Siemens SINUMERIK 840Di Diagnostic Manual page 767

11/2006
300906 Axis %1 drive %2 safe braking ramp exceeded
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The drive is disabled via STOP A.
Request: In monitoring cycle.
The actual velocity of the axis has not been reduced during deceleration with "nset = 0" (STOP B or
STOP C) but has increased over the follow-on velocity limit during deceleration and the tolerance
entered in MD 1348: $MD_SAFE_VELO_TOL (actual velocity tolerance for SBR).
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not
ready).
Reaction: Mode group not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: Please inform the authorized personnel/service department. Check the deceleration behavior and, if
necessary, modify the velocity tolerance in MD 1348: $MD_SAFE_VELO_TOL. Restart is only
possible with POWER ON.
Program Switch control OFF - ON.
Continuation:
300907 Axis %1 drive %2 tolerance for safe operational stop exceeded
Parameters: %1 = Axis number
%2 = Drive number
Definitions: The drive is disabled via STOP A or STOP B. This blocks the pulses over the relay "Antrieb-IMP".
Request: In monitoring cycle.
The actual position has moved too far away from the setpoint/zero position (outside the zero speed
window). The zero speed window is parameterized through MD 1330:
$MD_SAFE_STANDSTILL_TOL (safe operational stop standstill tolerance).
Reaction: Mode group not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: Please inform the authorized personnel/service department. Check the safe standstill tolerance: does
the value match the precision and control dynamics of the axis? If not, increase the tolerance.
Program Switch control OFF - ON.
Continuation:
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
Overview of Alarms
SIMODRIVE alarms
2-767