Siemens SINUMERIK 840Di Diagnostic Manual page 424

Overview of Alarms
NCK alarms
26011 Axis %1 QEC: invalid measuring periods
Parameters: %1 = Axis name, spindle number
Definitions: $AA_QEC_MEAS_TIME_1/2/3: measuring time to determine the error criterion.
The measuring period begins when the criterion for activating the compensation value has been
satisfied (the desired velocity changes the sign). The end is defined by the machine data values. In
general, different measuring times are required for the three characteristic ranges. The presettings
should be changed only if a problem occurs. The three data apply in each case for the three
corresponding acceleration ranges.
1. $AA_QEC_MEAS_TIME_1 specifies the measuring time (for determining the error criterion) for
accelerations in the range between 0 and $AA_QEC_ACCEL_1.
2. $AA_QEC_MEAS_TIME_2 specifies the measuring time in the range from $AA_QEC_ACCEL_1
to $AA_QEC_ACCEL_2.
3. $AA_QEC_MEAS_TIME_3 specifies the measuring time in the range from $AA_QEC_ACCEL_2
to $AA_QEC_ACCEL_3 and beyond.
Reaction: Alarm display.
Remedy: Please inform the authorized personnel/service department. Enter the values correctly: 0 <
$AA_QEC_MEAS_TIME_1 < $AA_QEC_MEAS_TIME_2 < $AA_QEC_MEAS_TIME_3.
Program Clear alarm with the RESET key. Restart part program
Continuation:
26012 Axis %1 QEC: feed forward control not active
Parameters: %1 = Axis name, spindle number
Definitions: The error criterion for determining the quadrant error necessitates a correctly set feedforward control.
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.
Alarm display.
Channel not ready.
Remedy: Switch on feedforward control and set it correctly.
Program Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
26014 Axis %1 machine data %2 invalid value
Parameters: %1 = Axis name, spindle number
%2 = String: MD identifier
Definitions: Machine data includes a value that is not valid.
Reaction: NC not ready.
The NC switches to follow-up mode.
Mode group not ready, also effective for single axes
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Repeat entry with correct value and then Power On.
Program Switch control OFF - ON.
Continuation:
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© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006