Endress+Hauser Liquiphant FTL51B Operating Instructions Manual page 23

Liquiphant FTL51B
Endress+Hauser
Terminal assignment
COM MAX >0,7
>0,5
MIN
1
3
0.5 A
PE
L+
A Connection wiring with terminals
B Connection wiring with M12 connector in housing
Behavior of the switch output and signalling
MAX
MIN
The red LED flashes in the event of an overload or short-circuit. The red LED is lit
permanently (steady red) in the event of an alarm.
MAX DIP switch for setting the MAX safety mode →  37
MIN DIP switch for setting the MIN safety mode →  37
RD LED, red, for warning or alarm
YE LED, yellow, switch status
GN LED, green, operational status (device on)
I Load current (switched through)
L
K
U = 10...55 V DC
Imax. 350 mA
I max: 350 mA
I
L
1
Umax. 55 V
L+ L- 3
1 2 3 A
K
L-
RD YE GN
L+ 1
L+ 1
L+ 1
L+ 1
L+ 1
Electrical connection
L+ L-
M12
4 3
4 3 1
1 2
L+ L-
I
L
3 (L–)
U
R
<100 µA
3 (L–)
R
+
I
L
(L–)
3
U
R
<100 µA
3 (L–)
R
<100 µA
(L–)
3
3
B
R
A0036061
A0033508
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