Siemens Sinumerik 840D sl Diagnostic Manual page 34

Overview of Alarms
NCK alarms
4065 Buffered memory was restored from backup medium (potential loss of
data!)
Definitions: Only occurs with SINUMERIK 840D / 840Di sl / 802D.
!! 840Di sl only
The user data of the NC and the remanent data of the PLC are stored in the static memory area
(SRAM) of the MCI board. The content of the SRAM is backed up as an SRAM image on PCU hard
disk at each "NCK POWER ON reset" and each time Windows XP is closed down normally. The pre-
viously valid SRAM image then becomes the SRAM backup, which is also stored on the PCU hard
disk.
The SRAM backup is used and alarm 4065 issued in the following cases:
HW serial no SRAM MCI board SRAM image
MCI board
1. Known
2. Unknown
3. Unknown
!! Only for 802D
The reason for this alarm is that the backup time is exceeded. Make sure that the required operating
time of the control corresponds to the specifications in your Installation & Start-up Guide. The current
backup copy of the buffered memory has been created by the last internal data backup via the "Save
data" softkey on the HMI.
Reaction: NC not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
Remedy: Make a POWER ON reset.
!! 840Di / 840Di sl only:
Alarm 4065 also has to be acknowledged on the HMI after a POWER ON reset:
HMI: Operating area switchover > Diagnostics > NC/PLC Diagnostics > Diagnostics > "Acknowledge
alarm 4065" button
Note
Press the "ETC" key to change to the secondary softkey bar in order to acknowledge the alarm with
a softkey.
Program Con- Switch control OFF - ON.
tinuation:
4070 Normalizing machine data has been changed
Definitions: The control uses internal physical units (mm, degrees, s, for paths, velocities, acceleration, etc.). Dur-
ing programming or data storage, some of these values are input and output using different units
(rev./min, m/s2, etc.).
The conversion is carried out with the scaling factors that can be entered (system-spefic MD array
MD10230 $MN_SCALING_FACTORS_USER_DEF USER_DEF[n] (n ... index number 0 - 10), when
the corresponding masking bit is set to "1".
If the masking bit is set to "0" then scaling takes place with the internal standard factors.
The following machine data influence the scaling of other MDs:
MD10220: $MN_SCALING_USER_DEF_MASK
MD10230: $MN_SCALING_FACTORS_USER_DEF
MD10240: $MN_SCALING_SYSTEM_IS_METRIC
MD10250: $MN_SCALING_VALUE_INCH
MD30300: $MA_IS_ROT_AX
If these data are modified, the NCK must be powered up again. Only then will the input of dependent
data be performed correctly.
Reaction: Alarm display.
Remedy: Please inform the authorized personnel/service department.
If the alarm has been displayed after downloading an MD file which is consistent within itself, then the
download operation must be repeated with a new NC power-up. (The file contains scaling-dependent
machine data in front of the scaling factors).
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
2-34
"OK" "OK"
No No
Yes No
No No
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG, 2009. All Rights Reserved
03/2009