Siemens Sinumerik 840D sl Diagnostic Manual page 414

Overview of Alarms
NCK alarms
Definitions: A difference has been found on the specified safe input. The state of the specified input signal differed
in the two monitoring channels NCK and SIMODRIVE611D during the duration set in
$MA_SAFE_MODE_SWITCH_TIME.
Monitoring in question (%2):
SS/SV = Difference in SGE "Deselection of safe operating stop/Safe velocity"
SS = Difference in SGE "Safe operating stop"
SV = Difference in SGE "Selection safe velocity"
SP = Difference in SGE "Selection safe limit position"
SVOVR = Difference in SGEs "Selection SG correction"
Interface identifier NCK input (%3):
DMP<drv><mod><bit>=<value>
<drv> = Drive number of terminal block (1...31)
<mod> = Submodule number (1...8)
<bit> = Terminal number (1...16)
<value> = Value of NCK SGE (0,1)
SPL For when the SGE is parameterized at the SPL interface.
<io> = Parameterizable system variable range (01=$A_INSID, 02=$A_INSED)
<dword> = System variable double word (1,2)
<bit> = Bit number in system variable double word (1...32)
<value> = Value of NCK SGE (0,1)
Onboard input For when the SGE is parameterized at an onboard input.
<bit> = Input number = 01 ...04
<value> = Value of NCK SGE = 0,1
Interface identifier drive input (%4):
DBX<byte><bit>=<value >
<byte> = Byte number in axial DB (22, 23, 32, 33)
<bit> = Bit number in byte (0...7)
<value> = Value of drive SGE (0,1)
This alarm can be hidden by setting MD $MN_SAFE_DIAGNOSIS_MASK, bit 0 = 0.
Reaction: 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 SIMODRIVE611D 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 moni-
toring 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 monitoring channels falls again below the
maximum permissible difference.
Reaction: 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 pro-
cess 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 compared with the current machine position. This is
obligatory to ensure the proper functioning 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.
Reaction: Alarm display.
Remedy: Alarm disappears automatically when the test has been exited by deleting the "Test stop of external
shutdown" SGE.
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SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG, 2009. All Rights Reserved
03/2009