QUINT4-PS/1AC/48DC/5
108476_en_01
PHOENIX CONTACT
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7.4
Block diagram
Figure 7
Block diagram
Key
NFC
P
Out
OVP
C
+
+
-
-
13
14
Rem
SGnd
Out 1
Out 2
active
PFC
-
L
N
(+)
(-)
Symbol
Designation
Surge protection (varistor, gas-filled surge
arrester) with filter
Bridge rectifier
Inrush current limitation
Power factor correction (PFC)
Switching transistor and main transmitter
(electrically isolating)
Secondary rectification and smoothing
Filter
Auxiliary converter (electrically isolating)
active
PFC
Symbol
Designation
Optocoupler (electrically isolating)
Additional regulatory protection against
surge voltage
Relay contact and signal contacts
Microcontroller
NFC interface (Near Field Communication)
Output voltage button
(-) /
(+)
Signal/display LEDs (P
Out
, DC OK)
OVP
13
14
Rem
SGnd
Out 1
Out 2
C
NFC
P
OUT