03.2010
Siemens AG 6SE7087-6QX70 (Version AL)
SIMOVERT MASTERDRIVES Compendium Motion Control 23
Number / Alarm Cause Counter-measure
A145
Actual-value disable
not allowed - axis
standstill
The "digital input" with the "disable actual
value" function was actuated while the roll
feed was running.
Effect:
The axis movement is stopped via the
deceleration ramp, the "disable actual value"
function is not executed.
The "digital input" for "disable actual value"
can only be actuated when the axis is
stationary.
A146
Direction of movement
not allowed
A positioning movement was aborted. When
attempting to resume the movement at the
point of interruption, the roll feed would have
had to travel in the opposite direction to reach
the programmed target position. This is
inhibited by the setting of machine data 37
"response after abort".
There are various possible reasons for the
axis crossing the target position when a
positioning movement is aborted:
- Motor coastdown
- The axis was moved intentionally, e.g. in
setup mode.
Effect:
The axis movement is inhibited.
Move the axis in front of the target position in
setup mode before continuing.
A148
Deceleration = 0
The current deceleration value is 0, e.g.
because of a RAM storage error or an error in
the technology firmware.
Effect:
The position control system is deactivated and
the drive is decelerated via the "deceleration
time during errors" (machine data 43).
This fault should not normally occur. It is used
as an emergency stop feature for the
technology software.
Replace the hardware (M7; MCT).
A149
Distance to go negative
Internal error in the technology software.
Effect:
The position control system is deactivated and
the drive is decelerated via the "deceleration
time during errors" (machine data 43).
This fault should not normally occur. It is used
as an emergency stop feature for the
technology software.
A150
Slave axis already
allocated to other
master axis
The selected NC program contains a slave
axis which is already being used by another
master axis (M7 only, not significant for the
F01 technology option).
Example:
NC program 1, started in axis X, contains NC
blocks for axes X and Y. NC program 2 is
started in axis Z and contains NC blocks for
axes Z and Y. This program is denied with
warning 150, because axis Y is already being
used by program 1.
Effect:
NC program execution is inhibited or aborted.
The same slave axis cannot be used
simultaneously by several NC programs.
A151
Slave axis operating
mode not allowed
The slave axis required by the master axis is
not in "slave" mode (M7 only, not significant
for the F01 technology option).
Effect:
NC program execution is inhibited or aborted,
the axis is brought to a standstill via the
deceleration ramp.
The slave axis must be switched to "slave"
mode.