Proface PS4800 - 19 Panel PC" - Manual (Page 70)

PS-4000B Series User Manual
70
Marine Certification Connection
If the product is used in an environment requiring marine certification, a noise filter
must be in the power line.The noise filter must be ordered in addition to the product
using the reference PFXZFTPNDC1.
Possible Connections
Connection to a Floating (Ungrounded) DC Power System:
Some specific applications require the use of a floating (ungrounded) power system.
The characteristics of such as system, are as follows:
z The 0 Vdc power line and Functional Ground (FG) are connected internally.
z The 24 Vdc power line is isolated from the FG and from the outputs. The dielectric
strength for these are:
z Primary/Secondary: 1000 Vac
z Primary/Ground: 1000 Vac
Connection to a Ground-Referenced DC Power System:
Q : Main Power Contact
KM : Line contacts
(1) : Residual Current Detector for detecting grounding faults
(2) : PS-B unit
+
-
-
+
-
+
-
+
Low voltage
AC network
Battery
charger
Battery
Isolation
controller
Floating 24 Vdc network
- 0 Vdc
+ 24 Vdc
PS-B unit
100 - 240 Vac network
L
N
G
Q
KM
+ 24 Vdc
- +
1
1
2
+
-
PS-B unit