Siemens SINUMERIK 840D sl User manual

03/2009
SINUMERIK 840D sl/ 840Di sl/
SINAMICS S120
Diagnostics Manual
Valid for
Control
SINUMERIK 840D sl/ 840DE sl
SINUMERIK 840Di sl/ 840DiE sl
Software
NCU Systemsoftware für 840D sl/ 840DE sl 2.6
Systemsoftware für 840Di sl/ 840DiE sl 1.4
Drive
SINAMICS S120
Overview of System Error Alarms 1
Overview of Alarms 2
List of Action Numbers 3
System Reactions on Alarms 4
Appendix A

Copyright © Siemens AG 2009
Order No. 6FC5398-6BP10-4BA0
Subject to change without prior notice
SINUMERIK® Documentation
Printing history
Brief details of this edition and previous editions are listed below.
The status of each edition is shown by the code in the "Remarks" column.
Status code in the "Remarks" column:
Registered Trademarks
All designations with the trademark symbol ® are registered trademarks of Siemens AG. Other designations in this documentation may be trade-
marks whose use by third parties for their own purposes may infringe the rights of the owner.
Liability disclaimer
We have checked that the contents of this document correspond to the hardware and software described. Nonetheless, differences might exist
and therefore we cannot guarantee that they are completely identical. The information contained in this document is, however, reviewed regularly
and any necessary changes will be included in the next edition.
A .... New documentation
B .... Unrevised reprint with new order number
C .... Revised edition with new status
Edition Order No. Remarks
03/2006 6FC5398-6BP10-1BA0 C
11/2006 6FC5398-6BP10-2BA0 C
01/2008 6FC5398-6BP10-3BA0 C
03/2009 6FC5398-6BP10-4BA0 C

iii
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Preface
SINUMERIK Documentation
The SINUMERIK documentation is organized in 3 parts:
•General documentation
•User documentation
•Manufacturer/service documentation
Information on the following topics is available at
http://www.siemens.com/motioncontrol/docu:
•Ordering documentation
Here you can find an up-to-date overview of publications.
•Downloading documentation
Links to more information for downloading files from Service & Support.
•Researching documentation online
Information on DOConCD and direct access to the publications in DOCon-
WEB.
•Compiling individual documentation on the basis of Siemens contents with the
My Documentation Manager (MDM), refer to http://www.siemens.com/mdm.
My Documentation Manager provides you with a range of features for genera-
ting your own machine documentation.
•Training and FAQs
Information on the range of training courses and FAQs (frequently asked
questions) are available via the page navigation.
Target audience
Project engineers, technologists (of machine manufacturers), start-up engineers
(of systems/machines), programmers.
Benefits
The Diagnostics Manual enables the intended target group to evaluate error and
fault indications and to respond accordingly.
With the help of the Diagnostics Manual, the target group has an overview of the
various diagnostic options and diagnostic tools.

Preface 03/2009
iv
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Standard version
This Diagnostics Manual only describes the functionality of the standard version.
Extensions or changes made by the machine tool manufacturer are documented
by the machine tool manufacturer.
Other functions not described in this documentation might be executable in the
control. This does not, however, represent an obligation to supply such functions
with a new control or when servicing.
Further, for the sake of simplicity, this documentation does not contain all detailed
information about all types of the product and cannot cover every conceivable
case of installation, operation or maintenance.
Technical Support
If you have any technical questions, please contact our hotline:
Europe / Africa
Phone [phone]
Fax [phone]
€ 0.14/min. from German landlines, mobile phone prices may differ.
Internet http://www.siemens.com/automation/support-request
America
Phone [phone]
Fax [phone]
Email mailto:[e-mail]
Asien / Pazific
Phone [phone]
Fax [phone]
Email mailto:[email protected]
Note
National phone numbers for technical support are provided under the following
Internet address: http://www.automation.siemens.com/partner

03/2009 Preface
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©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Questions about this documentation
If you have any queries (suggestions, corrections) in relation to this documenta-
tion, please send a fax or email to the following address:
A fax form is available at the end of this document.
SINUMERIK Internet address
http://www.siemens.com/sinumerik
CompactFlash cards for the user (only for hardware descriptions)
•The SINUMERIK CNC supports the file systems FAT16 and FAT32 for Com-
pactFlash cards. You may need to format the memory card if you want to use
a memory card from another device or if you want to ensure the compatibility
of the memory card with the SINUMERIK. However, formatting the memory
card will permanently delete all data on it.
•Do not remove the memory card while it is being accessed. This can result in
damage to the memory card and the SINUMERIK as well as the data on the
memory card.
•If you cannot use a memory card with the SINUMERIK, it is probably because
the memory card is not formatted for the control system (e.g. Ext3 Linux file
system), the memory card file system is faulty or it is the wrong type of memory
card.
•Insert the memory card carefully and the right way round into the memory card
slot (observe indicators such as arrow or similar). This way you avoid mecha-
nical damage to the memory card or the device.
•Only use memory cards that have been approved by Siemens for use with
SINUMERIK. Even though the SINUMERIK complies with the general industry
standards for memory cards, it is possible that memory cards from some
manufacturers will not function perfectly in this device or are not completely
compatible with it (you can obtain information on compatibility from the
memory card manufacturer or supplier).
•The "CompactFlash® 5000 Industrial Grade" CompactFlash card from San-
Disk has been approved for SINUMERIK (Order Number 6FC5313-5AG00-
0AA0).
Fax [phone]
Email mailto:docu.motionc[email protected]

Preface 03/2009
vi
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Safety Instructions
This Manual contains information which you should carefully observe to ensure
your own personal safety and the prevention of material damage. The notices
referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring to property damage only have no safety alert symbol
The warnings appear in decreasing order of risk as given below.
t
If several hazards of different degrees occur, the hazard with the highest degree
must always be given priority. A warning notice accompanied by a safety alert
symbol indicating a risk of bodily injury can also indicate a risk of property dam-
age.
Qualified Personnel
The associated device/system may only be set up and operated using this docu-
mentation. Commissioning and operation of a device/system may only be per-
formed by qualified personnel. Qualified persons are defined as persons who are
authorized to commission, to ground, and to tag circuits, equipment, and systems
in accordance with established safety practices and standards.
Danger
Indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury or in substantial property damage.
Warning
Indicates that death or severe personal injury will result if proper precautions are
not taken.
Caution
with a warning triangle indicates that minor personal injury can result if proper pre-
cautions are not taken.
Caution
without a warning triangle indicates that property damage can result if proper pre-
cautions are not taken.
Notice
indicates a potential situation which, if not avoided, may result in an undesirable
event or state.

vii
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Contents
1 Overview of System Error Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.1 Subject matter of this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.2 Structure of alarm description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.3 Number ranges of the alarm numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
1.4 System errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
2 Overview of Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
2.1 NCK alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
2.2 HMI-Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-558
2.3 SINAMICS-Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-630
2.4 Drives alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-995
2.5 PLC alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1005
3 List of Action Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1027
4 System Reactions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1041
4.1 System Reaction on SINUMERIK Alarms . . . . . . . . . . . . . . . . . . . . . . . . . 4-1041
4.2 Cancel criteria for alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1044
4.3 System reactions on SINAMICS Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1045
A Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1049
A.1 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1049

Contents 03/2009
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©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009

1-9
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Overview of System Error Alarms 1
1.1 Subject matter of this manual
This manual is intended as a work of reference. It allows the operator at the
machine tool:
−To correctly assess special situations when operating the machine.
−To ascertain the reaction of the system to the special situation.
−To utilize the possibilities for continued operation following the special sit-
uation.
−To follow references to other documentation containing further details.
Scope
This manual describes the alarms / messages from the NC kernel (NCK) area,
the PLC and the drives.
For special situations in conjunction with the integrated PLC, please refer to the
SIMATIC S7-300 documentation.
The alarms are sorted by ascending alarm number in each section. There are
gaps in the sequence.
1.2 Structure of alarm description
Each alarm consists of an alarm number and alarm text. There are four descrip-
tion categories:
•Explanation
•Reaction
•Remedy
•Program continuation
For a more detailed explanation of the "Reaction" category, please refer to
section: "System reactions on alarms"
For a more detailed explanation of the "Program continuation" category, please
refer to the section: "Clear criteria for alarms"

Overview of System Error Alarms 03/2009
Structure of alarm description
1-10
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Structure of the alarms for the number range 200 000 - 299 999
Each alarm (fault or warning), consisting of a number, location (optional) and
alarm text, is indicated with further information for the following categories:
•Reaction
•Acknowledgment
•Cause
•Remedy
Note
Instead of <location>, the following is indicated in the alarm display:
•Axis name and drive number or
•Bus and slave number of the PROFIBUS DP component affected
For a more detailed explanation of the "Reaction" / "Acknowledgement" category,
please refer to section: "System reactions on SINAMICS alarms".
"Cause":
For the cause of the alarm/warning, the fault / warning value is prepared as far as
possible in text form.
Action list
The actions described in the alarm texts ("Action %---") are explained in detail in
the table in the "Action list" section.

Number ranges of the alarm numbers
03/2009 Overview of System Error Alarms
1-11
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
1.3 Number ranges of the alarm numbers
NCK alarms
HMI alarms/messages
Tabelle 1-1 Number ranges of the alarm numbers
000 000 - 009 999 General alarms
010 000 - 019 999 Channel alarms
020 000 - 029 999 Axis/spindle alarms
060 000 - 064 999 Cycle alarms SIEMENS
065 000 - 069 999 Cycle alarms user
070 000 - 079 999 Compile cycles, manufacturer and OEM
Tabelle 1-2 Number ranges of the alarm numbers, continued
100 000 - 100 999 Basic system
101 000 - 101 999 Diagnosis
102 000 - 102 999 Services
103 000 - 103 999 Machine
104 000 - 104 999 Parameters
105 000 - 105 999 Programming
106 000 - 106 999 Reserve
107 000 - 107 999 OEM
108 000 - 108 999 HiGraph
109 000 - 109 999 Distributed systems (M to N)
110 000 - 110 999 Cycles
113 000 - 113 999 Bedienoberfläche ergänzen
114 000 - 114 999 HT 6
119 000 - 119 999 OEM
120 000 - 129 999 HMI Advanced messages
130 000 - 139 999 OEM
142 000 - 142 099 RCS Viewer Embedded / RCS Host
Embedded
149 000 -149 999 ePS

Overview of System Error Alarms 03/2009
Number ranges of the alarm numbers
1-12
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
SINAMICS alarms (faults/warnings)
Drive alarms
PLC alarms/messages
Tabelle 1-3 Number ranges of the message numbers, continued
201 000 - 203 999 Contro Unit
204 000 - 204 999 Reserved
205 000 -205 999 Power unit
206 000 - 206 999 Infeed
207 000 - 207 999 Drive
208 000 - 208 999 Option Board
209 000 - 209 999 Reserved
213 000 - 213 002 Lisense
230 000 - 230 999 DRIVE-CLiQ-component power unit
231 000 - 231 999 DRIVE-CLiQ-component encoder 1
232 000 - 232 999 DRIVE-CLiQ-component encoder2
233 000 - 233 999 DRIVE-CLiQ-component encoder 3
234 000 - 234 999 Reserved
235 000 - 235 999 Terminal module 31 (TM31)
236 000 - 236 999 Reserved
240 000 - 240 999 Controller Extension (NX32)
241 000 - 248 999 Reserved
249 000 - 249 999 SINSMICS GM7SM7GL
250 000 - 250 999 Communication Board (COMM BOARD)
250 500 - 259 999 Reserved
Tabelle 1-4 Number ranges of the alarm numbers, continued
300 000 - 399 999 Drive
Tabelle 1-5 Number ranges of the alarm numbers, continued
400 000 - 499 999 General alarms
500 000 - 599 999 Channel alarms 2)
600 000 - 699 999 Axis/spindle alarms 2)
700 000 - 799 999 User area 2)
800 000 - 899 999 Sequencers/graphs 2)
(810 001 - 810 009 System error messages from PLC 1))

Number ranges of the alarm numbers
03/2009 Overview of System Error Alarms
1-13
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
1) More detailed information is available via the diagnostic function (diagnostic buffer) in SIMATIC
STEP 7.
2) The PLC alarms in the range 500000 - 899999 are configured and described by the machine ma-
nufacturer.
Reference
Reference is made to the following documents:Manual HMI sl
Function Manual of basic machines, supporting manuals: A2, A3, B1, B2, D1, F1, G2,
H2, K1, K2, N2, P1, P3, R1, S1, V1, W1, Z1
Function Manual of expanded functions, supporting manuals: A4, B3, B4, F3, H1, K3,
K5, M1. M5, N3, N4, P2, P5, R2, S3, S7, T1, W3, W4, Z
Function Manual of special functions, supporting manuals: F2, G1, G3, K6, M3, S9, T3,
TE01, TE02, TE1, TE3, TE4, TE6, TE7, TE8, V2, W5, W6, Z3
Function Manual Safety Integrated
User Manual POSMO SI/CD/CA
Operating Manual HMI sl Turning
Operating Manual HMI sl Millng
Operating Manual HMI sl Universal
Operating ManualHMI-Advanced
Operating ManualHMI-Embedded
Function Manual HLA-Modul
Commissioning Manual, Commissioning CNC: NCK, PLC, Antrieb
Commissioning Manua, Commissioning CNC: ShopMill
Commissioning Manual, Commissioning CNC: ShopTurn
Commissioning Manual, Commissioning Basesoftware und HMI sl:
IM9, TX2, IM7
Commissioning Manual, Commissioning Basesoftware and HMI-Advanced,
M4, BE1, TX2, IM8
Commissioning Manual, Commissioning Basesoftware and HMI-Embedded, IM2, BE1,
TX2, IM7
Function Manuall of Tool Management
Function Manual of ISO-dialects for SINUMERIK
Function Manual of Synchronized actions
Programmiing Manual Job planing

Overview of System Error Alarms 03/2009
System errors
1-14
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
1.4 System errors
The following alarms are system errors:
These system error alarms are not described in detail. If such a system error
occurs, please contact the hotline and indicate the following details:
−Alarm number
−Alarm text and
−The internal system error number
1000 1005 1013 1017
1001 1010 1014 1018
1002 1011 1015 1019
1003 1012 1016 1160

2-15
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Overview of Alarms 2
2.1 NCK alarms
0 No (more) alarm(s) present
Definitions: If the communication (variable service) requests more alarms than currently available in the alarm list,
this alarm is communicated as an end-of-file indication.
Reaction: No alarm reaction.
Remedy: --
Program Con-
tinuation:
Internal
1030 System error in link module error code %1 error type %2
Parameters: %1 = Hex-Zahl Link-Error
%2 = Hex-Zahl Link-Error-Type
Definitions: This alarm is not a user error. An internal error has occurred in the software of the link module. Two
parameters are output with this error for debugging purposes. They provide information about the
cause and location of the error.
Reaction: NC not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Make a note of the error text and contact Siemens AG A&D MC, Hotline (tel./fax: see alarm 1000)
Program Con-
tinuation:
Switch control OFF - ON.
1031 Link module generated an unspecified error %1 NCU %2 %3 %4
Parameters: %1 = Hex-Zahl unspecified status in stateOfLinkModules
%2 = NCU number
%3 = Command from link module to NCK
%4 = Status of own link
Definitions: This alarm is not a user error.
- 1. If NCU== 0 -> A parameter not equal to zero was not found
- 2. If NCU not equal to zero -> An error which the NC was not able to interpret in the connection to
this NCU. The error is output as a number. It is possible that the NCU link module is running a newer
software version than the NC.
The other parameters are used for error localization in the NC/LINK-MODUL software.
Reaction: NC not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Make a note of the error text and contact Siemens AG A&D MC, Hotline (tel./fax: see alarm 1000)
Program Con-
tinuation:
Switch control OFF - ON.

Overview of Alarms 03/2009
NCK alarms
2-16
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
1100 No valid firmware
Definitions: No memory card or memory card without valid firmware (license) inserted.
Reaction: Alarm display.
Remedy: Make a note of the error text and contact Siemens AG A&D MC, Hotline (tel./fax: see alarm 1000)
Program Con-
tinuation:
Switch control OFF - ON.
2000 PLC sign-of-life monitoring
Definitions: The PLC must give a sign of life within a defined period of time (MD10100
$MN_PLC_CYCLIC_TIMEOUT). If this does not occur, the alarm is triggered.
The sign of life is a counter reading on the internal NC/PLC interface which the PLC causes to count
up with the 10 ms time alarm. The NCK also tests cyclically whether the counter reading has changed.
Reaction: NC not ready.
Local alarm reaction.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Please inform the authorized personnel/service department. Check monitoring time frame in
MD10100 $MN_PLC_CYCLIC_TIMEOUT (reference value: 100ms).
Establish the cause of the error in the PLC and eliminate it (analysis of the ISTACK. If monitoring has
responded with a loop in the user program rather than with a PLC Stop, there is no ISTACK entry).
Program Con-
tinuation:
Switch control OFF - ON.
2001 PLC has not started up
Definitions: The PLC must give at least 1 sign of life within a period of time defined in MD10120
$MN_PLC_RUNNINGUP_TIMEOUT (default: 1 sec.).
Reaction: NC not ready.
Local alarm reaction.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: - Please inform the authorized personnel/service department. The monitoring time in MD10120
$MN_PLC_RUNNINGUP_TIMEOUT must be checked and adapted to the first OB1 cycle.
- Determine the cause of error in the PLC (loop or stop in the user program) and eliminate it.
Program Con-
tinuation:
Switch control OFF - ON.
2100 NCK battery warning threshold reached
Definitions: The undervoltage monitor of the NCK battery has reached the prewarning threshold. This is at 2.7-2.9
V (nominal voltage of the battery is 3.0-3.1 V at 950 mAh).
Reaction: Alarm display.
Remedy: Please inform the authorized personnel/service department. The battery must be replaced within the
next 6 weeks. After this period, the voltage can drop below the alarm limit of 2.4-2.6 V if the RAMs to
be buffered take up a lot of current.
Program Con-
tinuation:
Clear alarm with the Delete key or NC START.
2101 NCK battery alarm
Definitions: The undervoltage monitoring (2.4 - 2.6 V) of the NCK battery has responded during cyclic operation.
Reaction: Alarm display.

NCK alarms
03/2009 Overview of Alarms
2-17
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Remedy: If the NCK battery is replaced without interrupting the power supply, no data will be lost. This means
that production can continue without taking any further steps. (A buffer capacitor on the NCK holds
the supply voltage for at least 30 minutes and the battery can be replaced within this time even when
the control is switched off).
Sinumerik combines an NCU's two potential parts subject to wear (fan/battery) in one shared mechan-
ically replacable module the construction of which is easily accessible.
When the battery module is unplugged during operation, the module is also separated from the fan's
air supply. Therefore the battery should only be replaced during operation, if production cannot be
continued otherwise.
If it is not possible to replace the battery quickly, a second fan/battery module should be available for
use during the replacement process. It should be plugged onto the NCU during replacement of the
battery.
In this context please note for the safety function of the '840D sl' that it will switch off the module auto-
matically after a certain time, if the fan is defect or not plugged in; this will protect the NCU from thermal
destruction (see Manual: chapter Dual fan/battery module).
Program Con-
tinuation:
Clear alarm with the Delete key or NC START.
2102 NCK battery alarm
Definitions: The undervoltage monitoring (2.4 - 2.6 V) of the NCK battery was detected during system power-up.
Reaction: NC not ready.
The NC switches to follow-up mode.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Please inform the authorized personnel/service department. Pull out the battery/fan unit from the NC
module and replace the battery (type: lithium battery with lead, size 1/2 AA, 850 mAh, min. 3.2 V).
The system must then be reinitialized because it must be assumed that data has been lost in the buff-
ered RAM during the last power-off phase as a result of insufficient supply voltage (refer to Section
2.2 in the Installation and Start-up Guide for the procedure).
The following data might have been corrupted or entirely lost:
- NC machine data
- Drive machine data
- Option data
- Setting data
- User variable
- Global subroutines
- Cycles and macros, as well as
- PLC machine data
- PLC basic program
- PLC user program, and all
- PLC user data
User data in the NCK and PLC (e.g. tool and workpiece data) that have been altered by the manufac-
turing process since the last data backup must be updated manually to match the present machine
status!
Program Con-
tinuation:
Switch control OFF - ON.
2110 NCK temperature alarm
Definitions: The temperature sensor has reached the response threshold of 60 degrees C +/- 2.5 degrees C.
Reaction: Alarm display.
Remedy: In order to reset the sensor, the temperature must be reduced by 7 degrees C.
Program Con-
tinuation:
Clear alarm with the Delete key or NC START.

Overview of Alarms 03/2009
NCK alarms
2-18
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
2120 NCK fan alarm type %1
Definitions: The fan consists of a 26 V DC motor with electronic commutator (rated speed: approx. 8700 rpm). The
commutator signal is used for speed monitoring, response speed: < 7500 rpm.
In the case of a fan defect, Solutionline modules can be forced to power off in order to prevent them
from mechanical destruction (see Manual: chapter Dual fan/battery module). This applies, if the fan
alarm is of type one.
Reaction: Alarm display.
Remedy: Please inform the authorized personnel/service department. The unit with the fan and NCK battery
must be replaced.
Program Con-
tinuation:
Clear alarm with the Delete key or NC START.
2130 5V/24V encoder or 15V D/A converter undervoltage
Definitions: A failure has occurred in the power supply to the encoder (5V/24V) or D/A converter (+/-15V).
Reaction: NC not ready.
The NC switches to follow-up mode.
Mode group not ready, also effective for single axes
NC Start disable in this channel.
Axes of this channel must be re-referenced.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Please inform the authorized personnel/service department. Check the encoder and cable for short-
circuits (the fault should not occur when you remove the cable). Check the power feeder line.
Program Con-
tinuation:
Switch control OFF - ON.
2140 The actual service switch position forces the SRAM to be cleared at the
next Power On (general reset active)
Definitions: The initialization switch is currently set to overall reset. This means that the module's SRAM is deleted
with the next module reset. The NC data memory is cleared during this operation.
Reaction: NC not ready.
Interface signals are set.
Alarm display.
Remedy: Reset initialization switch to zero.
Program Con-
tinuation:
Alarm display showing cause of alarm disappears. No further operator action necessary.
2190 Hardware plug-in module for communication with the digitizer missing
Definitions: MD $MN_ASSIGN_DIGITIZE_TO_CHAN was used to activate the digitizing function by assigning it
to a channel. The function requires a hardware module (RS422 board plugged into the NCU) for com-
munication with the digitizing unit. This module was not found when booting.
Reaction: Interface signals are set.
Alarm display.
Remedy: Please inform the authorized personnel/service department. Plug in communications module or can-
cel channel assignment.
Program Con-
tinuation:
Switch control OFF - ON.

NCK alarms
03/2009 Overview of Alarms
2-19
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
2192 No NCU link module exists, MD %1 reset
Parameters: %1 = String: MD identifier
Definitions: An attempt was made to activate the NCU link functionality but the hardware is not available. The MD
was reset. Only occurs with the NCU link system
Reaction: NC not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Install the hardware module and activate the function again (MD).
Program Con-
tinuation:
Switch control OFF - ON.
2193 'Safety Integrated' is not available for link axis %1.
Parameters: %1 = Machine axis index
Definitions: The "Safety Integrated" function is not available for a link axis. Only occurs with the NCU link system
Reaction: NC not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Use "Safety Integrated" function for local axes only.
Program Con-
tinuation:
Switch control OFF - ON.
2194 Link axis active and $MN_MM_SERVO_FIFO_SIZE != 3
Definitions: At least one axis is to be distributed via NCU link, then the machine data
$MN_MM_SERVO_FIFO_SIZE must be 3. Occurs only with an NCU link system.
Reaction: NC not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Set $MN_SERVO_FIFO_SIZE to 3.
Program Con-
tinuation:
Switch control OFF - ON.
2195 [Channel %1: ] Axis %2 high-speed punching/nibbling not possible via
link
Parameters: %1 = Channel number
%2 = Axis name, spindle number
Definitions: An attempt was made to activate high-speed nibbling or punching for an axis programmed on a differ-
ent NCU than the drive.
Reaction: Mode group not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: High-speed nibbling and punching is only supported on one NCU.
Program Con-
tinuation:
Clear alarm with the RESET key in all channels of this mode group. Restart part program.
2196 Link axis active andMD18720 $MN_MM_SERVO_FIFO_SIZE != %1
Parameters: %1 = required value in MD18720 $MN_MM_SERVO_FIFO_SIZE

Overview of Alarms 03/2009
NCK alarms
2-20
©Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Definitions: Occurs only with an NCU link system.
- Possible causes of the fault:
- At least one axis is to be distributed via NCU link, then the MD18720 $MN_MM_SERVO_FIFO_SIZE
must be 3 or 4.
- The IPO cycle of this NCU is faster than the link communication cycle, then the MD18720
$MN_MM_SERVO_FIFO_SIZE must be set to the value proposed in the alarm.
Reaction: NC not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: MD18720 $MN_MM_SERVO_FIFO_SIZE must be set to the value proposed in the alarm.
Program Con-
tinuation:
Switch control OFF - ON.
2200 [Channel %1: ] Fast punching/nibbling not possible in several channels
Parameters: %1 = Channel number
Definitions: An attempt was made to activate fast nibbling or punching in a channel while it has already been active
in another channel. Fast punching and nibbling is only possible simultaneously in the same channel.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Fast nibbling and punching simultaneously in 1 channel only.
Program Con-
tinuation:
Clear alarm with the RESET key. Restart part program
2900 Reboot is delayed
Definitions: This alarm indicates a delayed reboot.
This alarm only occurs when reboot was carried out by the HMI and MD10088
$MN_REBOOT_DELAY_TIME was set greater than zero.
The alarm can be suppressed with MD11410 $MN_SUPPRESS_ALARM_MASK BIT 20.
Reaction: NC not ready.
The NC switches to follow-up mode.
Mode group not ready, also effective for single axes
Interpreter stop
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Alarm reaction delay is cancelled.
Remedy: See MD10088 $MN_REBOOT_DELAY_TIME and MD11410 $MN_SUPPRESS_ALARM_MASK.
Program Con-
tinuation:
Switch control OFF - ON.
3000 Emergency stop
Definitions: The EMERGENCY STOP request is applied to the NCK/PLC interface DB10 DBX56.1 (Emergency
stop).
Reaction: NC not ready.
Mode group not ready, also effective for single axes
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Alarm reaction delay is cancelled.
Remedy: Please inform the authorized personnel/service department. Remove the cause of the emergency
stop and acknowledge the emergency stop via the PLC/NCK interface DB10 DBX56.2 (emergency
stop acknowledgement).
Program Con-
tinuation:
Clear alarm with the RESET key in all channels of this mode group. Restart part program.