P
AGE
8
OF
15
DGF7 Display
reference
manual, rev. 1, feb 22, 2022
Ground
Fault
Systems
B.V.
4.
C
ONNECTIONS
AND
PRECAUTIONS
Please consult the following checklist when applying the DGF7 Display.
1.
Place the DGF7 Display on the door or front panel of the clean dry enclosure that accommodates the
DGF7-3 G/F Protection Unit it is connected to. The panel cut-out is a rectangle measuring 85 mm
vertically, and 70 mm horizontally. Use the U-shaped mounting bracket coming with the unit to
clamp it onto the panel.
2.
The two connections to the DGF7 Display are by means of screw clamp pull-apart terminals.
Terminals will accept 0,5-2,5 mm
2
, 20-14 AWG solid or stranded conductors. The user may want to
identify the following terminals as indicated on the display’s product label:
S1 for connecting the datalink from the DGF7-3 (Signal plus 5V)
C
for connecting the datalink from the DGF7-3 (Common)
3.
For good EMC behaviour it is important (as in any installation) to run all wiring, especially if
unshielded, close along the chassis or in metal ducts, avoiding excess lengths.
4.
If the distance between the Display and the DGF7-3 exceeds 1 m, shielded cable is recommended.
The shield must be connected to chassis ground by means of a clamp, at the DGF7-3 side, where
the FB terminal is bonded to chassis ground. From the clamp to the DGF7-3 terminals the wires can
be left unshielded.
