Chapter 6 PC mutiple Multi-segment instruction,PLC
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100.0%. When used as a frequency source, it is a percentage of the relative frequency;
when the VF is separated from the voltage source, it is relative to the rated voltage of the
motor. Percentage; since the PID given is originally a relative value, the multi-segment
instruction does not require a dimension conversion as a PID setting source.
The multi-segment instruction needs to be switched according to the different states of
the multi-function digital X. For details, please refer to the relevant description of the P4
group.
PC-16
Simple PLC operation
mode
0
：
Single run end shutdown
1: Keep the final value at the end of a
single run 2: Always cycle
Default
：
0
The simple PLC function has two functions: as a frequency source or as a voltage source
for VF separation.
When the simple PLC is used as the frequency source, the positive and negative of PC-
00~PC-15 determine the running direction. If it is negative, it means the inverter runs in
the opposite direction.
Running direction
Time t
PC-19
PC-21
PC-02
PC-15
PC-01
PC-20
PC-18
PC-23
Status signal output
250ms pulse
PC-14
PC-00
.....
Figure 6-30 Simple PLC schematic
As a frequency source, the PLC has three modes of operation. When the VF is separated as
a voltage source, these three modes are not available. among them:
0: Single run end shutdown
After the inverter completes a single cycle, it will stop automatically and need to give the
running command again to start.
1: After the single run ends, the final value is maintained. After the inverter completes a
single cycle,
Automatically maintain the running frequency and direction of the last segment.
2: Always cycle the inverter after completing a cycle, it will automatically start the next cycle
until it stops when there is a stop command.
