117
VFD Single Channel Analog Output Card and Jumper Settings.
Definitions of the terms used in the Motor Speed screen.
Term Definition Range
Proportional Adjusts the speed based on how far the control 0:1000
Constant parameter currently is from the control setpoint. A higher
P term causes a greater speed changes when far from the setpoint.
Integration Time Adjusts speed based on how rapidly the 0:1000 sec
control parameter should approach the setpoint. A higher
I term causes a slower approach to the setpoint when the
control parameter is not changing.
Derivative Time Adjusts the speed based on the past value 0:1000 sec
of the control parameter. A large D term may result in large
fluctuations in the speed.
Care must be taken to keep D as low as possible.
Control Mode The control for the VFD. Automatic/Manual/Tuning
Automatic lets the VILTech select proper speed.
Manual Speed The VFD speed when Manual mode is selected. 50-100 PCT
VFD Control Type The 4-20mA control signal may be set to direct or reverse. Direct/Reverse
When set to Direct, 4mA is low speed and 20mA is high speed.
When set to Reverse, 20mA is the low speed and 4mA is high speed.
This control is useful for testing purposes.
To Next Page
Loading...
