Siemens simovert masterdrives Operating Instructions Manual page 333

10.2006
Number / Alarm Cause
A142 The "in position - exact stop window" was not
reached within the time specified in "in position
In position - timer - timer monitoring":
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.
A145 The "digital input" with the "disable actual
value" function was actuated while the roll
Actual-value disable feed was running.
not allowed - axis
standstill Effect:
The axis movement is stopped via the
deceleration ramp, the "disable actual value"
function is not executed.
A146 A positioning movement was aborted. When
attempting to resume the movement at the
Direction of movement point of interruption, the roll feed would have
not allowed 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.
A148 The current deceleration value is 0, e.g.
because of a RAM storage error or an error in
Deceleration = 0 the technology firmware.
Effect:
The position control system is deactivated and
the drive is decelerated via the "deceleration
time during errors" (machine data 43).
A149 Internal error in the technology software.
Distance to go negative Effect:
The position control system is deactivated and
the drive is decelerated via the "deceleration
time during errors" (machine data 43).
Siemens AG 6SE7087-7KN50
SIMOVERT MASTERDRIVES Operating Instructions
Counter-measure
-Check and correct the machine data.
-Optimize the position controller or speed
controller.
-Check the mechanical system.
The "digital input" for "disable actual value"
can only be actuated when the axis is
stationary.
Move the axis in front of the target position in
setup mode before continuing.
This fault should not normally occur. It is used
as an emergency stop feature for the
technology software.
Replace the hardware (M7; MCT).
This fault should not normally occur. It is used
as an emergency stop feature for the
technology software.
Faults and Alarms
12-23