Motor Potentiometer Macro - ABB ACS560 Firmware Manual

Motor potentiometer macro

The motor potentiometer macro can be used to adjust the speed of the motor with
two-push buttons or with PLCs that change the speed of the motor using two digital
signals.
The source for the digital signals, used to increase the values, can be selected by
parameters 22.73 Motor potentiometer up source
down source.
When enabled by 22.71 Motor potentiometer
assumes the value set by
mode selected in 22.71, the motor potentiometer value is either retained or reset over
a power cycle.
The time to increase the speed from the minimum
value) to the maximum
parameter 22.78 Motor potentiometer ramp
The time to decrease the speed from the maximum
value) value to the minimum
in the parameter 22.79 Motor potentiometer ramp
If the up and down signals are simultaneously on, the motor potentiometer value does
not change.
The output of the function is shown by
directly be set as the reference source in the main selector parameters, or used as an
input by other source selector parameters, both in scalar and vector control.
The following example shows the behavior of the motor potentiometer value.
1
22.73
0
1
22.74
0
22.77
22.80
0
22.76
Parameters 22.73 Motor potentiometer up source
down source control speed or frequency from zero to maximum speed or frequency.
22.72 Motor potentiometer initial
(22.77 Motor potentiometer max
(22.76 Motor potentiometer min
22.80 Motor potentiometer ref
and 22.74 Motor potentiometer
function, the motor potentiometer
value. Depending on the
(22.76 Motor potentiometer min
value) is defined in the
up.
(22.77 Motor potentiometer max
value) value is defined
down.
and 22.74 Motor potentiometer
Control macros 111
act, which can