Siemens SIMATIC S7-1500 Function Manual page 383

Technology alarm 531
Alarm reaction: Remove enable
Restart: See "Restart" column
Alarm text
Positive HW limit switch reached.
Negative HW limit switch reached.
Incorrect traverse direction with active hardware limit switch
Hardware limit switch polarity is reversed, axis cannot be
freed
Both hardware limit switches are active, axis cannot be freed
Technology alarm 533
Alarm reaction: Stop with maximum dynamic values
Restart: Not required
Alarm text
Software limit switch reached.
Negative
Positive
S7-1500 Motion Control V13 Update 3
Function Manual, 07/2014, A5E03879256-AC
Solution
Acknowledge the alarm.
Movements in the negative direction are al-
lowed after acknowledgment.
Acknowledge the alarm. Movements in the
positive direction are allowed after acknowl-
edgment.
The programmed motion direction is disabled
due to the active hardware limit switch. Retract
the axis in the opposite direction.
Check the mechanical configuration of the
hardware limit switch.
Check the mechanical configuration of the
hardware limit switch.
Solution
.The software limit switch has been approached from an
ongoing movement.
Acknowledge the alarm.
Move the axis in the positive direction away from the
software limit switch.
The software limit switch has been approached from an
ongoing movement. Acknowledge the alarm. Move the
axis in the negative direction away from the software
limit switch.
Appendix
A.4 Technology alarms
Restart
-
-
-
X
X
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