Eaton Power Xpert PXR 10, Руководство пользователя

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10 Industrial Ethernet Communication Adapter Modules (ECAM)
10.3 Profinet
PXR Electronic trip unit 01/21 MN012005EN www.eaton.com
149
16 Settings - delay
time of the
ground-fault
release (t
g
)
R/W Unsigned Settings - delay time of the ground-fault release
(t
g
= x [ms])
NZM PXR20: R
NZM PXR25: R/W
NZM PXR20:
0: 0 (no delay)
2: 20
10: 100
30: 300
50: 500
75: 750
100: 1000
The following applies to the NZM PXR25:
The value range [0 - 100] corresponds to 0 to
1,000 ms, respectively, in increments of 10 ms (10
for values)
ms
17 Thermal memory
(ground fault
protection) R/W Encoded Activates/deactivates the thermal memory of the
ground-fault protection. Recommended for repe-
titive testing only. Among other things, the
thermal memory protects the switch against over-
heating during repeated overloads.
Note:
Must be reactivated after testing!
0: switched off
1: switched on
–
18 Settings - neutral
protection R/W Unsigned Adjusts the neutral protection of an NZM PXR25
breaker with a “/VAR” variably adjustable neutral
conductor
0
≙ 0 %
60 ≙ 60 %
100 ≙ 100 % (default setting)
The lower setting affects the LSI protection func-
tions of the switch, but not the ground-fault
protection function (“G”).
Note:
L = long delay (= overload protection I
r
)
S = short delay (= short-time delayed short-circuit
protection I
sd
)
I = instantaneous (= instantaneous shortcircuit
protection I
i
)
G = ground fault (= ground fault protection I
g
)
%
19 Load alarm 2 R/W Unsigned Load alarm 2 level (AL2 = x % x I
r
): 50 - 120 (in
increments of 1)
%
1A Pre-alarm of the
groundfault
release R/W If the ground-fault protection function is set to
“trip” (see register 403017), a pre-alarm can also
be set.
(GF
pre-alarm
= x % x I
g
)
50 - 100 (in increments of 5 %)
%
Index
(Hex) Bit field Mask
field Setpoint name R/W Format Description or value Unit