Siemens SINAMICS CU240S DP-F Operating Instructions Manual page 34

Installing/Mounting
4.2 Connecting a CU240S via Terminals
AI0 and AI1 used as current inputs
To use it as current inputs the following must be performed:
1. DIP switch settings:
2. Paramter settings
Parameter
P0003 = 3
P1000[0] = 2
Switch over from voltage to current input
P0756[0] = 3
Scaling the analog inputs
P0757[0] = 4
P0758[0] = 0
P0761[0] = 4
The figure shows the control wiring to use the
analog inputs as current inputs for both, frequency
setpoint and an additional setpoint, for example
from a PLC.
34
Set the analog input dip switches to ON-position
2 refers to AI1)
Example, using analog input as monitored current input
Description
User access level*
3: Expert: For expert use only
Selection of frequency setpoint*
2: Analog setpoint (Default setting)
Type of AI0 (P0756[1] for AI1)
Sets analog input 0 (AI0) to "Unipolar current input with monitoring (0 to 20 mA)"
Value x1 of AI0 scaling (P0757[1] = for AI1)
Sets analog input 0 (AI0) to a minimum of 4 mA.
Value y1 of AI0 scaling (P0758 [1] = for AI1)
Sets the y scaling of the analog input at 4mA to 0 %.
Width of AI0 dead band (P0761 [1] = for AI1)
Sets the dead band width of analog input 0 (AI0).
(DIP switch 1 refers to AI0, DIP switch
Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD
Control Units CU240S