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CU320?2 PN Control Unit

The communication, open-loop and closed-loop control functions for one or more Motor Modules and the Line Module are executed in a CU320?2 Control Unit. The CU320?2 Control Unit is essentially designed for multi-axis operation.

CU320?2 DP Control Unit with BOP20 Basic Operator Panel

CompactFlash card for CU320?2 Control Units

The CompactFlash card contains the firmware and parameter settings. The CompactFlash card is plugged into the appropriate slot on the CU320?2 Control Unit.

A CU320?2 Control Unit can perform the communication, open-loop and closed-loop control functions for several Motor Modules. The computing capacity required increases in proportion to the number of connected Motor Modules and system components and in relation to the dynamic response required. For the CU320?2 Control Unit, the performance expansion is necessary for machines with 4 axes or more. The utilization of the CU320?2 Control Unit can be calculated with the SIZER for Siemens Drives engineering tool.

In addition to the firmware, the CompactFlash Card also contains licensing codes which are required to enable firmware options.

In addition to the Article No., the following firmware options can currently be ordered with or without performance expansion:

• Safety Integrated Extended Functions, order codes per axis F01 to F06 (see section Safety Integrated)
• High output frequency ¹⁾, order code J01
• DCB Extension, order code U01(further information about DCB Extension and license upgrades can be found under Drive Control Chart (DCC) in the section Engineering tools)

After the appropriate license has been purchased via the WEB License Manager available on the Internet, firmware options can also be subsequently enabled.

Further information is available on the Internet at 
http://www.siemens.com/automation/license

¹⁾ For further information, see https://support.industry.siemens.com/cs/document/104020669

CU320?2 Control Units feature the following interfaces as standard:

• 4 DRIVE-CLiQ sockets for communication with other DRIVE-CLiQ devices, e.g. Motor Modules, Line Modules, Sensor Modules, Terminal Modules
• CU320?2 PN: 1 PROFINET interface with 2 ports (RJ45 sockets) with PROFIdrive V4 profile
• CU320?2 DP: 1 PROFIBUS interface with PROFIdrive V4 profile
• 12 parameterizable digital inputs (floating)
• 8 parameterizable bidirectional digital inputs/outputs (non-floating)
• 1 serial RS232 interface
• 1 interface for the BOP20 Basic Operator Panel
• 1 slot for the CompactFlash card on which firmware and parameters are stored
• 1 slot for mounting an option module (e.g. TB30 Terminal Board)
• CU320?2 DP: 2 rotary coding switches for manually setting the PROFIBUS address
• 1 Ethernet interface for commissioning and diagnostics
• 3 test sockets and one reference ground for commissioning support
• 1 connection for the electronics power supply via the 24 V DC supply connector
• 1 PE/protective conductor connection
• 1 ground connection

A shield connection for the signal cable shield of an option module is located on the CU320?2 Control Unit.

The available slot is used to optionally expand the interfaces, for example, to include additional terminals or for communication purposes.

The status of the CU320?2 Control Unit is indicated via multi-color LEDs.

As the firmware and parameter settings are stored on a plug-in CompactFlash card, the Control Unit can be changed without the need for software tools.

The CU320?2 Control Unit can be mounted on the side of the Line Module in booksize format via brackets integrated in a Line Module. The CU320?2 Control Unit can also be fixed to the wall of the control cabinet using the integrated fixing lugs. As the CU320?2 Control Unit is not as deep as the Line Modules, suitable spacers are available to increase the depth of the CU320?2 Control Unit to 270 mm (10.6 in).

DRIVE?CLiQ components such as Motor Modules and Active Line Modules can be connected to a CU320?2 Control Unit. The number of modules depends on the performance required, including duty type and additional functions.

The BOP20 Basic Operator Panel can also be snapped onto the CU320?2 Control Unit during operation to perform diagnostics.

The CU320?2 Control Unit and other connected components are commissioned and diagnosed with the STARTER commissioning tool.

A CompactFlash card with firmware version V4.4 or higher is a mandatory requirement for operation of the CU320?2 PN Control Unit.
A CompactFlash card with firmware version V4.3 or higher is a mandatory requirement for operation of the CU320?2 DP Control Unit.

Connection example of a CU320?2 Control Unit