Electronic Insert Fel54 (Ac/Dc With Relay Output); Power Supply; Electrical Connection; Output Signal - Endress+Hauser Liquiphant M FTL50 Technical Information

Liquiphant M FTL50(H), FTL51(H)

Power supply

Electrical connection

Output signal

Signal on alarm

Connectable load

Endress+Hauser

Electronic insert FEL54 (AC/DC with relay output)

Supply voltage: 19...253 V AC, 50/60 Hz or 19...55 V DC
Power consumption: max. 1.3 W
Reverse polarity protection
Overvoltage protection FEL54: overvoltage category III
Universal current connection with relay output
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
contact on short-circuiting.
Both relay contacts switch simultaneously.
* When jumpered, the relay
output works with NPN logic.
** See below "Connectable load"
= relay energised
= relay de-energised
= lit
= unlit
L00-FTL2xxxx-07-05-
xx-xx-001
Output signal on power failure or in the event of damaged sensor: relay de-energised
• Loads switched via 2 floating change-over contacts (DPDT)
• I~ max. 6 A (EEx d 4 A), U~ max. 253 V AC; P~ max. 1500 VA, cos ϕ = 1, P~ max. 750 VA, cos ϕ > 0.7
• I% max. 6 A (EEx d 4 A) to 30 V, I% max. 0.2 A to 125 V
• When connecting a low-voltage circuit with double isolation according to IEC 1010 the following applies:
total of voltages of relay output and power supply max. 300 V
1 2
0.5 A
L1 N
L+ L–
U~ 19...253 V AC, 50/60 Hz
U– 19... 55 V DC ...
Safety mode Level
Max.
Min.
FEL54
3 4 5 6 7 8
*
NO C NC NO C NC
a u r a u r
PE
** **
(Ground)
L00-FTL5xxxx-04-05-xx-xx-002
Output signal LEDs
green
3 4 5 6 7 8
3 4 5 6 7 8
3 4 5 6 7 8
3 4 5 6 7 8
L00-FTL5xxxx-04-05-xx-xx-005
red
11