Siemens Sinumerik 840D sl Function Manual page 641

10/15
27000
Parameter
Explanation
Response
Remedy
Program r
continuation
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
Axis %1 is not safely referenced
%1 axis name, spindle number
There are two reasons for this alarm:
-- the user has still not acknowledged the machine position,
-- the machine position has not yet been verified through follow--up
referencing.
Even if the axis is already referenced there is no acknowledgment 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 stop position saved prior to powering--
down is no longer correct. To ensure that this does not happen, the
user must acknowledge the displayed actual position after the first
referencing operation.
After the user agreement has been set for the first time, the axis must
be subsequently referenced each time that the control is booted (with
absolute encoders, this subsequent referencing is automatically exe-
cuted). This procedure is carried out to verify the stop position saved
prior to powering--down the control.
The alarm display can be set using MD10094
$MN_SAFE_ALARM_SUPPRESS_LEVEL (MD>=3) so that the group
alarm 27100 is displayed for all SI axes.
Alarm display
The SGA "axis safely referenced" is not set. SE is disabled if the safety
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 referenc-
ing has not been acknowledged.
Move the axis to a known position, change to the "referencing" mode
and press the softkey "Agreement". Check the positions in the agree-
ment screen at the machine. If these correspond to those expected at
the known position, confirm this using the toggle key. If the user agree-
ment has already been set, re--reference the axis.
The user agreement can only be changed in key--actuated switch
setting 3 or after entering a password.
Warning:
If the axis has not been safely referenced and the user has not issued
a user agreement, then the following applies:
-- the safe cams are still not safe.
-- the safe limit positions are still not active
The alarm is no longer displayed when the alarm cause has been
removed. No other operator actions are required
10.2NCK safety alarms for Sinumerik 840D sl
Diagnostics
10-641