Connecting The Electronic Insert Fei52 (Dc Pnp) - Endress+Hauser Liquicap M FTI51 Operating Instructions Manual

Liquicap M FTI51, FTI52
Endress+Hauser
4.4

Connecting the electronic insert FEI52 (DC PNP)

The three-wire DC connection should, wherever possible, be connected as follows:
• To programmable logic controllers (PLCs),
• to DI modules in accordance with EN 61131-2
A positive signal is present at the switch output of the electronic system (PNP).
Power supply
Supply voltage: 10 to 55 V DC
Ripple: max. 1.7 V; 0 to 400 Hz
Current consumption: < 20 mA
Power consumption without load: max. 0.9 W
Power consumption with full load (350 mA): 1.6 W
Reverse polarity protection: yes
Separation voltage: 3.7 kV
overvoltage category II
Signal on alarm
Output signal on power failure or in the event of device failure: I
Connectable load
• Load switched via transistor and separate PNP connection, max. 55 V
• Load current max. 350 mA (cyclical overload and short-circuit protection)
• Residual current < 100 μA (with transistor blocked)
• Capacitance load max. 0.5 μF at 55 V; max. 1.0 μF at 24 V
• Residual voltage < 3 V (for transistor switched through)
Connect the FEI52 (DC PNP) as follows:
1. Make the connection as shown in the
graphic.
2. Turn the cable gland until tight.
3. Set the function switch to position 1
(operation).
!
Note!
Do not switch on the supply voltage until you
have familiarized yourself with the device
functions as described on  ? 38 "Operation".
This will ensure that you do not accidentally
trigger any processes by switching on the
supply voltage.
4. Switch on the supply voltage.
* R = External load (I
max.
DC)
350 mA, U 55 V
max
< 100 μA
R
1 2 3
(+)
F
0.5A
R
–
L+ L–
U – 10...55 V (DC)
...
Wiring
TI418F42
31