Siemens SINUMERIK 840D Description Of Functions page 350

6 Alarms
6.2 Alarms from SIMODRIVE 611 digital
Remedy Please inform the authorized personnel/service department. The user must
identify the cause and take appropriate measures.
Program continuation Clear the alarm with the RESET key. Restart part program.
300911
Axis %1, drive %2 error in one monitoring channel
Parameter %1 = NC axis number
%2 = drive number
Explanation The mutual comparison of the two monitoring channels has found a difference
between input data or results of the monitoring functions. One of the monitoring
functions no longer functions reliably, i.e. safe operation is no longer possible.
Response Alarm display
Remedy Please inform the authorized personnel/service department. Locate the
difference between the monitoring channels. The error code indicating the
cause is displayed as follows:
For 840D the error code is output in the alarm text.
For 661D
This significance of the error code can be found as follows:
For 840D: Description of Alarm 27001
The safety-relevant machine data might not be identical or the SGEs might not
be at the same level (re-measure or check in SI service display). If no error of
this type is apparent, an error may have occurred in the CPU, e.g. a "flipped"
memory cell. This error can be temporary (in this case it can be eliminated by a
power on) or permanent (if it re-occurs again after power on replace the
hardware).
Program continuation Clear the alarm with the RESET key. Restart part program.
300914
Axis %1, drive %2 Safely reduced velocity exceeded
Parameter %1 = NC axis number
%2 = drive number
Explanation The drive is stopped using the response configured in MD 1361:
$MD_SAFE_VELO_STOP_MODE. At the end of the stop response, the drive
remains in closed-loop control, the axis is monitored for SBH.
Interrogation: In the monitoring clock cycle.
The axis has moved faster than that specified in MD 1331:
$MD_SAFE_VELO_LIMIT[n] (limit values for safely-reduced speed). If the
function "correction, safely-reduced speed" in MD 1301:
$MD_SAFE_FUNCTION_ENABLE has been enabled (enable safe functions),
then, for SG2 and SG4, the entered correction factor must be taken into
account for the permissible speed.
Response NC start inhibit in this channel
NC stop for alarm
Alarm display
Interface signals are set
Remedy Please inform the authorized personnel/service department. Check the
machine data values that have been entered. Check the safe input signals: Is
the correct one of the four speed limits selected?
Program continuation Clear the alarm with the RESET key. Restart part program.
6-350
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
MD 1395: $MD_SAFE_STOP_F_DIAGNOSIS (diagnostics for
STOP F)
© Siemens AG 2003 All Rights Reserved
11.03