4.9.5 Application
The function block can be used for any general analog signal protection, either
underprotection or overprotection. The setting range is wide, allowing various
protection schemes for the function. Thus, the absolute hysteresis can be set to a
value that suits the application.
The temperature protection using the RTD sensors can be done using the function
block. The measured temperature can be fed from the RTD sensor to the function
input that detects too high temperatures in the motor bearings or windings, for
example. When the ENA_ADD input is enabled, the threshold value of the internal
comparator is the sum of the Start value Add and Start value settings. This allows a
temporal increase or decrease of the level detector depending on the sign and value
of the Start value Add setting, for example, when the emergency start is activated.
If, for example, Start value is 100, Start value Add is 20 and the ENA_ADD input is
active, the input signal needs to rise above 120 before MAPGAPC operates.
4.9.6 Signals
Table 452: MAPGAPC Input signals
Name
Type Default Description
AI_VALUE FLOAT32 0.0 Analog input value
BLOCK BOOLEAN 0=False Block signal for activating the blocking mode
ENA_ADD BOOLEAN 0=False Enable start added
Table 453: MAPGAPC Output signals
Name
Type Description
OPERATE BOOLEAN Operate
START BOOLEAN Start
4.9.7 Settings
Table 454: MAPGAPC Group settings
Parameter
Values (Range) Unit Step Default Description
Start value -10000.0...10000.0 0.1 0.0 Start value
Start value Add -100.0...100.0 0.1 0.0 Start value Add
Operate delay time 0...200000 ms 100 0 Operate delay time
1YHT530004D05 D Section 4
Protection functions
615 series 535
Technical Manual
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