Delta Electronics VFD-M Series, User Manual

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Chapter 4 Parameters
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4-56 Revision May 2008, ME14, SW V3.04
Example 4 (Pr.78 = 04) Continuously executes program cycles step by step:
In this explanation, the PLC program runs continuously step by step. Also shown are examples of
steps in the reserve direction.
Frequency
60Hz
50Hz
40Hz
30Hz
20Hz
15Hz
10Hz
0Hz
Pr.81
Pr.83
Pr.84
Pr.85
Pr.87
Pr.17
Pr.18
Pr.19
Pr.20
Pr.21
Pr.22
Pr.23
Pr.17=10 Hz
Pr.18=20 Hz
Pr.19=40 Hz
Pr.20=60 Hz
Pr.21=50 Hz
Pr.22=30 Hz
Pr.23=15 Hz
Pr.42=16
Pr.45=09
Pr.46=10
Pr.78=04
Pr.79=34
Pr.81=1.0
Pr.82=1.2
Pr.83=1.5
Pr.84=1.5
Pr.85=0.8
Pr.86=1.7
Pr.87=1.7
*
Note: operating time for each step is 10 times
the settings of Pr.81 to Pr.87.
t
Pr.82 t
t
t t
Pr.86 t
t
*
Pr.17
Time
Pr.81
FWD
REV
Example 5 (Pr.78 = 01) Execute one cycle through the PLC program:
In this example, the PLC program runs continuously. It should be noted that the time interval for each
step may be shorter than expected due to the time required for acceleration and deceleration.
Frequency
60Hz
50Hz
40Hz
30Hz
20Hz
15Hz
10Hz
0Hz
Pr.81
Pr.83
Pr.84
Pr.85
Pr.87
Pr.17
Pr.18
Pr.19
Pr.20
Pr.21
Pr.22
Pr.23
Pr.17=10 Hz
Pr.18=20 Hz
Pr.19=40 Hz
Pr.20=60 Hz
Pr.21=50 Hz
Pr.22=30 Hz
Pr.23=15 Hz
Pr.42=16
Pr.45=09
Pr.46=10
Pr.78=01
Pr.79=34
Pr.81=1.0
Pr.82=1.2
Pr.83=1.5
Pr.84=1.5
Pr.85=0.8
Pr.86=1.7
Pr.87=1.7
*
Note: operating time for each step is 10 times
the settings of Pr.81 to Pr.87.
Pr.82
Pr.86
*
Time
FWD
REV