Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 440

■Output at high or low limit of valve opening
The following operations can be selected with the output enabled at high/low limit for opening (LMTOUT_EN) for when PV
(motor valve opening) is 0% or less, or 100% or more during command signal output: output the result of a proportional output
operation as it is or turn off the output forcibly.
TRUE: When PV is 0 or 100%, the result of a proportional output operation is output as it is.
FALSE: When PV is 0%, CLOSE is set to FALSE. When PV is 100%, OPEN is set to FALSE.
■One-shot output for command pulse period
This function block performs one-shot output for command pulse period according to the operation from the faceplate or the
input from the input variables (OPEN_SET, CLOSE_SET).
• When the setting is performed with the faceplate or the value of the input variable (OPEN_SET) is changed from FALSE to
TRUE, this function block outputs a command pulse signal (TRUE) from the output variable OPEN by the time period set
with the command pulse period (DOT).
• When the setting is performed with the faceplate or the value of the input variable (CLOSE_SET) is changed from FALSE to
TRUE, this function block outputs a command pulse signal (TRUE) from the output variable CLOSE by the time period set
with the command pulse period (DOT).
Output signal from the faceplate or
the input pin (rising edge detection)
Command pulse signal from the output pin
• When stop operation is performed with the faceplate or the value of the input variable (STOP_SET) is changed from FALSE
to TRUE, this function block turns off the command pulse signal being output from the output variable OPEN or CLOSE.
Output signal from the faceplate or
the input pin (rising edge detection)
(OPEN_SET/CLOSE_SET)
Stop signal from the faceplate or
the input pin (rising edge detection)
(STOP_SET)
Command pulse signal from the output pin
(OPEN/CLOSE)
■Output exclusion processing
When both the OPEN command output condition and the CLOSE command output condition are satisfied, only the command
output whose output condition is satisfied later is set to TRUE. (The other output command is set to FALSE.)
Ex.
When the command signal output condition of output variable OPEN or CLOSE is TRUE simultaneously
OPEN command signal
output condition
OPEN command
signal output
CLOSE command signal
output condition
CLOSE command
signal output
■Operation location input
When TRUE is input to the LOCAL pin, a proportional output operation is not performed and the outputs from the output pins
OPEN and CLOSE of the FB are set to FALSE. When the input to the LOCAL pin is changed from FALSE to TRUE, the
control mode switches to the MANUAL mode.
12 LOOP TAG
438
12.39 Position Proportional Output (M+M_PVAL_T_)
Command pulse period (DOT)
Command pulse period (DOT)
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