Current); Enable Power_Fault Alarms - gefran GPC Configuration And Programming Manual

3.15. POWER_FAULT alarms (SSR_SHORT, NO_VOLTAGE and NO_CURRENT)
Functional diagram of Power Fault alarms
3.15.1.

Enable POWER_FAULT alarms

Address
Format
Single- Multi-
node node
1684
2708 660 16 bit
4756
The parameter sets the POWER_FAULT alarms: SSR_SHORT (SSR short circuit), NO_VOLTAGE (voltage failure) and NO_CURRENT (cur-
rent failure). Active alarms are identified and set with an index.
The index 0 deactivates all 3 alarms.
Options:
Notes:
Increasing the index by a fixed amount results in the following behaviours:
Index + 32 = POWER_FAULT alarm storage is enabled.
Index + 64 = Current polarity control is disabled (only for inductive loads).
Examples:
Setting index 35 (= 3 + 32) enables SSR_SHORT and NO_VOLTAGE alarms with alarm storage.
Setting index 73 (= 9 + 64), with an inductive load, enables SSR_SHORT and NO_CURRENT alarms without polarity check for current.
Control output value
Ou.P
Filtered CT ammeter
input value at acti-
vated output I.on
Filtered VT voltme-
ter input value
I.VF
GPC-OP
Acronym
menu
05.07.01 M
05.08.01 hd.2 E1
05.09.01 E2
Index SSR_SHORT alarm
on
0
■
1
2
■
3
8
■
9
10
■
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81901 "MSW_GPC-40/600A"_03-2021_ENG_page 72
Enabling
Power Fault
alarms
hd.2
Time filter
dG.F
Update
frequency
dG.t
GF_eXpress menu
Description
MainMenu → M → Alarms →
PF alarms → hd.2_1
MainMenu → E1 → Alarms →
PF alarms → hd.2_2
MainMenu → E2 → Alarms →
PF alarms → hd.2_3
NO_VOLTAGE NO_CURRENT
alarm on
■
■
■
■
Alarm status
SSR_SHORT
Alarm status
NO_VOLTAGE
Alarm status
NO_CURRENT
Unsigned
■
R/W
Short
alarm on
■
■
■
■
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