Sinee EM730 Series - Schematic Diagram of ADT Detection

User Manual of EM730/EM730E Series Inverter
261
of (output frequency detection, output frequency detection - hysteresis,), the output level of the
corresponding function terminal will remain unchanged.
Function
code
Function code name
Parameter description
Unit
Default
setting
Attribute
F15.25
Options of analog level
detection ADT
0:AI1
1
：
AI2
0
○
F15.26
Analog level detection
ADT1
0.00-100.00
%
20.00
●
F15.27
ADT1 hysteresis
0.00 to F15.26 (valid
down in one direction)
%
5.00
●
F15.28
Analog level detection
ADT2
0.00-100.00
%
50.00
●
F15.29
ADT2 hysteresis
0.00 to F15.28 (valid
down in one direction)
%
5.00
●
The analog level detection function is used to detect and monitor the analog input of the
current selected F15.25 channel, and also perform internal operation and external alarm
monitoring. Two detection conditions can be set, but only one analog input channel can be
detected.
Time (s)
Analog AI
%
Detection
level
Time (s)
Output
terminal
Valid
0
0
Invalid Invalid
Hysteresis
Fig. 7-38 Schematic Diagram of ADT Detection
As shown in Fig. 7-38, a valid starting point has been set for the detection level. When the
percentage of analog input is above the detection level after offset processing, the ADT function
will be valid. The conditions for invalid ADT function are dependent on the one-way downward
hysteresis. When the conversion result of analog input decreases to less than the result of