Liquiphant S FTL70, FTL71
8
Electronic insert FEL54 (AC/DC with relay output)
Power supply
AC voltage: 19 to 253 V, 50/60 Hz or DC voltage: 19 to 55 V
Power consumption: max. 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~ max. 6 A (Ex de 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 (Ex de 4 A) to 30 V DC, 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.
Power supply:
Please note the different
voltage ranges for AC and DC.
AC.
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 "Connectable load" below
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)
*
**
**
1 2
6 7 8
3 4 5
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.
3
5
4
3
5
4
6
8
7
6
8
7
3
5
4
3
5
4
6
8
7
6
8
7
