BIFFI F01-2000 - Page 68

September 2021
Installation, Operation and Maintenance Manual
VCIOM-01249-EN Rev. 0
62
Set-Up Routines
Section 9: Set-Up Routines
Figure 45
100%
100%
0%
0%
INPUT 4 - 20 mA
POLARITY: 4 mA = CL
Input request
20 mA
4 mA
Position %
20 mA
4 mA
INPUT 4 - 20 mA
POLARITY: 4 mA = OP
Input request
Position %
The Figure 46 may better clarify the above option:
Example A
With input signal = 4 mA, the position request is 0% and the actuator is driven to close.
With input signal = 20 mA, the position request is 100% and the actuator is driven to open.
With input signal = 12 mA the position request is 50% and the actuator is driven to reach
position 50%.
Example B
With input signal < 8 mA, the position request is 0% and the actuator is driven to close.
With input signal = 16 mA, the position request is 100% and the actuator is driven to open.
With input signal = 12 mA the position request is 50% and the actuator is driven to reach
position 50%.
Example C
With input signal = 4 mA , the position request is 100% and the actuator is driven to open.
With input signal = 20 mA, the position request is 0% and the actuator is driven to close.
With input signal = 12 mA the position request is 50% and the actuator is driven to reach
position 50%.
Example D
With input signal < 8 mA, the position request is 100% and the actuator is driven to open.
With input signal = 16 mA , the position request is 0% and the actuator is driven to close.
With input signal = 12 mA the position request is 50% and the actuator is driven to reach
position 50%.