Siemens SINUMERIK 840D sl Series Diagnostics Manual page 402

Overview of Alarms
Reactions: - Alarm display.
Remedy: Check settings for safe input signals (NCK I/Os, PLC DB parameters).
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
27005
Axis %1 error in data cross check: static actual value difference
Parameters: %1 = Axis number
Definitions: Via the data cross check between NCK and 611D monitoring channel, a difference in
actual values was detected, which is greater than the maximum tolerance defined in MD
$MA_SAFE_POS_TOL. This can be checked by means of the safe position values for the
two monitoring channels displayed in the service menu.
The alarm is displayed only, if monitoring with absolute reference (SE/SN) has been
enabled for the specified axis and if the user enable has been set. The alarm is cleared,
as soon as the user enable is deleted or the actual value difference between the two mon-
itoring channels falls again below the maximum permissible difference.
Reactions: - Alarm display.
Remedy: If the alarm is present statically, the user enable must be deleted. When the control is
then rebooted, the machine can be brought to the safe state again and operation resumed
by a new referencing process and setting of the user enable. Prior to setting the user
enable, the actual position of the axis displayed in the "User enable" screen must be com-
pared with the current machine position. This is obligatory to ensure the proper function-
ing of the safe limit positions (SE) and safe cams (SN).
A change of the user acknowledgement is only possible with key switch position 3 or after
input of a password.
Program Con- Alarm display showing cause of alarm disappears. No further operator action necessary.
tinuation:
27006
Axis %1 Test ext. pulse deletion running
Parameters: %1 = Axis number
Definitions: The correct functioning of the external pulse disable is being checked now by setting the
"Test stop of external shutdown" SGE.
Reactions: - Alarm display.
Remedy: Alarm disappears automatically when the test has been exited by deleting the "Test stop
of external shutdown" SGE.
Program Con- Alarm display showing cause of alarm disappears. No further operator action necessary.
tinuation:
27007
Axis %1 acceptance test mode is active
Parameters: %1 = Axis number
Definitions: Via the operator panel, an SI acceptance test has been started for example with the
acceptance test wizard. The acceptance test mode is activated via the NCK and drive for
the time of this acceptance test. In the acceptance test mode, SI PowerOn alarms can be
acknowledged with the Reset key.
Reactions: - Alarm display.
Remedy: Deselect the acceptance test, for example with the acceptance test wizard or wait until
completed (acceptance test time can be parameterized via MD
$MA_SAFE_ACCEPTANCE_TEST_TIMEOUT).
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005