Woodward HighPROTEC - Legend for Wiring Diagrams

Installation and Connection
Legend for Wiring Diagrams
In this legend designations of various device types are listed, e. g. transformer protection, motor protection,
generator protection, etc. Therefor it can occur that you will not find each designation on the wiring diagram of your
device.
Designation Meaning
FE Connection of functional earth
Power Supply Connection for auxiliary power supply
I L1 Phase current input L1
I L2 Phase current input L2
I L3 Phase current input L3
IG Earth current input IG
I L1 W1 Phase current input L1, winding side 1
I L2 W1 Phase current input L2, winding side 1
I L3 W1 Phase current input L3, winding side 1
I G W1 Earth current input IG, winding side 1
I L1 W2 Phase current input L1, winding side 2
I L2 W2 Phase current input L2, winding side 2
I L3 W2 Phase current input L3, winding side 2
I G W2 Earth current input IG, winding side 2
V L1 Phase voltage L1
V L2 Phase voltage L2
V L3 Phase voltage L3
V 12 Phase to phase voltage V 12
V 23 Phase to phase voltage V 23
V 31 Phase to phase voltage V 31
V X Forth voltage measuring input for measuring residual
voltage or for Synchro-check
BO Contact output, change over contact
NO Contact output, normally open
DI Digital input
COM Common connection of digital inputs
Out+ Analog output + (0/4...20 mA or 0...10 V)
IN- Analog input + (0/4...20 mA or 0...10 V)
N.C. Not connected
DO NOT USE Do not use
SC Self supervision contact
GND Ground
35 MCDGV4 DOK-HB-MCDGV4-2E