
11.3.6
Motor potentiometer setpoint source
The "Motor potentiometer" function can be used as an alternative setpoint control that is
controlled via two functions: "Motor potentiometer up" and "Motor potentiometer down".
The "Setpoint = Motor potentiometer" function enables a setpoint change-over to the motor
potentiometer.
Preconditions
A setpoint change-over to the motor potentiometer is only effected if
•
no setpoint source with a higher priority has been selected.
4
Priority of the setpoint sour-
ces
^
193
•
no jog operation is active ("Foward jog (CW)" and "Backward jog (CCW)" functions).
Details
If the motor potentiometer is active as setpoint source, the setpoint generated by this func-
tion ("MOP value") can be changed according to the truth table via the triggers assigned to
the two "Motor potentiometer up" and "Motor potentiometer down" functions:
Motor potentiometer
up
Motor potentiometer
down
Response of the function
FALSE
FALSE
Last MOP value is maintained.
TRUE
FALSE
MOP value is increased to a maximum of the upper range limit with acceleration time 2.
FALSE
TRUE
MOP value is decreased to a maximum of the lower range limit with deceleration time 2.
TRUE
TRUE
Last MOP value is maintained.
Starting performance
•
In the default setting, the last MOP value is used as initial value. As an alternative, an adjust-
able initial value or the minimum value can be used for starting. The starting performance
can be selected in
0x4003 (PAR 413)
.
•
The last MOP value is still provided after switching the mains voltage off and on again.
Range limits, acceleration times, and deceleration times
Parameter
Speed mode
Process controller mode
Lower range limit
Minimum frequency
0x2915 (PAR 210)
Setpoint limits (process controller): Minimum
setpoint
0x404E:001 (PAR 605/001)
Upper range limit
Maximum frequency
0x2916 (PAR 211)
Setpoint limits (process controller): Maximum
setpoint
0x404E:002 (PAR 605/002)
Acceleration time
Acceleration time 2
0x2919 (PAR 222)
Setpoint ramp (process controller)
0x404B (PAR 604)
Deceleration time
Deceleration time 2
0x291A (PAR 223)
Setpoint ramp (process controller)
0x404B (PAR 604)
Parameter
Name / value range / [default setting]
Info
0x2631:023
(PAR 400/023)
Function assignment: Motor potentiometer up
(Function list: MOP up)
•
For possible settings see description for
0x2631:001 (PAR 400/001)
.
^
188
Assignment of a trigger for the "Motor potentiometer up" function.
Trigger = TRUE: setpoint generated by the "Motor potentiometer" func-
tion ("MOP value") is maximally increased to the upper range limit with
acceleration time 2.
Trigger = FALSE: last MOP value is maintained.
Notes:
•
If the "Motor potentiometer up" and "Motor potentiometer down"
functions are active at the same time, the last MOP value is main-
tained.
•
Acceleration time 2 can be set in
0x2919 (PAR 222)
.
00 Not connected
No trigger assigned (trigger is constantly FALSE).
Flexible I/O configuration
Setpoint change-over
Motor potentiometer setpoint source
198
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