Endress+Hauser Liquiphant M FTL51C - Electronic Insert FEL54 (AC;DC with Relay Output); Power Supply; Electrical Connection; Output Signal

Liquiphant M FTL51C
Endress+Hauser 9
Electronic insert FEL54 (AC/DC with relay output)
Power supply Supply voltage: AC 19 to 253 V, 50/60 Hz or DC 19 to 55 V
Power consumption:
 1.3 W
Reverse polarity protection
Overvoltage protection FEL54: overvoltage category III
Electrical connection Universal current connection with relay output
Output signal
Signal on alarm Output signal on power failure or in the event of damaged sensor: relay de-energized
Connectable load • Loads switched via 2 floating change-over contacts (DPDT)
•I~
 6 A (Ex de 4 A), U~  AC 253 V; P~  1500 VA, cos  = 1, P~  750 VA, cos  > 0.7
•I%
 6 A (Ex de 4 A) to DC 30 V , I%  0.2 A to 125 V
• When connecting a low-voltage circuit with double insulation according to IEC 1010, the following
applies: the sum of the voltages of the relay output and power supply is  300 V
• The electronic insert FEL52 DC-PNP is preferred for low DC load currents (e.g. when connecting to
a PLC)
• Relay contact material: silver/nickel AgNi 90/10
Power supply:
Please note the different
voltage ranges for AC and
DC.
Output:
When connecting an instrument with
high inductance, provide a spark arrester
to protect the relay contact.
A fine-wire fuse (depending on the
load connected) protects the relay
on short-circuiting.
Both relay contacts switch simultaneously.
* When jumpered, the relay
output works with NPN logic.
** See "Connectable load"
L00-FTL5xxxx-04-05-xx-xx-002
L1
L+
a
NO
a
NO
u
C
u
C
N
L–
r
NC
r
NC
0.5 A
PE
(Ground)
*
** **
12 678345
FEL54
U~ 19…253 V AC, 50/60 Hz
U– 19… 55 V DC
...
Safety mode Level Output signal LEDs
green red
L00-FTL2xxxx-07-05-
xx-xx-001
= relay energized
= relay de-energized
= lit
= unlit
L00-FTL5xxxx-04-05-xx-xx-005
MAX
MIN
354
354
687
687
354
354
687
687