Teach Mode - Festo SFAM Operating Instructions Manual

SFAM
5.6

TEACH mode

Note
The process is the same for teaching the switching outputs Out A (A button) and Out B
(B button). In the following, the process is described using the switching output Out A.
Fig. 7: TEACH mode
In TEACH-mode the switch points for the flow monitoring can be set up.
1. Before teaching in the EDIT mode, select the desired switching function (threshold- value or window
comparator) chapter 5.5. EDIT mode.
Threshold comparator
The (taught) switching point is
derived from the average value of
both measurement values
SP = 1/2 (Flow 1 + Flow 2)
Special case: SP = Flow 1 = Flow 2
Tab. 10: Set switch variable
58
Window comparator
The taught switching window is derived from the measurement
values:
SP.Lo = Flow 1
SP.Hi = Flow 2
Festo – SFAM – 1103a English