Siemens Simovert Masterdrives Compact Plus Series - Page 286

06.2006 Faults and Alarms
Siemens AG 6SE7087-6KP50
SIMOVERT MASTERDRIVES Operating Instructions 12-23
Number / Alarm Cause Counter-measure
A142
In position - timer
monitoring
The "in position - exact stop window" was not
reached within the time specified in "in position
- timer monitoring":
-In position - exact stop window (machine data
17) too small
-In position - timer monitoring (machine data
16) too short
-Position controller or speed controller not
optimized
-Mechanical causes
Effect:
The position control system is deactivated.
-Check and correct the machine data.
-Optimize the position controller or speed
controller.
-Check the mechanical system.
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.