Veichi JT550 Series Manual page 44

Chapter 5 Basic Operation and Test Run
When the simple programmable logic controller (PLC) mode is set as the frequency source, the
operating frequency of the inverter can be switched over among the 16 frequency references. You can set the
holding time and acceleration/deceleration time of the 16 frequency references. For more details, refer to the
descriptions of Group FC.
8: PID
The output of PID control is used as the operating frequency. PID control is generally used in on-site
closed-loop control, such as constant pressure closed-loop control and constant tension closed-loop
control.When applying PID as the frequency source, you need to set parameters of PID function in group FA.
9: Communication setting
The frequency is set by the means of communication. In other conditions, data is given by the host
computer through the communication address 0x1000. The data format is -100.00% to 100.00%. 100.00%
corresponds to the value of maximum frequency in F0.10.
10:AI1+AI2
11:AI1-AI2
12:max(AI1,AI2)
13:min(AI1,AI2)
Figure 5.5 Frequency Source Selection
- 44 -
JT550 Series inverter Manual