Siemens SIMATIC S7-1500 Function Manual page 377

Technology alarm 307
Alarm reaction: Stop with maximum dynamic values
Restart: Not required
Alarm text
The numeric value range of the position was reached.
Negative
Positive
Technology alarm 308
Alarm reaction: Remove enable
Restart: Not required
Alarm text
The numeric value range of the position was exceeded.
Negative
Positive
Technology alarm 321
Alarm reaction: Stop with emergency stop ramp
Restart: Not required
Alarm text
Axis is not homed.
Technology alarm 322
Alarm reaction: No reaction
Restart: Not required
Alarm text
Restart not performed.
The technology object is not ready for restart.
Condition for restart of the technology object is not satisfied
(e.g. technology object must be disabled).
S7-1500 Motion Control V13 Update 3
Function Manual, 07/2014, A5E03879256-AC
Solution
Enable the "Modulo" setting for the technology object.
Enable the "Modulo" setting for the technology object.
Solution
Enable the "Modulo" setting for the technology object.
Solution
To perform absolute positioning, you need to home the
technology object.
Solution
Download the project again.
Disable the technology object.
Appendix
A.4 Technology alarms
377