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Parameters
6.3 "Ground fault detection" parameter
6.3
"Ground fault detection" parameter
"Ground fault detection" parameter
The "Ground fault detection" parameter enables detection of a "ground fault". If the "Ground
fault detection" parameter is enabled, the relays trip instantaneously in the event of a ground
fault.
The table below shows the values for the "Ground fault detection" parameter.
Table 6-2
Value
0
1
The "Ground fault detection" parameter can only be modified via IO‑Link if no ground fault has
been detected. It cannot be adjusted at the device.
Tripping characteristic
The following information refers to sinusoidal fault currents of 50/60 Hz. With a motor current
between 0.3 and 2 times the rated operational current I
current that is 30% of the rated operational current. With a motor current between 2 times and
8 times the rated operational current I
the motor current.
The response delay is 0.5 to 1 s.
x I
e
1,2
0,9
0,6
0,3
I
GF
I
trip_GF
Figure 6-1
52
"Ground fault detection" parameter
Description
Ground fault detection: Disable
Ground fault detection: Enable
Tripping area
0,3
1
2
3
4
5
Ground fault current
Tripping current at ground fault
Tripping Area (ground fault protection)
Default setting
Disable
—
, the device trips at a ground fault current that is 15% of
e
I
6
7
8
9
10 x I
e
motor
Equipment Manual, 07/2022, NEB969165602000/RS-AA/003
, the device trips at a ground fault
e
SIRIUS 3RB24 electronic overload relay for IO-Link
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