Axis %1 Qec: Invalid Acceleration Characteristic; Axis %1 Qec: Invalid Measuring Periods; Axis %1 Qec: Feed Forward Control Not Active - Siemens Sinamics S120 Diagnostic Manual

NCK alarms
26010

Axis %1 QEC: invalid acceleration characteristic

Parameters: %1 = Axis name, spindle number
Definitions: $AA_QEC_ACCEL_1/2/3: The acceleration characteristic is divided into three areas. In each area there is a different
quantization of the acceleration steps. The defaults should be changed only if compensation is inadequate in these
acceleration areas.
The defaults are as follows:
- $AA_QEC_ACCEL_1 with approx. 2% of maximum acceleration ($AA_QEC_ACCEL_3),
- $AA_QEC_ACCEL_2 with approx. 60% of maximum acceleration ($AA_QEC_ACCEL_3),
- $AA_QEC_ACCEL_3 with maximum acceleration (MD32300 $MA_MAX_AX_ACCEL).
Reaction: Alarm display.
Remedy: Please inform the authorized personnel/service department. Enter the values correctly:
0 < $AA_QEC_ACCEL_1 < $AA_QEC_ACCEL_2 < $AA_QEC_ACCEL_3.
Program Clear alarm with the RESET key. Restart part program
Continuation:
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 MD11412 $MN_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 Teileprogramm neu starten.Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
358
Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
Alarms