Development and production of systems for measurement and control
6.5. Events setting
Events captured by PLA44 are fully adjustable by the parameters described in the list beneath.
Parameter
Description
Factory setting
Setting range
Reference
Reference voltage level type
Udin
Udin / Sliding
Pre Samples
Number of recorded half periods Urms1/2 (10ms = 1) before event
10
0 ... 4000
Post Samples
Number of recorded half periods Urms1/2 (10ms = 1) after event
150
0 ... 4000
Over-voltage
►
Threshold
110%
100 ... 500%
Hysteresis
5%
1 ... 20%
Under-voltage
►
Threshold
90%
1 ... 100%
Hysteresis
5%
1 ... 20%
Interruption
►
Threshold
5%
1 ... 100%
Hysteresis
2%
1 ... 20%
Over-current
►
Threshold
110%
100 ... 500%
Hysteresis
5%
1 ... 20%
Memory for capturing the samples of RMS curve is fixed on the maximum of 4000 samples. Definition of number Pre
and Post samples is limited by this maximum samples memory space.
6.6. Transients setting
Transient setting is defined by several parameters listed in table beneath.
Parameter
Description
Factory setting
Setting range
Pre Samples
Number of recorded samples before the transient start
768
0 ... 8000
Post Samples
Number of recorded samples after the transient start
768
0 ... 8000
Delay time
Time delay before next transient recording after transient start
5s
1 ... 20 s
Increase value
Increment value for transient insensitivity after recording start
10V
1 ... 750000 V
Difference
►
Difference activation
No
YES / NO
Threshold difference setting
20%
1 ... 100%
Absolute
►
Absolute activation
NO
YES / NO
Threshold absolute setting
110%
100 ... 500%
Memory for capturing the transients amplitude is fixed on the maximum of 8000 samples. Definition of number Pre
and Post samples is limited by this maximum samples memory space.
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