If feed screws are extremely slow and torque heavily
varies, internal speed control can improve material
discharge.
Prerequisite: Speed transducer on drive
1. Calibrate external controller without internal
speed controller (Parameter R 14 = No).
2. Enter setpoint and start feed system
(also possible without material).
3. Read off control magnitude (service value Y) and
mean speed.
4. Compute speed controller normalization and
enter into Parameter R 23.
5. Stop feeder.
Set Parameter B 03 to DI7 and R 14 to YES.
Set Parameter B 04 using Spec Sheet value.
6. Start feeder.
Speed n previously read off should be indicated.
If need be, correct R 17 accordingly.
Bigger deviations suggest wrong characteristic
value B 04.
If controller oscillates, decrease KP and increase
TN (R 15, 16).