Mitsubishi Electric MELSEC-Q Series User Manual page 67

3 SPECIFICATIONS
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(c) PV start 2 (time shortened)
Specifying 0 as the set value (SV) at time 0, program control starts from where
the straight line connecting 0 and the set value (SV) of the segment 1 reaches the
measured value (PV) at the start of program control. The time of the segment 1 is
shortened by the time takes to reach the measured value (PV) at the start of
control in the case of zero start.
The time of the segment 1 is shortened when the measured value (PV) and the
set value (SV) satisfy one of the following conditions:
1) 0 Measured value (PV) at the start of program control
the segment 1
2) Set value (SV) of the segment 1
program control
POINT
For PV start 2 (time shortened), program control start varies as below depending
on the relationship of the measured value (PV) at the start of program control and
the set value (SV) of the segment 1.
Set value (SV) of the
segment 1
Smaller than 0
Greater than 0
Greater than the set value (SV) of the
segment 1
Greater than 0
Smaller than 0 Smaller than the set value (SV) of the
segment 1
Measured value (PV) at the start of
0
Condition
Measured value (PV) at the start of
program control
MELSEC-Q
Set value (SV) of
Program control start
Zero start
Starts from the set value (SV) of the
segment 1
Zero start
Starts from the set value (SV) of the
segment 1
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