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3.1.2.1 DIGITAL SPEED REFERENCE (JOG)
The value programmed in parameter P211 can be used as digital speed reference either by
activating the logic function “Enable Jog” I.05 assigned to an input (default input L.I.5) or with the
connection P212=1. The resolution is 1/10000 of the maximum working speed.
3.1.2.2 DIGITAL POTENTIOMETER SPEED REFERENCE
A function that makes it possible to obtain a terminal board adjustable speed reference through the
use of two logic inputs to which are assigned the input functions digital potentiometer up I09”
(ID_UP_POTD) and “Digital potentiometer down I10” (ID_DN_POTD) .
The reference is obtained by increasing or decreasing an internal counter with the ID_UP_POTD and
ID_DN_POTD functions respectively.
The speed of increase or decrease set by parameter P217 (acceleration time of the digital
potentiometer) which sets how many seconds the reference takes to go from 0 to 100%, keeping the
ID_UP_POTD active (this times is the same as to go from 100.0% to 0.0% by holding ID_DN_POTD
active). If ID_UP_POTD are ID_DN_POTD are activated at the same time the reference remains still.
The movement of the reference is only enabled when the converter is in RUN.
The functioning is summarised in the following table :
Converter running
on-line
ID_UP_POTD
ID_DN_
POTD
DP.LV C20 REF
H H L x x increases
H L H x x decreases
H L L x x stopped
H H H x x stopped
L x x x x stopped
L -> H x x L L P8
L -> H x x H L REF4 L.v.
L -> H x x L H REF4 L.v.
L -> H x x H H REF4 L.v.
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