Siemens SINAMICS G120 CU250S-2 Series Administrator guide

CU250S-2 Control Units
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SINAMICS
SINAMICS G120
CU250S-2 Control Units
Compact Operating Instructions
05/2014
A5E32899990B AB
Fundamental safety
instructions
1
Scope of delivery
2
Installing
3
Commissioning
4
More information
5
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Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E32899990B AB
Ⓟ
07/2014 Subject to change
Copyright © Siemens AG 2014.
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Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by
personnel qualified
for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

CU250S-2 Control Units
Compact Operating Instructions, 05/2014, A5E32899990B AB 3
Table of contents
1 Fundamental safety instructions.............................................................................................................. 4
1.1 General safety instructions ............................................................................................................4
1.2 Industrial security ...........................................................................................................................5
2 Scope of delivery .................................................................................................................................... 6
3 Installing ................................................................................................................................................. 7
3.1 Snapping the Control Unit onto the Power Module........................................................................7
3.2 Overview of the interfaces .............................................................................................................8
3.3 Terminal blocks ............................................................................................................................10
3.4 Operator panels ...........................................................................................................................14
4 Commissioning ..................................................................................................................................... 15
4.1 Commissioning with STARTER ...................................................................................................15
4.2 Connecting the inverter to the fieldbus ........................................................................................20
4.3 Frequently required parameters...................................................................................................22
5 More information................................................................................................................................... 25
5.1 Manuals for your inverter .............................................................................................................25
5.2 Product support............................................................................................................................26
This manual describes how you install a SINAMICS G120 converter with CU250S-2 Control
Unit and commission it.
What is the meaning of the symbols in the manual?
An operating instruction starts here.
This concludes the operating instru
ction.

CU250S-2 Control Units
4 Compact Operating Instructions, 05/2014, A5E32899990B AB
1
Fundamental safety instructions
1.1
General safety instructions
WARNING
Risk of death if the safety instructions and remaining risks are not carefully observed
If the safety instructions and residual risks are not observed in the associated hardware
documentation, accidents involving severe injuries or death can occur.
•Observe the safety instructions given in the hardware documentation.
•Consider the residual risks for the risk evaluation.
WARNING
Danger to life or malfunctions of the machine as a result of incorrect or changed
parameterization
As a result of incorrect or changed parameterization, machines can malfunction, which in
turn can lead to injuries or death.
•Protect the parameterization (parameter assignments) against unauthorized access.
•Respond to possible malfunctions by applying suitable measures (e.g. EMERGENCY
STOP or EMERGENCY OFF).

Fundamental safety instructions
1.2 Industrial security
CU250S-2 Control Units
Compact Operating Instructions, 05/2014, A5E32899990B AB 5
1.2
Industrial security
Note
Industrial security
Siemens provides products and solutions with
industrial security functions that support the
secure operation of plants, solutions, machines, equipment and/or networks. They are
important components in a holistic industrial security concept. With this in mind, Siemens’
products and solutions undergo continuous development. Siemens recommends strongly that
you regularly check for product updates.
For the secure operation of Siemens products and solutions, it is necessary to take suitable
preventive action (e.g. cell protection concept) and integrate eac
h component into a holistic,
state
-of-the-art industrial security concept. Third-party products that may be in use should
also be considered. For more information about industrial security, visit Hotspot
-Text
(
http://www.siemens.com/industrialsecurity).
To stay informed about product updates as they occur, sign up for a product
-specific
newsletter. For more information, visit Hotspot
-Text (http://support.automation.siemens.com
).
WARNING
Danger as a result of unsafe operating states resulting from software manipulation
Software manipulation (e.g. by viruses, Trojan horses, malware, worms) can cause unsafe
operating states to develop in your installation which can result in death, severe injuries
and/or material damage.
•Keep the software up to date.
You will find relevant information and newsletters at this address
(http://support.automation.siemens.com).
•Incorporate the automation and drive components into a holistic, state-of-the-art
industrial security concept for the installation or machine.
You will find further information at this address
(http://www.siemens.com/industrialsecurity).
•Make sure that you include all installed products into the holistic industrial security
concept.

CU250S-2 Control Units
6 Compact Operating Instructions, 05/2014, A5E32899990B AB
2
Scope of delivery
Scope of delivery
The delivery comprises at least the following components:
●A CU250S-2 Control Unit ready for operation with installed firmware.
Options for upgrading and downgrading the firmware can be found on the Internet:
Firmware (http://support.automation.siemens.com/WW/news/en/67364620).
The fieldbus interface of the Control Unit depends on the order number.
The order number, the designation and the version of the hardware (e.g. 02)
and firmware (e.g. 4.6) can be found on the rating plate
①
of the Control Unit.
Designation
Order number
Fieldbus
CU250S-2 6SL3246-0BA22-1BA0 USS, Modbus RTU
CU250S-2 DP
6SL3246-0BA22-1PA0
PROFIBUS
CU250S-2 PN
6SL3246-0BA22-1FA0
PROFINET, EtherNet/IP
CU250S-2 CAN 6SL3246-0BA22-1CA0 CANopen
●Compact Operating Instructions in German and English
●The inverter contains open-source software (OSS). The OSS license terms are saved in
the inverter.
Transferring license terms of the OSS code to a PC
Procedure
To transfer the OSS license terms from the inverter to a PC, proceed as follows:
1. Switch off the inverter power supply.
2. Insert an empty memory card into the card slot of the inverter. Also see Section:Overview
of the interfaces (Page 8)
3. Switch on the inverter power supply.
4. When you have switched on the power supply, wait 30 seconds.
During this time, the inverter writes the "Read_OSS.ZIP" file onto the memory card.
5. Switch off the inverter power supply.
6. Remove the card from the inverter.
7. Use a card reader and load the file to a PC.
You have then transferred the OSS license terms from the inverter to a PC.

CU250S-2 Control Units
Compact Operating Instructions, 05/2014, A5E32899990B AB 7
Installing
3
3.1
Snapping the Control Unit onto the Power Module
Installing the Control Unit on an IP20 Power Module
Procedure
Proceed as follows to connect Power
Modules and Control Units:
1.
Locate the lugs at the rear of the Control
Unit in the matching recesses of the
Power Module.
2.
Mount the Control Unit onto the Power
Module so that it audibly snaps into place.
The Power Module and the Control Unit are now connected with one another.
To remove the Control Unit, press on the release button on the Power Module and withdraw
the Control Unit.
Permissible Power Modules
You may operate the Control Unit with the following Power Modules:
●PM240
●PM240-2
●PM250
●PM260
●PM340 1AC

Installing
3.2 Overview of the interfaces
CU250S-2 Control Units
8Compact Operating Instructions, 05/2014, A5E32899990B AB
3.2
Overview of the interfaces
To access the interfaces at the front of the Control
Unit, you must unplug the Operator Panel (if one is
being used) and open the front doors.
①
Terminal strips
②
Fieldbus interface
Selecting the fieldbus address:
•
PROFIBUS
•
USS
•
Modbus RTU
•
CanOpen
③
Status LED
④
USB interface for connection to
a PC
⑤
No function. Keep the switch in the "Vector"
position.
⑥
Switch for analog inputs
I
0/4 mA … 20 mA
U
-
10/0 V … 10 V
⑦
Connection to the operator panel
⑧
Memory card slot

Installing
3.2 Overview of the interfaces
CU250S-2 Control Units
Compact Operating Instructions, 05/2014, A5E32899990B AB 9
Interfaces at the lower side of the Control Unit
Table 3- 1 Permissible encoders on the DRIVE-CLiQ interface X100
DRIVE-CLiQ
encoder
Resolver
HTL
encoder
TTL
encoder
SSI
encoder
Endat 2.1
sin/cos
encoder
Direct connection
✓
---
---
---
---
---
---
Connection via Sensor Module
SMC10, SMC20, SMC30, SME20
or SME25
--- ✓✓✓✓✓✓
The permissible combinations of encoders for speed control and position control are listed in
the "Basic Positioner" Function Manual, see also: Manuals for the Control Unit
(http://support.automation.siemens.com/WW/view/en/30563628/133300).

Installing
3.3 Terminal blocks
CU250S-2 Control Units
10 Compact Operating Instructions, 05/2014, A5E32899990B AB
3.3
Terminal blocks
Terminal strips behind the upper front door
Different reference potentials:
The terminals labelled "GND" are connected internally.
"GND" and "GND IN" are not connected internally.
Figure 3-1 Interconnection example of the digital inputs with external 24 V power supply
Interconnecting the analog inputs (terminals 3, 4 and 10, 11)
For the analog inputs, you may use the internal 10 V supply (example: terminals 1 … 4, 13)
or an external supply (example: terminals 10, 11).
If you use the internal 10 V supply, you must connect AI 0- or AI 1- to GND.

Installing
3.3 Terminal blocks
CU250S-2 Control Units
Compact Operating Instructions, 05/2014, A5E32899990B AB 11
Optional 24 V supply (terminals 31, 32)
Connection of the optional 24 V supply has the following advantages:
●The Control Unit remains in operation after disconnection of the Power Module from the
line supply. The Control Unit thus maintains the fieldbus communication, for example.
●You can use terminals 51 … 54 as digital outputs.
Use a power supply that provides an output voltage in accordance with SELV (Safety Extra
Low Voltage) or PELV (Protective Extra Low Voltage).
If you use a common external power supply for terminals 31, 32 and the digital inputs, you
must connect GND to GND IN.
Terminal strips behind the lower front door
Different reference potentials:
The reference potentials of the digital inputs are not connected internally to each other or to GND.
Figure 3-2 Interconnection example of the digital inputs with external 24 V power supplies
Interconnecting the reference potential of the digital inputs
Table 3- 2 Supply options for the digital inputs
Supply
Reference potential interconnection
You are using an external 24 V supply Connect the reference potential of the external 24 V supply
to the reference potential of the appropriate digital input.
You are using the internal 24 V supply
at terminal 9
Connect the appropriate reference potential of the digital
input to GND.

Installing
3.3 Terminal blocks
CU250S-2 Control Units
12 Compact Operating Instructions, 05/2014, A5E32899990B AB
Factory setting of the terminal strips
The factory setting of the terminals depends on the Control Unit.
Control Units with USS or CANopen interface
The fieldbus interface is not active.
Figure 3-3 Factory setting of the CU250S-2 and CU250S-2 CAN Control Units

Installing
3.3 Terminal blocks
CU250S-2 Control Units
Compact Operating Instructions, 05/2014, A5E32899990B AB 13
Control Units with PROFIBUS or PROFINET interface
The function of the fieldbus interface depends on DI 3.
Figure 3-4 Factory setting of the CU250S-2 DP and CU250S-2 PN Control Units

Installing
3.4 Operator panels
CU250S-2 Control Units
14 Compact Operating Instructions, 05/2014, A5E32899990B AB
Changing the function of the terminals
The function of the terminals marked in color in the two figures above, can be set.
In order that you do not have to successively change terminal for terminal, several terminals
can be jointly set using default settings ("p0015 Macro drive unit").
The factory settings of the terminals for USS/CANopen and PROFIBUS/PROFINET
described above correspond to the following default settings:
●p0015 = 12 (setting in STARTER: "Standard I/O with analog setpoint")
●p0015 = 7 (setting in STARTER: "Fieldbus with data set switchover")
Further default settings can be found in the Operating Instructions, see also: Manuals for the
Control Unit (http://support.automation.siemens.com/WW/view/en/30563628/133300).
Wiring the terminal strip in compliance with EMC
1. If you use shielded cables, then you must connect the shield to the mounting plate of the
control cabinet or with the shield support of the inverter through a good electrical
connection and a large surface area.
See also: EMC installation guideline
(http://support.automation.siemens.com/WW/view/en/60612658)
2. Use the shield connection plate (order number 6SL3264-1EA00-0LA0) of the Control Unit
as strain relief.
3.4
Operator panels
The Intelligent Operator Panel (IOP) is available for snapping on to the Control
Unit or as handheld with a connection cable to the Control Unit. The graphics
-
capable plain text
display of the IOP enables intuitive operation and diagnostics
of the inverter.
See also: Compatibility of the IOP and Control Units
(http://support.automation.siemens.com/WW/view/en/67273266)
The BOP
-2 is an operator panel for snapping on to the Control Unit. The BOP-
2
has a two
-line display for operation and diagnostics of the inverter.
Further information can be found in the Operating Instructions of the BOP-2 and the IOP:
Operator Panels (http://support.automation.siemens.com/WW/view/en/30563514/133300).

CU250S-2 Control Units
Compact Operating Instructions, 05/2014, A5E32899990B AB 15
Commissioning
4
Requirements for commissioning
Use one of the PC tools STARTER or Startdrive to commission
the inverter.
You can access the inverter with STARTER or Startdrive either
via a USB connection or via the fieldbus.
System requirements and download:
•
STARTER
(http://support.automation.siemens.com/WW/view/en/26233
208)
•
Startdrive
(http://support.automation.siemens.com/WW/view/en/88851
265)
Help for the operation and for the functions of the commissioning tools:
●STARTER videos (http://www.automation.siemens.com/mcms/mc-drives/en/low-voltage-
inverter/sinamics-g120/videos/Pages/videos.aspx)
●Startdrive tutorial (http://support.automation.siemens.com/WW/view/en/73598459)
Commissioning with STARTER is described in the following.
4.1
Commissioning with STARTER
Creating a STARTER project
Procedure
In order to create a new project, proceed as follows:
1. In the STARTER menu, select "Project" → "New…".
2. Specify a name of your choice for the project.
You have created a new STARTER project.

Commissioning
4.1 Commissioning with STARTER
CU250S-2 Control Units
16 Compact Operating Instructions, 05/2014, A5E32899990B AB
Transferring inverters connected via USB to the project
Procedure
Proceed as follows to transfer an inverter connected via USB to your project:
1. Switch on the inverter power supply.
2. First insert a USB cable into your PC and then into the inverter.
3. The PC operating system installs the USB driver when you are connecting the inverter
and PC together for the first time.
–Windows 7 installs the driver automatically.
–For Windows XP you must acknowledge several system messages.
4. Start the STARTER commissioning software.
5. In STARTER, press the ("Accessible nodes") button.
6. When the USB interface is appropriately set, then the "Accessible nodes" screen form
shows the inverters that can be accessed.
If you have not correctly set the USB interface, then the following "No additional nodes
found" message is displayed. In this case, follow the description below.
7. Select the inverter ☑.
8. Press the "Accept" button.
You have transferred an inverter accessible via the USB interface into your project.

Commissioning
4.1 Commissioning with STARTER
CU250S-2 Control Units
Compact Operating Instructions, 05/2014, A5E32899990B AB 17
Setting the USB interface
Procedure
Proceed as follows to set the USB interface in STARTER:
1. In this case set the "Access point" to "DEVICE (STARTER, Scout)" and the "PG/PC
interface" to "S7USB".
2. Press the "Update" button.
You have set the USB interface.
STARTER now shows the inverters connected via USB.
Starting the configuration
Procedure
To start the configuration, proceed as follows:
1. In STARTER select the drive you wish to commission.
2. Start the wizard for the device configuration:
You have started the configuration.

Commissioning
4.1 Commissioning with STARTER
CU250S-2 Control Units
18 Compact Operating Instructions, 05/2014, A5E32899990B AB
Performing the configuration
Follow the steps of the configuration wizard and enter the data of
your application.
Loading the configured data into the drive
Procedure
Proceed as follows to load the configured data into the drive:
1. Select your project and go online: .
2. STARTER compares your configuration with the real inverter. STARTER signals any
differences in the "Online/offline comparison".
Acknowledge the message by pressing the "Load HW configuration to PG" button.
3. Open "Drive Navigator".
4. Select the "Commissioning" button.
5. Click on "Load data to the drive".
6. ☑In the screen form, select "After loading copy RAM to ROM".
7. Load your configuration into the inverter.
8. Close the "Commissioning" screen form.
You have loaded your configuration into the drive and therefore performed the basic
commissioning.
Identifying motor data
Requirements
●In the basic commissioning, you have selected the motor identification (MOT ID). In this
case, after the basic commissioning has been completed, the inverter issues the alarm
A07991.
●The motor has cooled down to the ambient temperature.
If the motor is too hot, the motor data identification will provide incorrect values and the
vector control will become unstable.

Commissioning
4.1 Commissioning with STARTER
CU250S-2 Control Units
Compact Operating Instructions, 05/2014, A5E32899990B AB 19
DANGER
Risk of injury or material damage as a result of machine movements when switching on the
motor
Switching on the motor for identification purposes may result in hazardous machine
movements.
Secure dangerous machine parts before starting motor data identification:
•Before switching on, check that no parts are loose on the machine or can be spun out.
•Before switching on, ensure that nobody is working on the machine or located within its
working area.
•Secure the machine's work area against unintended access.
•Lower hanging/suspended loads to the floor.
Procedure
To initiate motor data identification and optimization
of the motor control, proceed as follows:
1.
Open by double-clicking on the control panel in
STARTER.
2.
Assume master control for the inverter.
3.
Set the "Enable signals"
4.
Switch on the motor.
The inverter starts the motor data identification.
This measurement can take several minutes.
After the measurement, the inverter switches off
the motor.
5.
Relinquish the master control
after the motor data
identification.
6.
Click the Save (RAM to ROM) button.
You have now completed motor data identification.
Self-optimization of the closed-loop control
If you have also selected a rotating measurement with self-optimization of the vector control
in addition to the motor data identification, then you must switch on the motor again as
described above and wait for the optimization run to be completed.

Commissioning
4.2 Connecting the inverter to the fieldbus
CU250S-2 Control Units
20 Compact Operating Instructions, 05/2014, A5E32899990B AB
4.2
Connecting the inverter to the fieldbus
Where can I find instructions for the fieldbus connection of the inverter?
You can find instructions for the fieldbus connection on the Internet:
●Application examples (http://support.automation.siemens.com/WW/view/en/60733299)
●Operating Instructions, "Inverter with CU250S-2 Control Units": Manuals for the Control
Unit (http://support.automation.siemens.com/WW/view/en/30563628/133300)
●Function Manual, "Fieldbusses": Manuals for the Control Unit
(http://support.automation.siemens.com/WW/view/en/30563628/133300)
Example telegram
Telegram 1
Abbreviation
Explanation
STW1
Control word 1
ZSW1
Status word 1
PZD01/02
Process data 16-bit
NSOLL_A
Speed setpoint 16-bit
NIST_A Actual speed value 16-bit
The inverter telegrams without configured basic positioner are described in the Operating
Instructions and in the "Communications" Function Manual: Manuals for the Control Unit
(http://support.automation.siemens.com/WW/view/en/30563628/133300)
The telegrams with configured basic positioner are described in the "Basic Positioner and
Technology" Function Manual: Manuals for the Control Unit
(http://support.automation.siemens.com/WW/view/en/30563628/133300).
Control word 1 (STW1)
Bit
Meaning
Explanation
0 0 = OFF1 The motor brakes with the ramp-down time p1121 of the ramp-function generator.
The inverter switches off the motor at standstill.
0 → 1 = ON The inverter goes into the "ready" state. If, in addition bit 3 = 1, then the inverter
switches on the motor.
1
0 = OFF2
Switch off the motor immediately, the motor then coasts down to a standstill.
1 = No OFF2
The motor can be switched on (ON command).
2 0 = Quick stop (OFF3) Quick stop: The motor brakes with the OFF3 ramp-down time p1135 down to
standstill.
1 = No quick stop (OFF3) The motor can be switched on (ON command).
3
0 = Inhibit operation
Switch off the motor immediately, the motor then coasts down to a standstill.
1 = Enable operation The motor can be switched on (ON command).
4
0 = Disable RFG
The inverter immediately sets its ramp-function generator output to 0.
1 = Do not disable RFG
The ramp-function generator can be enabled.