Siemens SINAMICS G120 User manual

Answers for industry.
SINAMICS
SINAMICS G120
SINAMICS G120C Inverter
Operating Instructions · 01/2011

SINAMICS G120C Inverter
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SINAMICS
SINAMICS G120C
SINAMICS G120C Inverter
Operating Instructions
Edition 01/2011, Firmware 4.4
Original instructions
01/2011, FW 4.4
A5E02999804A AB
Safety notes
1
Introduction
2
Description
3
Installing
4
Commissioning
5
Adapting the terminal strip
6
Configuring the fieldbus
7
Functions
8
Servicing and maintaining
9
Alarms, faults and system
messages
10
Technical data
11
Appendix
A

Legal information
Legal information
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
with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.
CAUTION
without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.
NOTICE
indicates that an unintended result or situation can occur if the corresponding information is not taken into
account.
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 for the specific task, 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 adhered to. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of the 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.
Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E02999804A AB
Ⓟ 03/2011
Copyright © Siemens AG 2011.
Technical data subject to change

SINAMICS G120C Inverter
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB 3
Table of contents
1 Safety notes............................................................................................................................................... 9
2 Introduction.............................................................................................................................................. 13
2.1 About this manual ........................................................................................................................13
2.2 Guide through this manual...........................................................................................................14
2.3 Adapting inverter to application....................................................................................................15
2.3.1 General basics .............................................................................................................................15
2.3.2 Parameter ....................................................................................................................................15
2.4 Frequently required parameters...................................................................................................16
2.5 Extended scope for adaptation ....................................................................................................18
3 Description............................................................................................................................................... 21
3.1 SINAMICS G120C inverter ..........................................................................................................21
3.2 Commissioning tools....................................................................................................................22
3.3 Interfaces .....................................................................................................................................24
4 Installing .................................................................................................................................................. 25
4.1 Procedure for installing the inverter .............................................................................................25
4.2 Mounting the inverter ...................................................................................................................26
4.3 Mounting the line reactor .............................................................................................................29
4.4 Connecting the inverter................................................................................................................31
4.4.1 Power distribution systems ..........................................................................................................31
4.4.2 Connecting the line supply and motor .........................................................................................33
4.4.3 EMC-compliant connection ..........................................................................................................36
4.4.4 Interfaces, connectors, switches, terminal blocks and LEDs of the inverter ...............................39
4.4.5 Terminal strips on the inverter .....................................................................................................40
4.4.6 Selecting the interface assignments ............................................................................................41
4.4.7 Wiring terminal strips ...................................................................................................................46
5 Commissioning ........................................................................................................................................ 47
5.1 Restoring the factory setting ........................................................................................................48
5.2 Preparing commissioning.............................................................................................................49
5.2.1 Collecting motor data ...................................................................................................................50
5.2.2 Inverter factory setting .................................................................................................................51
5.2.3 Defining requirements for the application ....................................................................................52
5.3 Commissioning with factory settings............................................................................................53
5.3.1 Prerequisites for using the factory settings..................................................................................53
5.3.2 Wiring examples for the factory settings......................................................................................54
5.4 Commissioning with Operator Panel BOP-2................................................................................56
5.4.1 Display of the BOP-2 ...................................................................................................................56

Table of contents
SINAMICS G120C Inverter
4 Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB
5.4.2 Menu structure ............................................................................................................................ 57
5.4.3 Freely selecting and changing parameters.................................................................................58
5.4.4 Basic commissioning................................................................................................................... 59
5.4.5 Additional settings ....................................................................................................................... 60
5.5 Commissioning with STARTER .................................................................................................. 61
5.5.1 Overview ..................................................................................................................................... 61
5.5.2 Adapting the USB interface......................................................................................................... 62
5.5.3 Generating a STARTER project.................................................................................................. 63
5.5.4 Go online and perform the basic commissioning........................................................................ 63
5.5.5 Making additional settings........................................................................................................... 67
5.5.6 Trace function for optimizing the drive ........................................................................................ 68
5.6 Data backup and series commissioning ..................................................................................... 71
5.6.1 Backing up and transferring settings using memory card........................................................... 72
5.6.1.1 Saving setting on memory card .................................................................................................. 72
5.6.1.2 Transferring the setting from the memory card........................................................................... 74
5.6.1.3 Safely remove the memory card ................................................................................................. 75
5.6.2 Backing up and transferring settings using STARTER ............................................................... 76
5.6.3 Saving settings and transferring them using an operator panel ................................................. 77
5.6.4 Other ways to back up settings................................................................................................... 77
6 Adapting the terminal strip ....................................................................................................................... 79
6.1 Digital inputs................................................................................................................................ 80
6.2 Fail-safe digital input ................................................................................................................... 82
6.3 Digital outputs ............................................................................................................................. 83
6.4 Analog inputs .............................................................................................................................. 84
6.5 Analog outputs ............................................................................................................................ 87
7 Configuring the fieldbus ........................................................................................................................... 91
7.1 Data exchange via the fieldbus................................................................................................... 91
7.2 Communication via PROFIBUS .................................................................................................. 92
7.2.1 Connect the frequency inverter to PROFIBUS ........................................................................... 92
7.2.2 Configuring communication to the control................................................................................... 92
7.2.3 Setting the address ..................................................................................................................... 92
7.2.4 Basic settings for communication ............................................................................................... 93
7.2.5 Cyclic communication ................................................................................................................. 94
7.2.5.1 Control and status word 1 ........................................................................................................... 95
7.2.5.2 Data structure of the parameter channel .................................................................................... 98
7.2.5.3 Slave-to-slave communication .................................................................................................. 103
7.2.6 Acyclic communication.............................................................................................................. 104
7.2.6.1 Acyclic communication.............................................................................................................. 104
7.2.6.2 Reading and changing parameters via data set 47 .................................................................. 104
7.3 Communication via RS485........................................................................................................ 109
7.3.1 Integrating inverters into a bus system via the RS485 interface............................................... 109
7.3.2 Communication via USS ........................................................................................................... 110
7.3.2.1 Setting the address ................................................................................................................... 110
7.3.2.2 Structure of a USS telegram ..................................................................................................... 110
7.3.2.3 User data range of the USS telegram....................................................................................... 112
7.3.2.4 Data structure of the USS parameter channel.......................................................................... 113

Table of contents
SINAMICS G120C Inverter
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB 5
7.3.2.5 USS read request ......................................................................................................................118
7.3.2.6 USS write job .............................................................................................................................119
7.3.2.7 USS process data channel (PZD)..............................................................................................120
7.3.2.8 Time-out and other errors ..........................................................................................................121
7.3.3 Communication over Modbus RTU............................................................................................123
7.3.3.1 Modbus ......................................................................................................................................123
7.3.3.2 Setting the address ....................................................................................................................124
7.3.3.3 Basic settings for communication ..............................................................................................124
7.3.3.4 Modbus RTU telegram...............................................................................................................125
7.3.3.5 Baud rates and mapping tables .................................................................................................126
7.3.3.6 Write and read access via FC 3 and FC 6.................................................................................129
7.3.3.7 Communication procedure.........................................................................................................131
7.4 Communication via CANopen....................................................................................................133
7.4.1 Configuring communication to the control .................................................................................134
7.4.2 CANopen functionality of the inverter ........................................................................................134
7.4.3 Commissioning CANopen..........................................................................................................135
7.4.3.1 Setting the node ID and baud rate.............................................................................................135
7.4.3.2 Monitoring the communication and response of the inverter.....................................................136
7.4.3.3 SDO services .............................................................................................................................137
7.4.3.4 Access to SINAMICS parameters via SDO ...............................................................................140
7.4.3.5 PDO and PDO services .............................................................................................................142
7.4.3.6 Predefined connection set .........................................................................................................146
7.4.3.7 Free PDO mapping ....................................................................................................................147
7.4.4 Further CANopen functions .......................................................................................................148
7.4.4.1 Network management (NMT service) ........................................................................................148
7.4.5 List of objects .............................................................................................................................151
7.4.5.1 Free objects ...............................................................................................................................158
7.4.5.2 Objects in drive profile DSP402.................................................................................................158
7.4.6 Engineering example .................................................................................................................159
8 Functions............................................................................................................................................... 161
8.1 Overview of the inverter functions..............................................................................................161
8.2 Inverter control ...........................................................................................................................163
8.2.1 Two-wire control: method 1........................................................................................................164
8.2.2 Two-wire control, method 2........................................................................................................165
8.2.3 Two-wire control, method 3........................................................................................................166
8.2.4 Three-wire control, method 1.....................................................................................................167
8.2.5 Three-wire control, method 2.....................................................................................................168
8.2.6 Switching over the inverter control (command data set) ...........................................................169
8.3 Command sources.....................................................................................................................171
8.4 Setpoint sources ........................................................................................................................172
8.4.1 Analog input as setpoint source.................................................................................................172
8.4.2 Motorized potentiometer as setpoint source..............................................................................173
8.4.3 Fixed speed as setpoint source .................................................................................................176
8.4.4 Running the motor in jog mode (JOG function) .........................................................................179
8.4.5 Specifying the motor speed via the fieldbus ..............................................................................180
8.5 Setpoint calculation....................................................................................................................181
8.5.1 Minimum speed and maximum speed .......................................................................................181
8.5.2 Ramp-function generator ...........................................................................................................182

Table of contents
SINAMICS G120C Inverter
6 Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB
8.6 Motor control ............................................................................................................................. 183
8.6.1 V/f control .................................................................................................................................. 185
8.6.1.1 V/f control with linear and square-law characteristic................................................................. 185
8.6.1.2 Additional characteristics for the V/f control.............................................................................. 186
8.6.1.3 Optimizing with a high break loose torque and brief overload.................................................. 187
8.6.2 Vector control ............................................................................................................................ 189
8.6.2.1 Commissioning vector control................................................................................................... 189
8.7 Protection functions................................................................................................................... 190
8.7.1 Inverter temperature monitoring................................................................................................ 190
8.7.2 Motor temperature monitoring using a temperature sensor...................................................... 191
8.7.3 Overcurrent protection .............................................................................................................. 193
8.7.4 Limiting the maximum DC link voltage...................................................................................... 194
8.8 Status messages....................................................................................................................... 195
8.9 Application-specific functions.................................................................................................... 196
8.9.1 Unit changover .......................................................................................................................... 196
8.9.1.1 Unit changeover ........................................................................................................................ 196
8.9.1.2 Changing over the motor standard ........................................................................................... 198
8.9.1.3 Changing over the unit system ................................................................................................. 199
8.9.1.4 Changing over units for the technology controller .................................................................... 200
8.9.1.5 Changing of the units with STARTER....................................................................................... 200
8.9.2 Braking functions of the inverter ............................................................................................... 202
8.9.2.1 Comparison of electrical braking methods................................................................................ 202
8.9.2.2 DC braking ................................................................................................................................ 204
8.9.2.3 Compound braking.................................................................................................................... 208
8.9.2.4 Dynamic braking ....................................................................................................................... 210
8.9.2.5 Motor holding brake .................................................................................................................. 216
8.9.3 Automatic restart and flying restart ........................................................................................... 221
8.9.3.1 Flying restart – switching on while the motor is running ........................................................... 221
8.9.3.2 Automatic switch-on .................................................................................................................. 223
8.9.4 PID technology controller.......................................................................................................... 227
8.10 Fail-safe function Safe Torque Off (STO) ................................................................................. 228
8.10.1 Prerequisite for STO use........................................................................................................... 228
8.10.2 Permitted sensors ..................................................................................................................... 228
8.10.3 Connecting fail-safe digital inputs ............................................................................................. 229
8.10.4 Signal filtering............................................................................................................................ 231
8.10.5 Forced dormant error detection ................................................................................................ 234
8.10.6 Password................................................................................................................................... 234
8.10.7 Commissioning.......................................................................................................................... 235
8.10.7.1 Commissioning tool................................................................................................................... 235
8.10.7.2 Resetting the safety function parameters to the factory setting................................................ 235
8.10.7.3 Defining commissioning method ............................................................................................... 236
8.10.7.4 Setting STO............................................................................................................................... 237
8.10.7.5 Activate settings ........................................................................................................................ 238
8.10.7.6 Multiple assignment of the DI.................................................................................................... 238
8.10.8 Acceptance test......................................................................................................................... 240
8.10.8.1 Prerequisites and authorized persons ...................................................................................... 240
8.10.8.2 Complete acceptance test......................................................................................................... 240
8.10.8.3 Reduced acceptance test.......................................................................................................... 241
8.10.8.4 Documentation .......................................................................................................................... 242
8.10.8.5 Function test.............................................................................................................................. 244

Table of contents
SINAMICS G120C Inverter
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB 7
8.10.8.6 Completing the certificate ..........................................................................................................245
9 Servicing and maintaining...................................................................................................................... 247
9.1 Overview of how to replace an inverter .....................................................................................247
9.2 Steps for replacing the inverter..................................................................................................248
9.3 Replacing the heat sink fan........................................................................................................251
9.4 Replaing the internal fan............................................................................................................253
10 Alarms, faults and system messages..................................................................................................... 255
10.1 Operating states indicated on LEDs ..........................................................................................256
10.2 Alarms........................................................................................................................................258
10.3 Faults .........................................................................................................................................261
10.4 List of alarms and faults .............................................................................................................266
11 Technical data ....................................................................................................................................... 273
11.1 Technical data of inputs and outputs .........................................................................................273
11.2 High Overload and Low Overload..............................................................................................274
11.3 Common technical power data ..................................................................................................275
11.4 Electromagnetic Compatibility....................................................................................................276
11.5 Power-dependent technical data ...............................................................................................279
11.6 Temperature, altitude and voltage derating...............................................................................284
11.7 Current reduction depending on pulse frequency......................................................................285
11.8 Accessories................................................................................................................................286
11.8.1 Line reactor ................................................................................................................................286
11.8.2 Braking resistor ..........................................................................................................................288
11.9 Standards...................................................................................................................................290
A Appendix................................................................................................................................................ 291
A.1 Application examples .................................................................................................................291
A.1.1 Configuring the communication with STEP 7 ............................................................................291
A.1.1.1 Task ...........................................................................................................................................291
A.1.1.2 Required components................................................................................................................291
A.1.1.3 Creating a STEP 7 project .........................................................................................................292
A.1.1.4 Configuring communications to a SIMATIC control...................................................................293
A.1.1.5 Inserting the inverter into the STEP 7 project............................................................................294
A.1.2 STEP 7 programming examples................................................................................................296
A.1.2.1 STEP 7 program example for cyclic communication .................................................................296
A.1.2.2 STEP 7 program example for acyclic communication ...............................................................298
A.1.3 Configuring slave-to-slave communication in STEP 7...............................................................302
A.2 Further information on your inverter ..........................................................................................304
A.2.1 Manuals for your inverter ...........................................................................................................304
A.2.2 Configuring support....................................................................................................................305
A.2.3 Product Support .........................................................................................................................306
Index...................................................................................................................................................... 307

Table of contents
SINAMICS G120C Inverter
8 Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB

SINAMICS G120C Inverter
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB 9
Safety notes 1
It has to be ensured by the machine manufacturer, that the line-side overcurrent protection
equipment interrupts within 5 s (immovable equipment and modules in immovable
equipment) in the case of minimum fault current (current on complete insulation failure to
accessible conductive parts that are not live during operation and maximum current loop
resistance).
DANGER
Risk of electrical shock!
Hazardous voltage is still present for up to 5 minutes after the power supply has been
switched off.
It is not permissible to carry out any installation work before this time has expired!
WARNING
General
This equipment contains dangerous voltages and controls potentially dangerous rotating
mechanical parts.
Protection in case of direct contact by means of SELV / PELV is only permissible in areas
with equipotential bonding and in dry indoor rooms. If these conditions are not fulfilled,
other protective measures against electric shock must be applied e.g. protective insulation.
The inverter must always be grounded. As the earth leakage for this product can be greater
than 3.5 mA a.c., a fixed earth connection is required and the minimum size of the
protective earth conductor shall comply with the local safety regulations for high leakage
current equipment.
Install the inverter on a metal mounting plate. The mounting plate has to be unpainted and
with a good electrical conductivity.
It is strictly prohibited for any mains disconnection to be performed on the motor-side of the
system, if the inverter is in operation and the output current is not zero.
Take particular notice of the general and regional installation and safety regulations
regarding work on dangerous voltage installations (e.g. EN 50178) as well as the relevant
regulations regarding the correct use of tools and personal protective equipment (PPE).
CAUTION
Static discharges on surfaces or interfaces that are not generally accessible (e.g. terminal
or connector pins) can cause malfunctions or defects. Therefore, when working with
inverters or inverter components, ESD protective measures should be observed.

Safety notes
SINAMICS G120C Inverter
10 Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB
CAUTION
Transport and storage
The level of physical shocks and vibration during transport and storage must correspond to
class 2M3 according to EN 60721-3-2. It is important that the equipment is protected from
water (rainfall) and excessive temperatures.
WARNING
Installation and Commissioning
Wherever faults occurring in the control equipment can lead to substantial material damage
or even grievous bodily injury (that is, potentially dangerous faults), additional external
precautions must be taken or facilities provided to ensure or enforce safe operation, even
when a fault occurs (e.g. independent limit switches, mechanical interlocks, etc.).
WARNING
Operation
Emergency Stop facilities according to EN 60204, IEC 204 (VDE 0113) must remain
operative in all operating modes of the control equipment. Any disengagement of the
Emergency Stop facility must not lead to an uncontrolled or an undefined restart of the
equipment.
WARNING
Filtered drives can only be used on power systems with grounded starpoint.
CAUTION
This equipment is suitable for use in a power system up to 10,000 symmetrical amperes
(rms), for the maximum rated voltage + 10 % when protected by an appropriate standard
fuse (refer to the catalogue for the type of fuse).
WARNING
Risk of fire, severe personal and property damage
If an unsuitable braking resistor is used, this could result in a fire and severely damage,
people, property and equipment. It is essential that not only the correct braking resistor is
used, but it is installed correctly according to the instructions delivered with the braking
resistor.
The temperature of braking resistors increases significantly during operation. For this
reason, avoid coming into direct contact with braking resistors. Maintain sufficient
clearances around the braking resistor and ensure that there is adequate ventilation.

Safety notes
SINAMICS G120C Inverter
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB 11
WARNING
Repair
Repairs on equipment may only be carried out by Siemens Service, by repair centers
authorized by Siemens or by authorized personnel who are thoroughly acquainted with all
the warnings and operating procedures contained in this manual.
Any defective parts or components must be replaced using parts contained in the relevant
spare parts list.

Safety notes
SINAMICS G120C Inverter
12 Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB

SINAMICS G120C Inverter
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB 13
Introduction 2
2.1 About this manual
Who requires the operating instructions and what for?
These operating instructions primarily address fitters, commissioning engineers and machine
operators. The operating instructions describe the devices and device components and
enable the target groups being addressed to install, connect-up, parameterize, and
commission the inverters safely and in the correct manner.
What is described in the operating instructions?
These operating instructions provide a summary of all of the information required to operate
the inverter under normal, safe conditions.
The information provided in the operating instructions has been compiled in such a way that
it is sufficient for all standard applications and enables drives to be commissioned as
efficiently as possible. Where it appears useful, additional information for entry level
personnel has been added.
The operating instructions also contain information about special applications. Since it is
assumed that readers already have a sound technical knowledge of how to configure and
parameterize these applications, the relevant information is summarized accordingly. This
relates, e.g. to operation with fieldbus systems and safety-related applications.

Introduction
2.2 Guide through this manual
SINAMICS G120C Inverter
14 Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB
2.2 Guide through this manual
In this manual, you will find background information on your inverter, as well as a full
description of the commissioning procedure:
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information can be found here:
•Adapting inverter to application (Page 15)
•Frequently required parameters (Page 16)
•Extended scope for adaptation (Page 18)
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② Information on the inverter hardware can be
found here:
•SINAMICS G120C inverter (Page 21)
A
ll information relating to the commissioning of
your inverter is located in the following
chapters:
③ •Installing (Page 25)
④ •Commissioning (Page 47)
•Adapting the terminal strip (Page 79)
•Configuring the fieldbus (Page 91)
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⑥ Information regarding the maintenance and
diagnostics of your inverter is located in the
following chapters:
•Servicing and maintaining (Page 247)
•Alarms, faults and system messages
(Page 255)
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⑦ The most important technical data for your
inverter is located in this chapter:
•Technical data (Page 273)

Introduction
2.3 Adapting inverter to application
SINAMICS G120C Inverter
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB 15
2.3 Adapting inverter to application
2.3.1 General basics
Inverters are used to improve and extend the starting and speed response of motors.
Adapting the inverter to the drive task
The inverter must match the motor that it is controlling and the drive task to be able to
optimally operate and protect the motor.
Although the inverter can be parameterized for very specific applications, many standard
applications function satisfactorily with just a few adaptations.
Use the factory settings (where possible)
In simple applications, the inverter already functions with its factory settings.
Only basic commissioning is required ... for simple, standard applications
Most standard applications function after just a few adaptations made during the basic
commissioning.
2.3.2 Parameter
Parameters are the interface between the firmware of the inverter and the commissioning
tool, e.g. an operator panel.
Adjustable parameters
Adjustable parameters are the "adjusting screws" with which you adapt the inverter to its
particular application. If you change the value of an adjustable parameter, then the inverter
behavior also changes.
Adjustable parameters are shown with a "p" as prefix, e.g. p1082 is the parameter for the
maximum motor speed.
Display parameters
Display parameters allow internal measured quantities of the inverter and the motor to be
read.
Display parameters are shown with a "r" as prefix, e.g. p0027 is the parameter for the
inverter output current.

Introduction
2.4 Frequently required parameters
SINAMICS G120C Inverter
16 Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB
2.4 Frequently required parameters
Commonly used parameters
Table 2- 1 Switching to commissioning mode or restore the factory setting
Parameter Description
p0010 Commissioning parameters
0: Ready (factory setting)
1: Perform quick commissioning
3: Perform motor commissioning
5: Technological applications and units
15: Define number of data records
30: Factory setting - initiate restore factory settings
Table 2- 2 How to determine the firmware version of the Control Unit
Parameter Description
r0018 The firmware version is displayed:
Table 2- 3 How you select the command source and setpoint sources
Parameter Description
p0015 Parameter p0015 allows the setting of pre-defined I/O configurations. Further information is given in the
section: Selecting the interface assignments (Page 41).
Table 2- 4 This is how you parameterize the up and down ramps
Parameter Description
p1080 Minimum speed
0.00 [rpm] factory setting
p1082 Maximum speed
1500.000 [rpm] factory setting
p1120 Rampup time
10.00 [s]
p1121 Rampdown time
10.00 [s]

Introduction
2.4 Frequently required parameters
SINAMICS G120C Inverter
Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB 17
Table 2- 5 This is how you set the closed-loop type
Parameter Description
p1300 0: V/f control with linear characteristic
1: V/f control with linear characteristic and FCC
2: V/f control with parabolic characteristic
3: V/f control with parameterizable characteristic
4: V/f control with linear characteristic and ECO
5: V/f control for drives requiring a precise frequency (textile area)
6: V/f control for drive requiring a precise frequency and FCC
7: V/f control with parabolic characteristic and ECO
19: V/f control with independent voltage setpoint
20: Speed control (without encoder)
Table 2- 6 Optimizing starting behavior for V/f control for a high break loose torque and overload
Parameter Description
p1310 Voltage boost to compensate ohmic losses
The voltage boost is active from standstill up to the rated speed.
It is at its highest at speed 0 and continually decreases as the speed increases.
Value of voltage boost at zero speed in V:
1.732 × rated motor current (p0305) × stator resistance (r0395) × p1310 / 100%
p1311 Voltage boost when accelerating
The voltage boost is effective from standstill up to the rated speed.
It is independent of the speed and has a value in V of:
1.732 × rated motor current (p0305) × stator resistance (p0350) × p1311 / 100%
p1312 Voltage boost when starting
Setting for an additional voltage boost when powering-up, however, only for the first acceleration phase.

Introduction
2.5 Extended scope for adaptation
SINAMICS G120C Inverter
18 Operating Instructions, 01/2011, FW 4.4, A5E02999804A AB
2.5 Extended scope for adaptation
Principle of operation of BICO technology
Open/closed-loop control functions, communication functions as well as diagnostic and
operator functions are implemented in the inverter. Every function comprises one or several
BICO blocks that are interconnected with one another.
MOP output
speed
[rpm]
MOP enable (lower)
Inputs OutputParameter
MOP enable (higher)
p1036
r1050
p1035
MOP
Figure 2-1 Example of a BICO block: Motorized potentiometer (MOP)
Most of the BICO blocks can be parameterized. You can adapt the blocks to your application
using parameters.
You cannot change the signal interconnection within the block. However, the interconnection
between blocks can be changed by interconnecting the inputs of a block with the appropriate
outputs of another block.
The signal interconnection of the blocks is realized, contrary to electric circuitry, not using
cables, but in the software.
DI 0 ON/
OFF1
p0840
Index [0]
r0722.0
Figure 2-2 Example: Signal interconnection of two BICO blocks for digital input 0
Binectors and connectors
Connectors and binectors are used to exchange signals between the individual BICO blocks:
● Connectors are used to interconnect "analog" signals. (e.g. MOP output speed)
● Binectors are used to interconnect "digital" signals. (e.g. 'Enable MOP up' command)