Lenze EVF9383 - Manual (Page 162)

Configuration
2−154
l
EDSVF9383V−EXT EN 2.0
2.4.54 Sample & Hold (S&H)
This FB can accept analog signals and save them non−volatile. The saved value is also available after
mains disconnection.
C0572
S&H1
S&H1−OUT S&H1−IN
C0573
S&H1−LOAD
C0570
C0571
S&H
Fig. 2−132 Sample & Hold (S&H1)
Signal Source Note
Name Type DIS DIS format CFG List Lenze
S&H1−IN a C0572 dec [%] C0570 1 1000
S&H1−LOAD d C0573 bin C0571 2 1000 LOW = save
S&H1−OUT a − − − − −
Function
l With S&H1−LOAD = HIGH the signal at the input S&H1−IN is switched to the output
S&H1−OUT.
l With S&H1−LOAD = LOW the output S&H1−OUT is disconnected from the input S&H1−IN and
outputs the value which was last valid and S&H−OUT outputs the value which was accepted
last.
l Saving before mains disconnection:
– The value which was accepted last is saved non−volatile in the internal memory before the
supply voltage is switched off. When the supply voltage is switched on, the saved value is
loaded into the FB S&H1.