Control Units CU240S 
Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD 
5 
Table of contents 
1  Introduction................................................................................................................................................ 9 
1.1  Documents for the Inverter ............................................................................................................9 
1.2  Description of Document Classes................................................................................................10 
2  Safety notes............................................................................................................................................. 11 
3  Description............................................................................................................................................... 15 
3.1  Accessories for the CU240S........................................................................................................16 
3.2  Features and Functions of the CU240S ......................................................................................17 
3.3  Layout and Block diagram ...........................................................................................................19 
3.4  Interfaces of the Control Units .....................................................................................................23 
3.5  Factory Settings of the Control Unit.............................................................................................26 
4  Installing/Mounting................................................................................................................................... 29 
4.1  Fitting the CU to the PM...............................................................................................................29 
4.2  Connecting a CU240S via Terminals...........................................................................................31 
4.2.1  Frequency setpoint via terminals .................................................................................................33 
4.3  Connecting a CU240S via USS on RS485 ..................................................................................35 
4.4  Connecting a CU240S DP or CU240S DP-F via PROFIBUS DP................................................37 
4.4.1  Connecting the PROFIBUS DP ...................................................................................................37 
4.4.2  Screening the bus cable and EMC precautions...........................................................................40 
4.5  Connecting a CU240S PN via PROFINET ..................................................................................42 
4.6  Installation Check List ..................................................................................................................44 
5  Commissioning ........................................................................................................................................ 45 
5.1  Single Commissioning .................................................................................................................47 
5.2  Series Commissioning .................................................................................................................48 
5.2.1  Common Information to Series commissioning ...........................................................................48 
5.2.2  Upload and Download of Parameter Sets ...................................................................................50 
5.3  Common Commissioning Information..........................................................................................53 
5.4  Message F00395 .........................................................................................................................54 
5.5  Commissioning using the BOP ....................................................................................................55 
5.5.1  The Basic Operator Panel (BOP)..........................................................................................
.......55 
5.5.1.1  Function Keys of the BOP............................................................................................................56 
5.5.1.2  Changing Parameters via BOP....................................................................................................57 
5.5.2  Overview Commissioning with the BOP ......................................................................................58 
5.5.3  Basic Commissioning...................................................................................................................59 
5.5.3.1  Quick Commissioning ..................................................................................................................59 
5.5.3.2  Calculating the Motor and Control Data.......................................................................................63 
5.5.3.3  Speed Control Optimization.........................................................................................................65