Chapter 5 Parameters
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VFD-B Series
Revision July 2008, BE16, SW V4.08 & V5.00
5-61
Example 2 (Pr.05-15 = 2): Continuously execute program cycles:
The diagram above shows the PLC program stepping through each speed. Setting Pr.05-15 to 2
continuously executes the program. To stop the PLC program, one must either pause the program or
turn it off. (Refer to Pr.04-04 to 04-09 values 14 and 15).
Example 3 (Pr.05-15 = 3) Execute one cycle step by step:
The example below shows how the PLC can perform one cycle at a time, within a complete cycle.
Each step will use the accel/decel times in Pr.01-09 to Pr.01-12. Note that the actual time each step
stays at its intended frequency is reduced, due to the time for accel/decel.
ON
ON
ON
ON
OFF
1
2
3
4
ON
OFF
OFF
t
t
t
05-17
05-18
05-19
05-20
05-00
05-01
05-02
05-03
Frequency
Time
Program operation
command
Program operation
indication
Step operation
indication
PLC operation execution one cycle step by step
05 - 16
PLC Forward/Reverse Motion
Unit: 1
Settings
00 to 32767
Factory Setting: 00
This parameter controls the direction of motion for the Multi-Step Speeds Pr.05-00 to Pr.05-14
during PLC mode. All other direction commands are invalid during the PLC mode.
NOTE
The equivalent 15-bit number is used to program the forward/reverse motion for each of the 15 speed
steps. The binary notation for the 15-bit number must be translated into decimal notation and then
entered.
