Chapter 4 Parameters
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VFD-L-I Series
4-34
Revision July 2009, SW V1.1
Example 3 (Pr. 05-03 = 3) Execute one cycle step by step:
The example shows how the PLC can perform one cycle at a time, within a complete cycle. Each
step will use the acceleration/deceleration times. It should be noticed that the time each step
spends at its intended frequency is diminished, due to the time spent during
acceleration/deceleration.
4 0Hz
3 0Hz
2 0Hz
1 5Hz
1 0Hz
5 Hz
0 Hz
P r.05 -0 5
P r.05 -0 6
P r.05 -0 7
P r.05 -0 8
P r.05 -0 0
P r.05 -0 1
P r.05 -0 2
Ma ster fre qu en cy=5 Hz
P r.05 -0 0= 10 Hz
5 -0 1=20 Hz
5 -0 2=40 Hz
P r.0
P r.0
P r.04 -0 6=16
P r.03 -0 3=11
P r.05 -0 3= 3
5 -0 4=0
5 -0 5=10
5 -0 6=12
5 -0 7=15
5 -0 8=17
P r.0
P r.0
P r.0
P r.0
P r.0
t
Fr eq ue ncy
S tep op er ati on comma nd
Time
Time
Ma ster
Fr eq ue ncy
Example 4 (Pr. 05-03 =4) Continuously execute PLC cycles step by step:
The diagram below shows the PLC program stepping through each speed and stopping before
restart for each step change. To stop the PLC program, it needs to set the auto PLC command to
be off.
40Hz
20Hz
15Hz
10Hz
5Hz
0Hz
Pr. 05-05 Pr. 05-06
Pr. 05-07
Pr. 05-08
Pr. 05-00
Pr. 05-01
Pr. 05-02
Mast er frequenc y=5Hz
Pr. 05-00=10Hz
5-01=20Hz
5-02=40Hz
Pr. 0
Pr. 0
5-03= 4
5-04= 4
Pr. 04-06=16
Pr. 03-05=10
Pr. 0
Pr. 0
5-05=10
5-06=10
5-07=12
5-08=15
Pr. 0
Pr. 0
Pr. 0
Pr. 0
t
Pr. 05-09
t
t
t
FWD
Frequenc y
REV
Mast er
Frequenc y
Mast er
Frequenc y
Time
Summary of Contents for VFD-L-I Series
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