P
AGE
14
OF
15
DGF7 Display
reference
manual, rev. 1, feb 22, 2022
Ground
Fault
Systems
B.V.
7.4
Figure
1 -
Typical
Field
Connection
using
DGF7-3
with
built-in
core
balance,
remote
reset
and
DGF7
Display.
Страница 1: ...DGF7 Display reference manual Ground Fault Systems B V Rigtersbleek Aalten 4B15 7521 RB Enschede The Netherlands www groundfaultsystems com info groundfaultsystems com Tel 31 53 4318628 CofC 55400914...
Страница 2: ...2 Datalink error code 6 3 PARAMETER SETTING 7 3 1 Display Settings 7 3 2 Display setup procedure 7 4 CONNECTIONS AND PRECAUTIONS 8 5 TECHNICAL SPECIFICATIONS 9 5 1 Serial datalink circuit 9 5 2 Termi...
Страница 3: ...arameters inside the display itself that modify its behaviour The DGF7 Display has settable parameters to enable the user to tailor the DGF7 Display to their needs Relay Test on off G F Current Displa...
Страница 4: ...xceeds the system s measuring range the display shows Out meaning Out of range Depending on various internal variables the maximum value that can be represented whether in relative or absolute format...
Страница 5: ...ful when pulse tripping a breaker that also supplies control voltage to the G F protection system Especially when several systems control one single breaker with their relay contacts in parallel which...
Страница 6: ...is already tripped the display will show a 1 5 seconds message See chapter 3 for the parameter settings 2 1 7 LCD test The LCD panel can be tested at all times by keeping the RESET button pressed long...
Страница 7: ...p Level that is set on the DGF7 3 dipswitches please check the box on the front panel 1 1 Absolute mode G F Current is displayed in A or kA as is applicable If a 5000 5 interposing CT is used check th...
Страница 8: ...rt terminals Terminals will accept 0 5 2 5 mm2 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 connectin...
Страница 9: ...ollution degree 3 over voltage category III Insulation stripping length 7 mm Torque 0 4 0 6 Nm Field wiring 0 5 2 5 mm2 VDE 20 14 AWG UL CSA Cu solid or stranded 5 3 Environment Operating temperature...
Страница 10: ...4 3 Radiated electromagnetic field immunity EN 61000 4 4 Electromagnetic compatibility EMC for industrial process measurement and control equipment Part 4 4 Electrical fast transient burst immunity EN...
Страница 11: ...L R R R L R R R 0 030 A 0 100 A 0 250 A 0 37 A 0 50 A 1 00 A 3 00 A 0 060 A 4 5 6 Ground Fault Trip Delay time and Trip Inhibit L L L L L R L R L L R R R L L R L R R R L R R R 20 ms without Trip Inhi...
Страница 12: ...A 0 37 A 0 37 kA 0 74 A 1 48 A 7 4 A 37 A 0 50 A 0 50 A 0 50 kA 1 00 A 2 00 A 10 0 A 50 A 1 00 A 1 00 A 1 00 kA 2 00 A 4 0 A 20 0 A 100 A 3 00 A 3 00 A 3 00 kA 6 0 A 12 0 A 60 A 300 A 0 060 A 0 060 A...
Страница 13: ...ream device failed to trip The DGF7 3 then tripped as a last resort The contactor should be inspected since its contacts may well be damaged 04 EXTERNAL CS OPEN CIRCUIT The connection to an external C...
Страница 14: ...PAGE 14 OF 15 DGF7 Display reference manual rev 1 feb 22 2022 Ground Fault Systems B V 7 4 Figure 1 Typical Field Connection using DGF7 3 with built in core balance remote reset and DGF7 Display...
Страница 15: ...PAGE 15 OF 15 DGF7 Display reference manual rev 1 feb 22 2022 Ground Fault Systems B V 7 5 Figure 2 Dimensions DGF7 Display...
