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:
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.
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