Maintenance Indicators
Time of Use Counter
The time of use counter reports the time of use of the circuit breaker. The time of use is written in the EEPROM every hour. If the time of use counter reaches the maximum value 4 294 967 295 and a new time of use event occurs, then the counter is reset to 0.
A read request of 2 registers is necessary to read the time of use counter.
|
Address |
Register |
RW |
X |
Unit |
Type |
Range |
A/E |
Description |
|---|---|---|---|---|---|---|---|---|
|
0x749A–0x749B |
29851–29852 |
R |
1 |
Hour |
INT32U |
0–4 294 967 295 |
A/E |
Time of use counter |
Rate of Wear Counter
The rate of wear counter reports the percentage of the circuit breaker contact use.
|
Address |
Register |
RW |
X |
Unit |
Type |
Range |
A/E |
Description |
|---|---|---|---|---|---|---|---|---|
|
0x749C |
29853 |
R |
1 |
% |
INT16U |
0–32766 |
A/E |
Rate of wear contact 0% = The circuit breaker contact is new. > 100% = The circuit breaker contact must be changed. |
Boot Counter
The boot counter reports the number of cold starts (power-up) and the number of warm starts (software reset of the MicroLogic trip unit).
|
Address |
Register |
RW |
X |
Unit |
Type |
Range |
A/E |
Description |
|---|---|---|---|---|---|---|---|---|
|
0x749D |
29854 |
R |
1 |
– |
INT16U |
0–32766 |
A/E |
Boot counter |
EEPROM Writing Counter
The EEPROM writing counter reports the number of storages of the energy measurement in the EEPROM. The energy measurement is written in the EEPROM every hour. If the EEPROM writing counter reaches the maximum value 4 294 967 295 and a new EEPROM writing event occurs, then the EEPROM writing counter is reset to 0.
|
Address |
Register |
RW |
X |
Unit |
Type |
Range |
A/E |
Description |
|---|---|---|---|---|---|---|---|---|
|
0x749E– 0x749F |
29855– 29856 |
R |
1 |
– |
INT32U |
0–4 294 967 295 |
A/E |
Counter of EEPROM writing |
Load Profile Counters
The load profile counters report the number of hours for each range of current in the MicroLogic trip unit. If the load profile counters reach the maximum value 4 294 967 295 and a new load profile event occurs, then the load profile counters are reset to 0.
A read request of 8 registers is necessary to read the load profile counters.
|
Address |
Register |
RW |
X |
Unit |
Type |
Range |
A/E |
Description |
|---|---|---|---|---|---|---|---|---|
|
0x74B7– 0x74B8 |
29880– 29881 |
R |
1 |
Hour |
INT32U |
0–4 294 967 295 |
A/E |
Hours current was 0‑49% of nominal range |
|
0x74B9– 0x74BA |
29882– 29883 |
R |
1 |
Hour |
INT32U |
0–4 294 967 295 |
A/E |
Hours current was 50‑79% of nominal range |
|
0x74BB– 0x74BC |
29884– 29885 |
R |
1 |
Hour |
INT32U |
0–4 294 967 295 |
A/E |
Hours current was 80‑89% of nominal range |
|
0x74BD– 0x74BE |
29886– 29887 |
R |
1 |
Hour |
INT32U |
0–4 294 967 295 |
A/E |
Hours current was 90‑100% of nominal range |
Temperature Profile Counters
The temperature profile counters report the number of hours for each range of temperature in the MicroLogic trip unit. If the temperature profile counters reach the maximum value 4 294 967 295 and a new temperature profile event occurs, then the temperature profile counters are reset to 0.
A read request of 12 registers is necessary to read the temperature profile counters.
|
Address |
Register |
RW |
X |
Unit |
Type |
Range |
A/E |
Description |
|---|---|---|---|---|---|---|---|---|
|
0x74C1– 0x74C2 |
29890– 29891 |
R |
1 |
Hour |
INT32U |
0–4 294 967 295 |
A/E |
Hours temperature was < -30 °C (-22 °F) |
|
0x74C3– 0x74C4 |
29892– 29893 |
R |
1 |
Hour |
INT32U |
0–4 294 967 295 |
A/E |
Hours temperature was in the -30–+59 °C range (22–1 38.2 °F) |
|
0x74C5– 0x74C6 |
29894– 29895 |
R |
1 |
Hour |
INT32U |
0–4 294 967 295 |
A/E |
Hours temperature was in the +60–+74 °C range (140–165.2 °F) |
|
0x74C7– 0x74C8 |
29896– 29897 |
R |
1 |
Hour |
INT32U |
0–4 294 967 295 |
A/E |
Hours temperature was in the +75–+89 °C range (167–192.2 °F) |
|
0x74C9– 0x74CA |
29898– 29899 |
R |
1 |
Hour |
INT32U |
0–4 294 967 295 |
A/E |
Hours temperature was in the +90–+99 °C range (194–210.2 °F) |
|
0x74CB– 0x74CC |
29900– 29901 |
R |
1 |
Hour |
INT32U |
0–4 294 967 295 |
A/E |
Hours temperature was > +100 °C (212 °F) |
Protection Trips Counters
The protection trips counters report the number of protection trips for each type of protection: long-time, short-time, instantaneous, ground-fault, earth-leakage jam, unbalance, long-start, and underload protections.
The protection trips counters stop incrementing when they reach the maximum value 10000.
A read request of 9 registers is necessary to read the protection trips counters.
|
Address |
Register |
RW |
X |
Unit |
Type |
Range |
A/E |
Description |
|---|---|---|---|---|---|---|---|---|
|
0x74D5 |
29910 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Number of long-time protection trips |
|
0x74D6 |
29911 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Number of short-time protection trips |
|
0x74D7 |
29912 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Number of instantaneous protection trips (including integrated instantaneous protection, instantaneous with earth-leakage protection, and reflex protection) |
|
0x74D8 |
29913 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Number of ground-fault protection trips |
|
0x74D9 |
29914 |
R |
1 |
– |
INT16U |
0–10000 |
E |
Number of earth-leakage protection trips |
|
0x74DA |
29915 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Number of jam protection trips |
|
0x74DB |
29916 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Number of unbalance protection trips |
|
0x74DC |
29917 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Number of long-start protection trips |
|
0x74DD |
29918 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Number of underload protection trips |
Alarms Counters
The alarms counters report the number of occurrences of the alarms. When an alarm is configured, the associated counter is set to 0. The alarm counters stop incrementing when they reach the maximum value 10000.
A read request of 13 registers is necessary to read the alarms counters.
|
Address |
Register |
RW |
X |
Unit |
Type |
Range |
A/E |
Description |
|---|---|---|---|---|---|---|---|---|
|
0x74F3 |
29940 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of user-defined alarm 201 |
|
0x74F4 |
29941 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of user-defined alarm 202 |
|
0x74F5 |
29942 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of user-defined alarm 203 |
|
0x74F6 |
29943 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of user-defined alarm 204 |
|
0x74F7 |
29944 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of user-defined alarm 205 |
|
0x74F8 |
29945 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of user-defined alarm 206 |
|
0x74F9 |
29946 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of user-defined alarm 207 |
|
0x74FA |
29947 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of user-defined alarm 208 |
|
0x74FB |
29948 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of user-defined alarm 209 |
|
0x74FC |
29949 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of user-defined alarm 210 |
|
0x74FD |
29950 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of pre-alarm Ir |
|
0x74FE |
29951 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of pre-alarm Ig |
|
0x74FF |
29952 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of pre-alarm IΔn |
Maintenance Operation Counters
The maintenance operation counters report the number of some maintenance operations. The maintenance operation counters stop incrementing when they reach the maximum value 10000.
A read request of 7 registers is necessary to read the maintenance operation counters.
|
Address |
Register |
RW |
X |
Unit |
Type |
Range |
A/E |
Description |
|---|---|---|---|---|---|---|---|---|
|
0x751B |
29980 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of MicroLogic trip unit locking pad activation |
|
0x751C |
29981 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of connections of the UTA maintenance module |
|
0x751D |
29982 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of ground-fault test operation (using MicroLogic keypad only) |
|
0x751E |
29983 |
R |
1 |
– |
INT16U |
0–10000 |
E |
Counter of earth-leakage test operation |
|
0x751F |
29984 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of ZSI (Zone Selective Interlocking) test operation |
|
0x7520 |
29985 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of numerical injection test operation |
|
0x7521 |
29986 |
R |
1 |
– |
INT16U |
0–10000 |
A/E |
Counter of reset Firmware command |