Siemens SINUMERIK 840D Description Of Functions page 329

11.03
Remedy Commissioning the axial safety integrated functionality or cancellation of the
SPL protection using MD $MN_PREVENT_SYNACT_LOCK[0,1]
Program continuation Power-down the control and power-up again.
27100
At least one axis is not safely referenced
Explanation There are two reasons for this alarm:
-
not been acknowledged by the user or
-
still not been verified by subsequent referencing
Even if the axis is already referenced, there is no acknowledgement that
referencing has supplied the correct result. For example, incorrect results can
occur if the axis was moved after the control was powered-down, with the result
that the standstill position saved prior to powering-down is no longer correct. To
make sure that this does not happen, the user must acknowledge the displayed
actual position after the first referencing process.
When the user agreement has been set for the first time, the axis must be
subsequently referenced each time that the control is run-up (with absolute
encoders, this subsequent referencing is automatically executed). This
procedure is carried out to verify the standstill position saved prior to powering-
down the control.
The alarm display can be set in $MN_SAFE_ALARM_SUPPRESS_LEVEL
(MD<3) in such a way that incorrect referencing is displayed separately for
each axis.
Response Alarm display
The SGA "Axis safely referenced" is not set. SE is disabled if the safe actual
position has not yet been acknowledged by the user agreement. If the user
agreement is set, SE remains active. The safe cams are calculated and output,
but their significance is limited because referencing has not been
acknowledged.
Remedy Move all of the SI axes to the known positions and change into the
"Referencing" mode. Check the positions on the machine displayed in the user
agreement field and set "User agreement" using the selection/toggle key.
If the user agreement has already been set for the axis, then re-reference the
axes. It is only possible to change the user agreement in the key-operated
switch position 3 or after entering a password.
Program continuation Alarm display disappears with alarm cause. No further operator action
necessary.
27101
Axis %1, difference in function safe operating stop, NCK: %2,
drive: %3
Parameter %1 = Axis number
%2 = Monitoring status, safe operating stop
%3 = Monitoring status, safe operating stop
Explanation In the crosswise data comparison of result list 1 between the monitoring
channels, NCK and drive, a difference was detected in the monitoring state of
the safe operating stop monitoring.
Safe operating stop: Bit 0,1 in result list 1
monitoring state (%2, %3):
- OFF = monitoring inactive in this monitoring channel
- OK = monitoring active in this monitoring channel, limit values not violated
- L+ = monitoring active in this monitoring channel, upper limit value violated
- L- = monitoring active in this monitoring channel, lower limit value violated
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
the machine position of at least one of the axes monitored with SI has
the machine position of at least one of the axes monitored with SI has
6.1 Alarms for SINUMERIK 840digital
6 Alarms
6-329