Decanter Jogging - ABB ACS880 Supplement Manual

28 Decanter program features
If Bowl motor is rotating in the forward direction, Scroll motor must also be rotating in the
forward direction. This can be achieved by setting the parameters in Group
control. D1 and D2 are Bowl and Scroll motor drives as represented in the above figure.
Since Scroll motor is directly coupled to gearbox, the parameters corresponding to D3 and
D4 (belt roller diameter) must be set to 1. The communication between Scroll drive and
Bowl drive is maintained through DDCS (M/F) link.
Bowl drive parameter settings:
78.01 Decanter mode select
78.07 Bowl belt D1
78.08 Bowl belt D2
Scroll drive parameter settings:
78.01 Decanter mode select
78.04 Delta speed function
78.07 Bowl belt D1
78.08 Bowl belt D2
78.09 Gearbox ratio
78.10 Scroll belt D3
78.11 Scroll belt D4

Decanter jogging

The Decanter jogging function enables to run the scroll drive separately at the preset
speed. This function is used during servicing or commissioning, mainly to remove any
material blocked in the decanter. Jogging overrides the delta speed reference.
See parameter group
= Bowl
= Value of D1
= Value of D2
= Scroll
= Forward drive
= Value of D1
= Value of D2
= Gearbox ratio
= Value of D3 = 1
= Value of D4 = 1
79 Decanter jogging.
78 Decanter