Universal Current Connection With Relay Output (Electronic Insert Fel64) - Endress+Hauser Liquiphant FTL51B Operating Instructions Manual

Liquiphant FTL51B
Endress+Hauser
Behavior of switch output and signaling
MAX
MIN
 22 Behavior of switch output and signaling, electronic insert FEL62
MAX DIP switch for setting MAX safety mode
MIN DIP switch for setting MIN safety mode
RD LED, red, for warning or alarm
YE LED, yellow, switch status
GN LED, green, operational status, device on
I Load current switched through
L
6.2.3 Universal current connection with relay output (electronic
insert FEL64)
• Switches the loads via 2 potential-free changeover contacts
• Two galvanically isolated change-over contacts (DPDT), both change-over contacts
switch simultaneously
• Functional testing without level change. A functional test can be performed on the
device using the test button on the electronic insert or using the test magnet with the
housing closed.
WARNING
L
In the event of an error, the electronic insert can exceed the limit temperature for
touchable surfaces, resulting in a risk of burns.
‣
Do not touch the electronics in the event of an error!
Supply voltage
U = 19 to 253 V /19 to 55 V
AC
Pay attention to the following as per IEC/EN61010-1: Provide a suitable circuit
breaker for the device, and limit the current to 500 mA, e. g. by installing a 0.5 A fuse
(slow-blow) in the line (not the neutral wire) of the supply circuit.
Power consumption
P < 25 VA,< 1.3 W
Connectable load
Loads switched via 2 potential-free changeover contacts (DPDT)
• I ≤ 6 A (Ex de 4 A), U~ ≤ AC 253 V; P~ ≤ 1 500 VA, cos φ = 1, P~ ≤ 750 VA, cos φ > 0.7
AC
• I ≤ 6 A (Ex de 4 A) to DC 30 V, I DC ≤ 0.2 A to 125 V
DC
RD YE GN
L+ 1
<100 µA
L+ 1
L+ 1
<100 µA
L+ 1
<100 µA
L+ 1
DC
Electrical connection
I
L
(L–)
3
U
K
(L–)
3
K
I
L
3 (L–)
U
K
3 (L–)
K
(L–)
3
K
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