Siemens CU230P-2 HVAC User manual

s
SINAMICS G120
Control Units CU230P-2
Parameter Manual · 11/2009
SINAMICS

11/2009
SINAMICS
SINAMICS G120
Control Units CU230P-2
Parameter Manual
Valid for
Control Units Firmware version
CU230P-2 HVAC 4.3
CU230P-2 CAN 4.3
CU230P-2 DP 4.3
A5E02297932B AB
s
Parameters 1
Function diagrams 2
Faults and Alarms 3
Appendix A
List of Abbreviations B
Index C

Copyright Siemens AG 2009 All Rights Reserved
The distribution and duplication of this document or the utilization and
transmission of its contents are not permitted without express written
permission. Offenders will be liable for damages. All rights, including
rights created by patent grant or registration of a utility model or
design, are reserved.
Siemens AG
Drive Technologies
Standard Drives
Postfach 3269, 91050 Erlangen
Germany
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 2009
Technical data subject to change.
Safety Guidelines
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.
If more than one degree of danger is present, the warning notice representing the highest degree of dan-
ger 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 device/system may only be set up and used in conjunction with this documentation. Commissioning
and operation of a device/system may only be performed by qualified personnel. Within the context of
the safety notes in this documentation qualified persons are defined as persons who are authorized to
commission, ground and label devices, systems and circuits in accordance with established safety prac-
tices and standards.
Prescribed Usage
Note the following:
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.
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.
Warning
This device may only be used for the applications described in the catalog or the technical description and
only in connection with devices or components from other manufacturers which have been approved or
recommended by Siemens.
Correct, reliable operation of the product requires proper transport, storage, positioning and assembly as
well as careful operation and maintenance.
Siemens Aktiengesellschaft SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9)

Contents-5© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Contents
1 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
1.1 Introduction to Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.1.1 Explanation of list of parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.1.2 Numerical ranges of parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
1.2 List of Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
1.3 Command and Drive Data Sets – Overview . . . . . . . . . . . . . . . . . . . . . 1-409
1.3.1 Command Data Sets (CDS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-409
1.3.2 Drive Data Sets (DDS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-411
1.3.3 Motor Data Sets (MDS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-416
1.3.4 Power unit Data Set (PDS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-418
1.4 Connector/Binector (BICO)-Parameters . . . . . . . . . . . . . . . . . . . . . . . . 1-419
1.4.1 Binector Input Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-419
1.4.2 Connector Input Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-422
1.4.3 Binector Output Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-424
1.4.4 Connector Output Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-426
1.4.5 Connector/Binector Output Parameters . . . . . . . . . . . . . . . . . . . . . . . . 1-430
1.5 Quick commissioning (p0010 = 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-431
2 Function diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-433
2.1 Contents: function diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-434
2.2 Explanations for the function diagrams . . . . . . . . . . . . . . . . . . . . . . . . . 2-439
2.3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-444
2.4 Input/Output Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-452
2.5 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-460
2.5.1 Fieldbus Interface (USS, Modbus, BACnet) (CU230P-2 HVAC). . . . . . 2-460
2.5.2 PROFIdrive / PROFIBUS (CU230P-2 DP) . . . . . . . . . . . . . . . . . . . . . . 2-467
2.5.3 CANopen (CU230P-2 CAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-479
2.6 Internal control/status words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-486
2.7 Setpoint channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-504
2.8 V/f control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-514
2.9 Vector control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-518
2.10 Free Function Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-538
2.11 Technology functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-558
2.12 Technology controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-566
2.13 Signals and monitoring functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-571
2.14 Faults and warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-581
2.15 Data sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-586

Contents
Contents-6 © Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
3 Faults and Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-589
3.1 Faults and Alarms – Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-590
3.1.1 General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-590
3.1.2 Fault reactions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-592
3.1.3 Acknowledgement of faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-593
3.2 List of Faults and Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-594
A Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-651
A.1 ASCII Table (excerpt) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-652
A.2 List for motor code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-652
B List of Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-653
CIndex. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-659

1-7© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Parameters 1
Contents
1.1 Introduction to Parameters 1-8
1.2 List of Parameters 1-15
1.3 Command and Drive Data Sets – Overview 1-409
1.4 Connector/Binector (BICO)-Parameters 1-419
1.5 Quick commissioning (p0010 = 1) 1-431

Parameters
Introduction to Parameters
1-8 © Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
1.1 Introduction to Parameters
1.1.1 Explanation of list of parameters
The layout of the parameter description is as follows.
Fig. 1-1 Read-only parameter
Fig. 1-2 Write parameter
Parameter number
Indicates the relevant parameter number. The numbers used are 4 to 5-digit num-
bers. Numbers prefixed with an “r” indicate that the parameter is a “read-only”
parameter, which displays a particular value but cannot be changed directly by
specifying a different value via this parameter number.
All other parameters are prefixed with a “p”. The values of these parameters can
be changed directly in the range indicated by the “Min” and “Max” settings in the
header. If these values have a physical unit, it is shown in brackets.
[index] indicates that the parameter is an indexed parameter and specifies the
range of indices available.
.0...15 indicates that the parameter has several bits, which can be evaluated or
connected individually.
CU/PM variants
Indicates for which Control Units and/or Power Modules the parameter is valid. If
no CUs or PMs are listed the parameter is valid for all variants.
BICO (if exist)
CO: Absolute current actual value / I_act abs val:
3
r0068[0...1]
Calculated:Access level: -
-Data set:[Aeff]Unit:
Data type:
FloatingPoint32
Scaling:
Index
p2002
BICO (if exist)Index
CU/PM variants
Pre-assignment digital input 0 / Pre-assignment DI0
0
2 Integer16
p0701[0...n]
Calculated: Data type:
MaxMin
Access level: -
Can be changed: CDS, p0170Data set:
CU230P-2 CAN
CU230P-2 HVAC
PM240 Factory setting
1
T
50
Scaling: -

Introduction to Parameters
Parameters
1-9
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Parameter text (Long name/Short name)
Indicates the name of the relevant parameter.
Certain parameter names include the following abbreviated prefixes: BI, BO, CI,
CO and CO/BO followed by a colon.
These abbreviations have the following meanings:
To make use of BICO you will need access to the full parameter list. At this level
many new parameter settings are possible, including BICO functionality. BICO
functionality is a different, more flexible way of setting and combining input and
output functions.
The BICO system allows complex functions to be programmed. Boolean and
mathematical relationships can be set up between inputs (digital, analog, serial
etc.) and outputs (inverter current, frequency, analog output, relays, etc.).
At BI and CI parameters the parameter number is specified under Factory setting
with which this parameter is connected. In this case the Min and Max values have
dashes.
Access level
Indicates the level of user access. For the parameters of all variants of Control
Units CU230P-2 there is only one freely accessible access level effective. The
parameters with the declaration "Access level 1“ to "Access level 3“ belong to
them. Parameters with access level 4 are service parameters and password pro-
tected.
CoBo.pdf
Binector input, i.e. parameter selects the source of a
binary signal
Binector output, i.e. parameter connects as a binary
signal
Connector input, i.e. parameter selects the source of an
analog signal
Connector output, i.e. parameter connects as an analog
signal
Connector/Binector output, i.e. parameter connects as
an analog signal and/or as a binary signal
(0)
P9999
r9999
(999:9)
r9999
r9999 [99]
r9999
r9999
CO/BO =
CO =
CI =
BO =
BI =

Parameters
Introduction to Parameters
1-10 © Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Data type
The data types available are shown in the table below.
The information of the data types for binector and connector inputs can be com-
posed of two specifications (discreated by a slash):
Depending on the data type of the BICO input parameter (signal sink) and BICO
output parameter (signal source) the following combinations are possible when
creating BICO interconnections:
Table 1-1 Available data types
Notation Meaning
Unsigned8 (U8) 8-bit unsigned
Unsigned16 (U16) 16-bit unsigned
Unsigned32 (U32) 32-bit unsigned
Integer16 (I16) 16-bit integer
Integer32 (I32) 32-bit integer
FloatingPoint32 (Float) 32-bit floating point number
First specification: data type of the parameter
Second specification: data type of the signal source preferably to be con-
nected (binector or connector output)
Table 1-2 Possible combinations of BICO interconnections
BICO input parameter
CI parameter BI parameter
BICO output parameter Unsigned32 /
Integer16
Unsigned32 /
Integer32
Unsigned32 /
FloatingPoint32
Unsigned32 /
Binary
CO: Unsigned8 x x – –
CO: Unsigned16 x x – –
CO: Unsigned32 x x – –
CO: Integer16 x x r2050 –
CO: Integer32 x x – –
CO: FloatingPoint32 x x x –
BO: Unsigned8 – – – x
BO: Unsigned16 – – – x
BO: Unsigned32 – – – x
BO: Integer16 – – – x
BO: Integer32 – – – x
BO: FloatingPoint32 – – – –
Legend: x: BICO interconnection permitted
–: BICO interconnection not permitted

Introduction to Parameters
Parameters
1-11
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Scaling
Specification of the reference quantity with which the signal value will be con-
verted automatically.
Reference quantities, corresponding to 100%, are required for the statement of
physical units as percentages. These reference quantities are entered in param-
eters p2000 ... p2007.
In addition to p2000 ... p2007 the following scalings are used:
Calculated
Specifies whether the parameter is influenced by automatic calculations.
p0340 defines the following calculations:
p0340 = 1 contains the calculations of p0340 = 2, 3, 4, 5.
p0340 = 2 calculates the motor parameters (p0350 ... p0360, p0625).
p0340 = 3 contains the calculations of p0340 = 4, 5.
p0340 = 4 only calculates the controller parameters.
p0340 = 5 only calculates the controller limits.
These a reference to p0340 stands behind "Calculated", parameters are depen-
dent from the used Power Modules and motors. In this case the values under
"Factory setting" do not correspond to the actual values since these are found out
during the commissioning. This also applies to the motor parameters.
TEMP 100 °C = 100 %
PERCENT 1.0 = 100 %
4000H 4000 hex = 100 %
Note:
For p3900 > 0, also p0340 = 1 is automatically called.
After p1900 = 1, 2, p0340 = 3 is automatically called.

Parameters
Introduction to Parameters
1-12 © Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Can be changed
Inverter state in which the parameter is changeable. Three states are possible:
This indicates when the parameter can be changed. One, two or all three states
may be specified. If all three states are specified, this means that it is possible to
change this parameter setting in all three inverter states. (x) shows, that the
parameter is only changeable when p0010 = x.
Data Set
Parameters which are dependent on a data set are identified as follows:
CDS (Command Data Set)
They are always indexed with [0 ... n] with n = 0 ... 3 depending on setting in
p0170.
[0] = Command Data Set 0
[1] = Command Data Set 1
etc.
DDS (Drive Data Set)
They are always indexed with [0 ... n] with n = 0 ... 3 depending on setting in
p0180.
[0] = Drive Data Set 0
[1] = Drive Data Set 1
etc.
MDS (Motor Data Set) and PDS (Power unit Data Set)
They are always indexed with [0 ... n] with n = 0 ... 3 depending on setting in
p0180). The Motor Data Sets and Power unit Data Sets are allocated to the Drive
Data Sets, i.e. they are automatically addressed with the selection of a Drive Data
Set (e.g. Drive Data Set 1 includes Motor Data Set 1 and Power unit Data Set 1).
Data sets can only be applied and cleared when p0010 = 15 is set.
Commissioning C(x)
Run U
Ready to runt T

Introduction to Parameters
Parameters
1-13
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Unit
Indicates the unit of measure applicable to the parameter values.
Min
Indicates the minimum value to which the parameter can be set.
Max
Indicates the maximum value to which the parameter can be set.
Factory setting
Indicates the default value, i.e. the value which applies if the user does not specify
a particular value for the parameter (see also "Calculated“).
Description
Explanation of the function of a parameter.
Values
Lists the possible values of a parameter.
Index
The name and meaning of each individual index is specified for indexed para-
meters, except indexed parameters which belong to a data set (see "Data Set").
Bit field
For parameters with bit fields, the following information is provided about each bit:
Bit number and signal name
Meaning with signal states 0 and 1
Function diagram (optional). The signal is shown on this function diagram.
Dependency
Conditions which need to be fulfilled in connection with this parameter. Also
includes special effects which can occur between this parameter and others.

Parameters
Introduction to Parameters
1-14 © Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
1.1.2 Numerical ranges of parameters
Note:
The following numerical ranges of the parameters describe a general overview of
the SINAMICS parameters. The specific parameters are listed in Chapter 1.2.
Table 1-3 Numerical ranges of parameters
Range Description
from to
0000 0099 Operation and visualization
0100 0199 Commissioning
0200 0299 Power Module
0300 0399 Motor
0500 0599 Technology and units
0600 0699 Thermal motor protection and motor model, maximum current
0700 0799 Command sources and terminals on Control Unit
0800 0839 CDS, DDS data sets (e.g. switch over, copy)
0840 0879 Sequential control (e.g. source for ON/OFF1)
0880 0899 Control and status words
0900 0999 PROFIBUS/PROFIdrive
1000 1199 Setpoint channel
1200 1299 Functions (e.g. DC brake)
1300 1399 V/f control
1400 1799 Closed-loop control
1800 1899 Gating unit
1900 1999 Power Module and motor identification
2000 2099 Communication (PROFIBUS)
2100 2199 Faults and alarms, monitoring functions
2200 2349 Technology controller
2360 2399 Technology functions
3100 3299 Messages
3800 3859 Compound braking
3880 3889 Essential Service Mode
3900 3999 Management parameters
7800 7899 EEPROM read/write parameters
8400 8439 Real time clock
8500 8599 Data and macro management
8600 8799 CANopen
9400 9499 Parameter consistency and storage
9900 9949 Topology
9950 9999 Diagnostics (internal)
11000 11299 Free technology controllers
20000 20399 Free Function Blocks (FFB)
31000 31029 Multi zone control

List of Parameters
Parameters
1-15
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
1.2 List of Parameters
Product: SINAMICS G120, Version: 4301300, Language: eng
Objects: CU230P-2 CAN, CU230P-2 DP, CU230P-2 HVAC
Description: Operating display for the drive.
Value: 0: Operation - everything enabled
10: Operation - set "enable setpoint" = "1" (p1142)
12: Operation - RFG frozen, set "RFG start" = "1" (p1141)
13: Operation - set "enable RFG" = "1" (p1140)
14: Operation - MotID, excit. running
16: Operation - withdraw braking with OFF1 using "ON/OFF1" = "1"
17: Operation - braking with OFF3 can only be interrupted with OFF2
18: Operation - brake on fault, remove fault, acknowledge
19: Operation - DC brake active (p1230, p1231)
21: Ready for operation - set "Operation enable" = "1" (p0852)
22: Ready for operation - demagnetizing running (p0347)
31: Ready for switching on - set "ON/OFF1" = "0/1" (p0840)
35: Switching on inhibited - carry out first commissioning (p0010)
41: Switching on inhibited - set "ON/OFF1" = "0" (p0840)
42: Switching on inhibited - set "OC/OFF2" = "1" (p0844, p0845)
43: Switching on inhibited - set "OC/OFF3" = "1" (p0848, p0849)
45: Switching on inhibited - remove fault, acknowledge fault
46: Switching on inhibited - exit comm mode (p0010)
200: Wait for booting/partial booting
Dependency: Refer to: r0046
Notice: For several missing enable signals, the corresponding value with the highest number is displayed.
Note: OC: Operating condition
RFG: Ramp-function generator
COMM: Commissioning
MotID: Motor data identification
Description: Sets the access level to read and write parameters.
Value: 3: Expert
4: Service
Note: Access level 1 (standard):
Parameters for the simple operator control possibility (e.g. p1120 = ramp-function generator, ramp-up time).
Access level 2 (extended):
Parameters to operate the basic functions of the drive unit.
Access level 3 (experts):
Expert know-how is required for these parameters (e.g. BICO parameterization).
Access level 4 (service):
For these parameters, it is necessary that authorized service personnel enter the appropriate password (p3950).
r0002 Drive operating display / Drv op_display
Access level: 2Calculated: -Data type: Integer16
Unit: -Scaling: -Data set: -
p0003 Access level / Acc_level
Access level: 1Calculated: -Data type: Integer16
Can be changed: C, U, T Scaling: -Data set: -
Min Max Factory setting
3 4 3

Parameters
List of Parameters
1-16 © Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Description: Sets the parameter filter to commission a drive.
Setting this parameter filters out the parameters that can be written into in the various commissioning steps.
Value: 0: Ready
1: Quick commissioning
2: Power unit commissioning
3: Motor commissioning
5: Technological application/units
15: Data sets
29: Only Siemens int
30: Parameter reset
39: Only Siemens int
49: Only Siemens int
Note: The drive can only be powered up outside the drive commissioning (inverter enable). To realize this, this parameter
must be set to 0.
For p3900 not equal to 0, at the end of the quick commissioning, this parameter is automatically reset to 0.
Procedure for "Reset parameter": Set p0010 to 30 and p0970 to 1.
Once the Control Unit has been booted up for the first time, the motor parameters suitable for the power unit have
been defined, and the control parameters have been calculated accordingly, p0010 is automatically reset to 0.
p0010 = 3 is used for the subsequent commissioning of additional drive data sets (creating data sets: see p0010 =
15).
p0010 = 29, 39, 49: Only for internal Siemens use!
p0010 Drive commissioning parameter filter / Drv comm. par_filt
Access level: 1Calculated: -Data type: Integer16
Can be changed: C(1), T Scaling: -Data set: -
Min Max Factory setting
0 49 1

List of Parameters
Parameters
1-17
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Description: Sets the mode for the buffer memory.
Value: 0: Save in a non-volatile fashion (RAM)
1: Buffer memory active (non-volatile)
2: Clear buffer memory
Dependency: Refer to: A01066, A01067
Caution: For p0014 = 2, entries in the buffer memory are lost and cannot be retrieved.
Notice: After the value has been modified, no further parameter modifications can be made and the status is shown in
r3996. Modifications can be made again when r3996 = 0.
Note: Re p0014 = 0:
Parameter changes are saved in the volatile memory (RAM).
Non-volatile storage from RAM to ROM is carried out in the following cases:
- p0971 = 1
- Change from p0014 = 0 to 1
Re p0014 = 1:
With this setting, alarm A01066 followed by alarm A01067 can occur if parameters are continually changed via a
fieldbus system.
Parameter changes are entered in the volatile memory (RAM) and also in the non-volatile buffer memory.
In the following cases, the entries in the buffer memory are transferred into the ROM and then the buffer memory is
cleared:
- p0971 = 1
- power down/power up the Control Unit
- Change from p0014 = 1 to 0
Re p0014 = 2:
The procedure to clear the entries in the buffer memory is initiated.
p0014 is automatically set to 0 after the entries have been cleared.
The parameter is not influenced by setting the factory setting.
Description: Displays the firmware version of the Control Unit.
Dependency: Refer to: r0197, r0198
Note: Example:
The value 1010100 should be interpreted as V01.01.01.00.
Description: Displays the currently smoothed speed setpoint at the input of the speed controller or V/f characteristic (after the
interpolator).
Dependency: Refer to: r0060
Note: Smoothing time constant = 100 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The speed setpoint is available smoothed (r0020) and unsmoothed (r0060).
p0014 Buffer memory mode / Buf mem mode
Access level: 3Calculated: -Data type: Integer16
Can be changed: U, T Scaling: -Data set: -
Min Max Factory setting
0 2 0
r0018 Control Unit Firmware-Version / CU FW version
Access level: 3Calculated: -Data type: Unsigned32
Unit: -Scaling: -Data set: -
r0020 Speed setpoint smoothed / n_set smth
Access level: 2Calculated: -Data type: FloatingPoint32
Unit: [rpm] Scaling: p2000 Data set: -

Parameters
List of Parameters
1-18 © Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Description: Displays the smoothed actual value of the motor speed.
Dependency: Refer to: r0063
Note: Smoothing time constant = 100 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The value displayed in r0021 is the smoothed value of r0063.
Description: Displays the smoothed actual value of the motor speed.
r0022 is identical to r0021, however, it always has units of rpm and contrary to r0021 cannot be changed over.
Dependency: Refer to: r0063
Note: Smoothing time constant = 100 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The value displayed in r0022 is the smoothed value of r0063.
Description: Displays the smoothed converter frequency.
Dependency: Refer to: r0066
Note: Smoothing time constant = 100 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The output frequency is available smoothed (r0024) and unsmoothed (r0066).
Description: Displays the smoothed output voltage of the power unit.
Dependency: Refer to: r0072
Note: Smoothing time constant = 100 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The output voltage is available smoothed (r0025) and unsmoothed (r0072).
Description: Displays the smoothed actual value of the DC link voltage.
Dependency: Refer to: r0070
Notice: When measuring a DC link voltage < 200 V, for the Power Module (e.g. PM240) a valid measured value is not sup-
plied. In this case, when an external 24V power supply is connected, a value of approx. 24 V is displayed in the dis-
play parameter.
Note: Smoothing time constant = 100 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The DC link voltage is available smoothed (r0026) and unsmoothed (r0070).
r0026 sets itself to the lower value of the pulsating DC link voltage.
r0021 CO: Actual speed smoothed / n_act smooth
Access level: 2Calculated: -Data type: FloatingPoint32
Unit: [rpm] Scaling: p2000 Data set: -
r0022 Speed actual value rpm smoothed / n_ist rpm smooth
Access level: 3Calculated: -Data type: FloatingPoint32
Unit: [rpm] Scaling: p2000 Data set: -
r0024 Output frequency smoothed / f_outp smooth
Access level: 3Calculated: -Data type: FloatingPoint32
Unit: [Hz] Scaling: p2000 Data set: -
r0025 CO: Output voltage smoothed / V_outp smooth
Access level: 2Calculated: -Data type: FloatingPoint32
Unit: [Vrms] Scaling: p2001 Data set: -
r0026 CO: DC link voltage smoothed / Vdc smooth
Access level: 2Calculated: -Data type: FloatingPoint32
Unit: [V] Scaling: p2001 Data set: -

List of Parameters
Parameters
1-19
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Description: Displays the smoothed absolute actual current value.
Dependency: Refer to: r0068
Notice: This smoothed signal is not suitable for diagnostics or evaluation of dynamic operations. In this case, the
unsmoothed value should be used.
Note: Smoothing time constant = 300 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The absolute current actual value is available smoothed (r0027) and unsmoothed (r0068).
Description: Displays the smoothed actual value of the modulation depth.
Dependency: Refer to: r0074
Note: Smoothing time constant = 100 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The modulation depth is available smoothed (r0028) and unsmoothed (r0074).
Description: Displays the smoothed field-generating actual current.
Dependency: Refer to: r0076
Note: Smoothing time constant = 300 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The field-generating current actual value is available smoothed (r0029) and unsmoothed (r0076).
Description: Displays the smoothed torque-generating actual current.
Dependency: Refer to: r0078
Note: Smoothing time constant = 300 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The torque-generating current actual value is available smoothed (r0030 with 300 ms) and unsmoothed (r0078).
Description: Displays the smoothed torque actual value.
Dependency: Refer to: r0080
Note: Smoothing time constant = 100 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The active current actual value is available smoothed (r0031) and unsmoothed (r0080).
r0027 CO: Absolute actual current smoothed / I_act abs val smth
Access level: 2Calculated: -Data type: FloatingPoint32
Unit: [Arms] Scaling: p2002 Data set: -
r0028 Modulation depth smoothed / Mod_depth smth
Access level: 4Calculated: -Data type: FloatingPoint32
Unit: [%] Scaling: p2002 Data set: -
r0029 Current actual value field-generating smoothed / Id_act smooth
Access level: 4Calculated: -Data type: FloatingPoint32
Unit: [Arms] Scaling: p2002 Data set: -
r0030 Current actual value torque-generating smoothed / Iq_act smooth
Access level: 4Calculated: -Data type: FloatingPoint32
Unit: [Arms] Scaling: p2002 Data set: -
r0031 Actual torque smoothed / M_act smooth
Access level: 2Calculated: -Data type: FloatingPoint32
Unit: [Nm] Scaling: p2003 Data set: -

Parameters
List of Parameters
1-20 © Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Description: Displays the smoothed actual value of the active power.
Dependency: Refer to: r0082
Notice: This smoothed signal is not suitable for diagnostics or evaluation of dynamic operations. In this case, the
unsmoothed value should be used.
Note: Power delivered at the motor shaft.
The active power is available smoothed (r0032 with 100 ms) and unsmoothed (r0082).
Description: Displays the smoothed torque utilization as a percentage.
The torque utilization is obtained from the required smoothed torque in reference to the torque limit, scaled using
p2196.
Dependency: This parameter is only available for vector control. For V/f control r0033 = 0 %.
Note: Smoothing time constant = 100 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
The torque utilization is available smoothed (r0033) and unsmoothed (r0081).
For M_set total (r0079) > 0, the following applies:
- Required torque = M_set total
- Actual torque limit = M_max upper effective (r1538)
For M_set total (r0079) <= 0, the following applies:
- Required torque = - M_set total
- Actual torque limit = - M_max lower effective (r1539)
For the actual torque limit = 0, the following applies: r0033 = 100 %
For the actual torque limit < 0, the following applies: r0033 = 0 %
Description: Displays the motor utilization from the thermal I2t motor model.
Dependency: The motor utilization is only determined for permanent-magnet synchronous motors and if the I2t motor model is
activated.
The motor utilization is formed from the ratio between the I2t motor model temperature (minus 40 Kelvin) and the
reference value p0605 (motor overtemperature, fault threshold) - 40 Kelvin. If p0605 is reduced, r0034 increases
and the motor temperature remains the same.
Refer to: p0611, p0612, p0615
Note: Smoothing time constant = 100 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
A value of r0034 = -200.0 % indicates an invalid display, for example, because the thermal I2t motor model was not
activated or was incorrectly parameterized.
r0032 CO: Active power actual value smoothed / P_actv_act smth
Access level: 2Calculated: -Data type: FloatingPoint32
Unit: [kW] Scaling: r2004 Data set: -
r0033 Torque utilization smoothed / M_util smooth
Access level: 4Calculated: -Data type: FloatingPoint32
Unit: [%] Scaling: PERCENT Data set: -
r0034 Motor utilization / Motor utilization
Access level: 2Calculated: -Data type: FloatingPoint32
Unit: [%] Scaling: PERCENT Data set: -