Pb Swing Frequency, Fixed Length And Counting - Veikong VFD200A Series Operation Manual

PID integral
PA-25
attribute
Integral separation:
If the integral separation is set to be effective, when the multi-function digital X-integration pause
(function 22) is valid, the integral PID integration of the PID stops the calculation, and at this time, the PID
only proportional and differential action is effective.
When the integral separation selection is invalid, the integral separation is invalid regardless of
whether the multi-function digital X is valid or not.
Whether to stop integral operation when the output reaches the limit: If "Stop integral operation" is
selected, the PID integral operation stops, which may help to reduce the PID overshoot.
PID feedback
PA-26 loss detection
value
PID feedback
PA-27 loss detection
time
This function code is used to judge whether the PID feedback is lost.
When the PID feedback amount is less than the feedback loss detection value PA-26 and the duration
exceeds the PID feedback loss detection time PA-27, the inverter alarms the fault Err31 and processes
according to the selected fault processing mode.
PID shutdown
PA-28
operation
It is used to select whether the PID continues to operate under the PID stop state. In general
applications, the PID should stop computing in the shutdown state.

PB Swing frequency, fixed length and counting

The swing frequency function is suitable for textile, chemical fiber and other industries, as well as
Chapter 6 Parameter Instruction
Output frequency
PID Initial
value
PA-21
PID Initial value
retention timePA-22
Figure 6-30 Schematic diagram of PID initial value function
Ones place：Integral separation
0: Invalid 1: Valid
Tens place: Whether to stop integral operation when the
output reaches the limit
0: Continue to integrate
1: Stop integral operation
0.0%：Do not judge feedback loss
0.1%～100.0％
0.0s～20.0s
0：No operation at stop
1: Operation at stop
Time
98
Default：00
Default：0.0%
Default：0.0s
Default：1