VLT
®
FCD Series
Starting conditions
In some applications the optimal setting of the pro-
cess regulator will mean that a relatively long period
of time will pass before the required process condi-
tion is achieved. In these applications it can be a
good idea to define an output frequency to which the
frequency converter must run the motor before the
process regulator is activated. This is done by pro-
gramming a start frequency in parameter 439
Process PID start frequency
.
■
Handling of feedback
Feedback handling is depicted in this flowchart.
The flowchart shows which parameters can affect
the handling of feedback and how. A choice can be
made between voltage, current and pulse feedback
signals.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.04.A1.02 - VLT is a registered Danfoss trade mark
87
Programming
