Mitsubishi Electric FR-E800, Инструкция по эксплуатации

Страница: 387 / 484

386
15. (A) Application Parameters
15.4 PID control
*6 The item in the parentheses can be always monitored by the measured value monitor.
*7 Input value is "0" when the PLC function is disabled. PID control is disabled when bit 0 of SD1255 is "0".
*8 The measured value is input via the external terminal set in Pr.610 .
• Deviation input
*9 CC-Link, CC-Link IE TSN, and CC-Link IE Field Network Basic are available.
*10 Input value is "0" when the PLC function is disabled. PID control is disabled when bit 0 of SD1255 is "0".
*11 The deviation is input via the external terminal set in
Pr.609 .
 Input/output signals
• Assigning the PID control valid signal (X14) to the input terminal by Pr.178 to Pr.189 (Input terminal function selection)
enables PID control to be performed only when the X14 signal is turned ON. When the X14 signal is OFF, regular inverter
running is performed without PID action. (When the X14 signal is not assigned, PID control is enabled only by setting
Pr.128 ≠ "0".)
• Input signal
• Output signal
NOTE
• Changing the terminal functions with Pr.178 to Pr.189 and Pr.190 to Pr.196 may affect other functions. Set parameters after
confirming the function of each terminal.

PID automatic switchover control (Pr.127)
• The system can be started up more quickly by starting up without PID control activated.
PID action selection
Command
source
PU operation
External operation
Network operation
PLC function
Pr.128 Pr.609 BACnet/IP
Other
communication
*9
60, 61 —
Communication PID control disabled ANALOG VALUE 312
Communication (PID
deviation)
—
1010,
1011
4
70, 71 —
PLC function — — —
SD1248
*10
1010,
1011
5
1010,
1011
2, 3 External
External terminal
*11
External terminal
*11
External terminal
*11
—
Signal Function
Pr.178 to Pr.189
setting
Description
X14 PID control valid 14
When this signal is assigned to the input terminal, PID control is enabled
when this signal is ON.
X72 PID P control switchover 72
Only the proportional term is valid when this signal is turned ON. (Integral and
differential values are reset.)
Signal Function
Pr.190 to Pr.196
setting
Description
Positive
logic
Negative
logic
FUP PID upper limit 15 115 Output when the measured value signal exceeds Pr.131 PID upper limit .
FDN PID lower limit 14 114 Output when the measured value signal falls below Pr.132 PID lower limit .
RL
PID forward/reverse
rotation output
16 116
"Hi" is output when the output display of the operation panel is forward
rotation (the RUN LED is ON) and "Low" is output when the display is reverse
rotation (the RUN LED blinks) and stop (the RUN LED is OFF).
PID
During PID control
activated
47 147
Turns ON during PID control.
When the PID calculation result is reflected to the output frequency (
Pr.128 <
"2000"), the PID signal turns OFF at turn OFF of the start signal.
When the PID calculation result is not reflected to the output frequency
(
Pr.128 ≥ "2000"), the PID signal turns ON during PID calculation regardless
of the start signal status.
Y48
PID deviation limit
48 148 Output when the absolute deviation value exceeds the limit value set in
Pr.553 PID deviation limit .
SLEEP PID output interruption 70 170
Set Pr.575 Output interruption detection time ≠ "9999". This signal turns
ON when the PID output suspension function is activated.