Connecting The Electronic Insert Fei51 (Ac 2-Wire) - Endress+Hauser Liquicap M FTI51 Operating Instructions Manual

Wiring
!
30
4.3

Connecting the electronic insert FEI51 (AC 2-wire)

Note!
Connect in series with an external load.
Power supply
Supply voltage: 19 to 253 V AC
Power consumption: < 1.5 W
Residual current consumption: < 3.8 mA
Short-circuit protection
Overvoltage category II
Signal on alarm
Output signal on power failure or in the event of damage to the sensor: < 3.8 mA
Connectable load
• For relays with a minimum holding power or rated power > 2.5 VA at 253 V AC (10 mA) or
> 0.5 VA at 24 V AC (20 mA)
• Relays with a lower holding power or rated power can be operated by means of an RC
module connected in parallel.
• For relays with a maximum holding power or rated power < 89 VA at 253 V AC or
< 8.4 VA at 24 V AC
• Voltage drop across FEI51 max. 12 V
• Residual current with blocked thyristor max. 3.8 mA
• Load switched directly into the power supply circuit via the thyristor.
Connect the FEI51 (AC 2-wire) as follows:
1. Make the connection as shown in the
graphic.
2. Tighten the cable gland.
3. Set the function switch (5) to position 1
(operation).
!
Note!
Do not switch on the supply voltage until
you have familiarized yourself with the
device functions as described in Section
5 "Operation". This will ensure that you
do not accidentally trigger any processes
by switching on the supply voltage.
4. Switch on the supply voltage.
Liquicap M FTI51, FTI52
1 2
*
min.
19 V
1 A
*
R
L1 N N PE
(Masse)
U~ max. 253 V AC
50/60 Hz
External load R!
L00-FMI5xxxx-06-05-xx-en-071
Endress+Hauser