ABB ACS 800 Series, Application Manual

Page: 14 / 44

Function blocks
14
Parameter value as an integer input
How the block handles the input
The block reads the selected value in as an integer.
Note: The parameter selected as an input should be a real or integer value. If the
value is not in integer format by default, the block converts it. The integer (fieldbus)
scaling for each parameter is given in the
Firmware Manual.
How to select the input
• Scroll to the input selection parameter of the block and switch to edit mode
(Enter).
• Set the values of the inversion, group, index and bit fields according to the
address from which the input value is to be read (double arrow and arrow keys).
The figure below shows the panel display when the input I1 selection parameter is in
edit mode. The value is inverted if there is a minus ( - ) sign in the inversion field.
The bit selection field is not effective for an integer or string type input.
Example: Analogue input AI1 is 5.8 V in a drive equipped with the ACS800 Standard
Application Program. How is the signal connected to the MAX block in the Adaptive
Program? What is the value at the block input?
AI1 is connected to the block as follows:
• Scroll to the input I1 selection parameter and shift to edit mode (Enter).
• Set the value in the group field to 1 and the value in the index field to 18. (Value of
AI1 is internally stored as actual signal 1.18.)
The value at the input of the block is 5800, since the integer scaling of actual signal
1.18 is: 0.001 V = 1 (given in the
Firmware Manual ).
1 L -> 0 rpm 0
84 ADAPTIVE PROGRAM
06 INPUT1
[±001.018.00]
Inversion field
Group field
Index field
Bit field
Display of the panel