Siemens Simovert Masterdrives Compact Plus Series - Page 285

Faults and Alarms 06.2006
6SE7087-6KP50 Siemens AG
12-22 Operating Instructions SIMOVERT MASTERDRIVES
Number / Alarm Cause Counter-measure
A138
Axis assignment of roll
feed incorrect
The NC block contains an axis number which
is defined as a roll feed axis but the axis type
is defined as an incremental or absolute
position encoder (machine data 1 = 1 or 2).
(M7 only, not significant for the F01 technology
option) .
The NC block for a roll feed axis type
(machine data 1 = 3) contains:
-No axis number (X, Y, Z...)
-An incorrect axis number
Effect:
NC program execution is inhibited or aborted.
-Axis type 1 or 2:The block is not allowed to
contain an axis number which is defined as a
roll feed (M7 only).
-Axis type 3:The axis number of the roll feed
must be specified in every NC block.
A139
Incorrect
parameterization
PosTrack MotorEnc
Alarm is tripped only for rotary axis of motor
encoder. The bit width of the product of the
gear denominator (U810.2 * P116.2) must not
be greater than the difference of the 32 bit
data width of the flipflop and the multiturn
resolution of the encoder. Example: Torque
motor with EQN1325
MT: Multiturn resolution = 12
P116: 2/7
U810.2max = 2^(32 - MT)/P116.2
U810.2max = 149796
In accordance with the adjacent formula
reduce the gear denominator of P116 and/or
U810 respectively.
A140
Following error in
standstill
The following error limit for standstill was
exceeded at standstill:
-Following error monitoring - at standstill
(machine data 14) was entered incorrectly.
-The value entered for "in position - exact stop
window" (machine data 17) is greater than the
value in "following error monitoring - at
standstill" (machine data 14).
-The axis was pushed out of position
mechanically.
Effect:
The position control system is deactivated and
the axis decelerates via "deceleration time
during errors" (machine data 43).
-Check and correct the machine data.
-Optimize the speed/current controller,
-Rectify mechanical problem.
A141
Following error in
motion
The following error limit for motion was
exceeded during a traversing movement:
-Following error monitoring - in motion
(machine data 15) was entered incorrectly.
-The mechanical system cannot follow the
commands of the position controller.
-Actual position value invalid
-Incorrect optimization of the position controller
or speed controller.
-The mechanical system is sluggish or
blocked.
Effect:
The position control system is deactivated and
the drive decelerates via "deceleration time
during faults" (machine data 43).
-Check and correct the machine data.
-Check the actual position value (speed-
controlled operation); check position encoder,
evaluator module and encoder lead.
-Optimize the position controller or the speed
controller.
-Check the mechanical system.