SINUS PENTA
PROGRAMMING GUIDE
34
/
486
EXAMPLE:
The speed of a motor is to be controlled via a 0
÷
5 V analog input. Speed range is 0
÷
1500 rpm; two digital inputs are
available to increase three speed values with steps of 100rpm.
Setting the min. and max. speed:
The parameters for the motor min./max. speed are
C028
= 0 rpm,
C029
= 1800 rpm.
Setting the analog reference:
Default setting: the analog reference is sent from REF input (
C143
= REF).
The speed range for the analog input must be 0
÷
1500 rpm.
Default setting in the INPUTS FOR REFERENCES MENU for REF analog input:
P050
= 3: 0 –10 V
Type of reference for REF input
P051
= 0.0 V
Min. value for REF input
P052
= 10.0 V
Max. value for REF input
P052
is the voltage value for REF input for a speed reference of 1800rpm (
C029
)
For a speed reference of 1500rpm with 5 V,
P052
is to be set as follows:
(Max. speed REF): (5 V) = (
C029
): (Vx)
Vx = 5 V *1800rpm /1500rpm = 6 V
If
P052
= 6V, a speed reference of 1500rpm is set for REF with 5V.
Setting the reference from digital inputs:
Default setting: two digital inputs for multispeed values.
Digital Inputs Menu:
C155
= MDI4;
C156
= MDI5
Depending on the status of digital inputs MDI4 and MDI5:
MDI4
MDI5
Multispeed
0
0
0
1
0
1
0
1
2
1
1
3
In the MULTISPEED MENU, set the speed steps as follows:
P080
= 1: Sum Speed
P081
= 100rpm Multispeed 1
P083
= 200rpm Multispeed 2
P085
= 300rpm Multispeed 3
P080
→
Multispeed function: the selected multispeed is summed up to the reference for the analog input.
P081
,
P083
,
P085
are the steps depending on the selected multispeed for digital inputs MDI4, MDI5.
