Pre-Alarms
General Description
The EcoStruxure Power Commission software enables the configuration of the following 2 pre-alarms:
-
long-time protection pre-alarm (PAL Ir)
-
ground-fault protection pre-alarm (PAL Ig)
Each alarm has a corresponding alarm code:
-
PAL Ir = 1013
-
PAL Ig = 1014
Each alarm has a priority level that manages the alarm display on the FDM121 display:
-
no priority = N/A (not affected)
-
low priority = 1. No alarm display on the FDM121 display.
-
medium priority = 2. The FDM121 display LED is steady ON.
-
high priority = 3. The FDM121 display LED blinks and a pop-up screen informs the user that the alarm is active.
Refer to the PowerPact H-, J-, and L-Frame MicroLogic 5 and 6 Trip Units - User Guide Related Documents for more information regarding the relationship between alarm priority and FDM121 display.
The pre-alarms registers describe the settings of the pre-alarms:
|
Address |
Register |
Description |
|---|---|---|
|
0x19F9–0x1A02 |
6650–6659 |
Long-time protection pre-alarm (PAL Ir) |
|
0x1A03–0x1A0C |
6660–6669 |
Ground-fault protection pre-alarm (PAL Ig) |
|
0x1A0D–0x1A16 |
6670–6679 |
Reserved |
Long-Time Protection Pre-Alarm (PAL Ir)
A read request of 10 registers is necessary to read the long-time protection pre-alarm parameters.
|
Address |
Register |
RW |
X |
Unit |
Type |
Range |
A/E |
Description |
|---|---|---|---|---|---|---|---|---|
|
0x19F9 |
6650 |
R |
– |
– |
INT16U |
– |
A/E |
The MSB gives the activity of the alarm: 0 = On, 1 = Off. The factory setting is 0 (On). The LSB gives the priority of the alarm: N/A, 1, 2, or 3. The factory setting is 2 (medium priority). |
|
0x19FA |
6651 |
– |
– |
– |
– |
– |
– |
Reserved |
|
0x19FB |
6652 |
R |
1 |
% |
INT16 |
(1) |
A/E |
% of Ir pick-up value. The factory setting is 90. |
|
0x19FC |
6653 |
– |
– |
– |
– |
– |
– |
Reserved |
|
0x19FD |
6654 |
R |
1 |
s |
INT16U |
1 |
A/E |
Pick-up time delay (fixed to 1 s) |
|
0x19FE |
6655 |
R |
1 |
% |
INT16 |
(1) |
A/E |
% of Ir drop-out value. The factory setting is 85. |
|
0x19FF |
6656 |
– |
– |
– |
– |
– |
– |
Reserved |
|
0x1A00 |
6657 |
R |
1 |
s |
INT16U |
1 |
A/E |
Drop-out time delay (fixed to 1 s) |
|
0x1A01–0x1A02 |
6658– 6659 |
– |
– |
– |
– |
– |
– |
Reserved |
|
(1) For distribution application, the range is 40–100. For motor application, the range is 10–95. |
||||||||
Ground-Fault Protection Pre-Alarm (PAL Ig)
A read request of 10 registers is necessary to read the ground-fault protection pre-alarm parameters.
|
Address |
Register |
RW |
X |
Unit |
Type |
Range |
A/E |
Description |
|---|---|---|---|---|---|---|---|---|
|
0x1A03 |
6660 |
R |
– |
– |
INT16U |
– |
A/E |
The MSB gives the activity of the alarm: 0 = On, 1 = Off. The factory setting is 0 (On). The LSB gives the priority of the alarm: N/A, 1, 2, or 3. The factory setting is 2 (medium priority). |
|
0x1A04 |
6661 |
– |
– |
– |
– |
– |
– |
Reserved |
|
0x1A05 |
6662 |
R |
1 |
% |
INT16 |
40–100 |
A/E |
% of Ig pick-up value. The factory setting is 90. |
|
0x1A06 |
6663 |
– |
– |
– |
– |
– |
– |
Reserved |
|
0x1A07 |
6664 |
R |
1 |
s |
INT16U |
1 |
A/E |
Pick-up time delay (fixed to 1 s) |
|
0x1A08 |
6665 |
R |
1 |
% |
INT16 |
40–100 |
A/E |
% of Ig drop-out value. The factory setting is 85. |
|
0x1A09 |
6666 |
– |
– |
– |
– |
– |
– |
Reserved |
|
0x1A0A |
6667 |
R |
1 |
s |
INT16U |
1 |
A/E |
Drop-out time delay (fixed to 1 s) |
|
0x1A0B–0x1A0C |
6668–6669 |
– |
– |
– |
– |
– |
– |
Reserved |