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SINUS PENTA
PROGRAMMING GUIDE
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46.4. Keeping Fluid Level Constant (Example)
Mains
Tank
Fuse
Sensor
Level
4-20mA
Counts
time
Figure 73: Keeping fluid level constant (Example)
Suppose that the maximum level in the tank is to be kept at 50% and that a 4–20mA level probe is used, with an output
of 4mA for the min. level and 20mA for the max. level. The PID reference is sent from keypad, while the probe feedback
is sent to AIN2/PTC analog input, which is configured as follows:
The reference shall be saved from keypad, thus avoiding setting it up again when the drive is shut off.