Endress+Hauser Liquiphant FTL51B - Page 34

Operation options Liquiphant FTL51B
34 Endress+Hauser
FEL64, FEL64DC switching behavior and signaling
1.
2.
>1 s
3.
MAX
MIN
YE
GNRD
YE
GN
RD
3
4
5
6
7
8
3
4
5
6
7
8
3
4
5
6
7
8
3
4
5
6
7
8
3
4
5
6
7
8
3
4
5
6
7
8
A
A0039212
 39 FEL64, FEL64DC switching behavior and signaling
A After the test button is pressed, the relay is de-energized for at least 10 seconds even if the button is pressed
for < 10 seconds. If the test button is pressed for > 10 seconds, the relay remains de-energized until the test
button is released. The relay is then energized again.
FEL67 switching behaviour and signaling
A distinction must be made between MAX and MIN operating modes in the case of
the FEL67 electronic insert!
1.
2.
>1 s
3.
MAX
YE
GNRD
YE
GN
RD
150 Hz
1
2
L+ L-
50 Hz
1
2
L+
L-
50 Hz
1
2
L+
L-
50 Hz
1
2
L+
L-
50 Hz
1
2
L+ L-
A
1
2
L+ L-
A0039213
 40 FEL67 MAX switching behaviour and signaling
A After the test button is pressed, the output frequency is switched off for at least 10 seconds, 50 Hz, even if the
button is pressed for < 10 seconds. If the button is pressed for > 10 seconds, the output frequency remains at
50 Hz until the test button is released. The output frequency then returns to 150 Hz once again.