Download Siemens CU240S PN Operating instructions

Installing/Mounting
4.2 Connecting a CU240S via Terminals
Frequency setpoint and an additional setpoint via terminals
AI0 and AI1 used as current inputs
This type of control wiring allows a main frequency setpoint and an additional setpoint to be
established, for example from a PLC.
The following figure illustrates the wiring that is necessary to accomplish this functionality.
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P$
DIP switch and parameter settings
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The general I/O DIP switches 1 and 2 are used to configure the analog inputs (AI).
For using AI0 and AI1 as voltage inputs set DIP switches 1 and 2 to OFF position.
For failure-free operation, the parameter P0756 must be set accordingly.
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See also
Setting Frequency Setpoints via the DIP Switches (Page 37)
Control Units CU240S
Operating Instructions, 06/2007 - SW 3.0, A5E00766042B AB
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