YASKAWA OYMC V1000, Руководство по программированию

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1.2 b: Application
YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual 59
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To enable the timer function, a multi-function input must be set to “Timer input” (H1-
=18) and a multi-function output must be set to “Timer output” (H2- =12). One
timer can be used only.
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b4-01/b4-02: Timer Function On/Off-Delay Time
b4-01 sets the On-delay time for switching the timer output. b4-02 sets the Off-delay time
for switching the timer output.
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Timer Function Operation
When the timer function input closes for longer than the value set in b4-01, the timer output
switches on. When the timer function input is open for longer than the value set in b4-02, the
timer output function switches off. The following diagram demonstrates the timer function
operation.
Figure 1.17
Figure 1.17 Timer Operation
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b5: PID Control
The drive has a built in PID (Propor In Derivative) controller that can be used
for closed loop control of system variables such as pressure, temperature etc. The difference
between the target and the feedback value (deviation) is fed into the PID controller. The PID
controller adjusts the drive output frequency in order to minimize the deviation, providing an
accurate control of the system variables.
■
P Control
The output of P control is the product of the deviation and the P gain so that it follows the
deviation directly and linearly
.
With P control only an offset between the target and feedback
remains.
No. Name Setting Range Default
b4-01 Timer Function On-Delay Time 0.0 to 300.0 s 0.0 s
b4-02 Timer Function Off-Delay Time 0.0 to 300.0 s 0.0 s
ON ON
ON ON
b4-01 b4-02 b4-01 b4-02
Timer input
On (Closed)
Off (Open)
On (Closed)
Off (Open)
Timer output