is "9999" (no function),
signal output and protective function are not available.

At the same time with the signal output, the protective function (E.PID) is activated.

At the same time with the signal output, deceleration is performed using the normal deceleration time. After the deceleration stop,
the protective function (E.PID) is activated.

At the same time with the signal output, deceleration is performed using the normal deceleration time. When the measured value
returns to normal, operation can be restarted.
Initial
Setting range
value
0
0 to 7, 10 to 17
0 s
0 to 900 s
Inverter operation
At Y48 signal output

Signal output only

Signal output + output shutoff
(E.PID)


Signal output only


Signal output + output shutoff
(E.PID)

Signal output only

Signal output + output shutoff
(E.PID)


Signal output only


Signal output + output shutoff
(E.PID)

1
Description
The operation when the upper or lower limit for a
measured value input is detected or when a limit for the
deviation is detected can be selected. The operation for
PID output suspension function can be also selected.
Set the time from when the measured value input exceeds
the Pr.131 or Pr.132 setting until the FUP or FDN signal is
output.





At sleep function activation
Coasting to stop
Deceleration stop
BCN-C22005-703

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Summary of Contents for Mitsubishi FR-F800 Series

  • Page 1 FR-F800 series Instruction Manual Supplement Selection of the operation when a PID measured value error is detected • The operation when the PID measured value exceeds the upper or lower limit can be selected. Initial Name Setting range Description value...
  • Page 2 • Example chart: Protective function (E.PID) activation at the same time with the signal output (Pr.554="1, 3, 11, or 13") / Protective function activation after the deceleration stop (Pr.554="4, 6, 14, or 16") (reverse action) Measured value Upper limit level Pr.1370 Pr.1370 Pr.1370...
  • Page 3 PID control enhanced functions • PID control enhanced functions can be used to perform PID control according to applications. (For the details of the PID control, refer to page 378 of the Instruction Manual (Detailed).) Refer Initial Setting Name Description value range page...
  • Page 4: Operation Selection

    Refer Initial Setting Name Description value range page Terminal 1 pressure input Terminal 2 pressure input 1377 PID input pressure 9999 A452 selection Terminal 4 pressure input 9999 The PID input pressure control function is disabled. 1378 PID input pressure 0 to 100% Set the input pressure warning level.
  • Page 5 Stirring function during the PID sleep (Pr.1364 and Pr.1365) • This function starts the pump periodically to prevent clogging of the pump while the PID output suspension function (sleep function) is activated. • When the sleep function is activated and the elapsed time exceeds the Pr.1365 Stirring interval time, the pump is operated at the stirring frequency (Pr.232 or Pr.233).
  • Page 6 PID priming pump function (Pr.1363) • This function starts the priming pump first before starting the main pump so that the main pump does not intake air at start. • When the start command is turned ON after setting Pr.1363 PID Priming time"9999", the priming pump operation signal (Y217) turns ON to start the priming pump.
  • Page 7 PID auxiliary pressure pump function (Pr.1374 and Pr.1375) • This function enables signal output to activate an auxiliary pressure pump when the pump flow rate is low in the system which constantly requires a high pressure. • When the deviation exceeds the auxiliary pressure pump operation starting level (Pr.1374 Auxiliary pressure pump operation starting level - 1000%) after the PID output suspension function (sleep function) is activated, the auxiliary pressure pump starts and the auxiliary pressure pump operation signal (Y226) turns ON.
  • Page 8 PID overpressure control (Pr.1370 and Pr.1376) • When the main valve is suddenly closed in the multi-pump function system, a sudden increase of the pipe pressure may occur, and the pipes may be broken. To prevent fracture of the pipes, all auxiliary motors are stopped when the feedback value exceeds the predetermined level.
  • Page 9 Check valve deceleration function (Pr.111 and Pr.1369) • When the pump is stopped, slow deceleration can be applied to the predetermined section to prevent the water hammer sound caused by closing the valve. • The Pr.111 Check valve deceleration time setting is applied to the section between Pr.2 Minimum frequency and Pr.1369 Check valve closing completion frequency.
  • Page 10 Measured value Upper limit level Pr.131 (Pr.1143) Pr.1371 Upper limit pre-warning level Pr.1370 Pr.1370 Measured value Pr.1370 Pr.1370 Lower limit pre-warning level Pr.1371 Lower limit level Pr.132 (Pr.1144) Time Pr.1370 Pr.1370 Y219(Y220) Pr.1370 Pr.1370 Pr.1370 Pr.1370 Pr.1370 Pr.1370 Set point Pr.1372 Normal set point Pr.1373...
  • Page 11 PID input pressure control (Pr.1370, Pr.1373, and Pr.1377 to Pr.1381) • This function controls the pump inlet pressure to prevent water shortage that may cause air intake or cavitation on the pump. • To enable the PID input pressure control function, set the terminal for the pressure input in Pr.1377 PID input pressure selection.
  • Page 12 For reverse action Input pressure Input pressure Input pressure warning level (Pr.1378) Input pressure fault level (Pr.1379) Time Pr.1370 Pr.1370 Pr.1370 Pr.1370 Pr.1370 Pr.1370 Pr.1370 Pr.1370 Pr.1370 Set point Pr.1380 Pr.1373 Pr.1373 Time Y229 When Pr.1381 = "0" Y230 When Pr.1381 = "1" Deceleration stop Deceleration stop Deceleration stop...