Fault Record Events; Maintenance Events; Figure 124: Fault Recorder Stop Conditions - GE P642 Technical Manual

P64x
Bit no. Bit Mask (hex)
23 0x00800000
24 0x01000000
25 0x02000000
26 0x04000000
27 0x08000000
28 0x10000000
29 0x20000000
30 0x40000000
31 0x80000000
2.1.4

FAULT RECORD EVENTS

An event record is created for every fault the IED detects. This is also known as a fault record.
The event type description shown in the Event Text cell for this type of event is always Fault Recorded.
The IED contains a separate register containing the latest fault records. This provides a convenient way of viewing
the latest fault records and saves searching through the event log. You access these fault records using the Select
Fault setting, where fault number 0 is the latest fault.
A fault record is triggered by the Fault REC TRIG signal DDB, which is assigned in the PSL. The fault recorder
records the values of all parameters associated with the fault for the duration of the fault. These parameters are
stored in separate Courier cells, which become visible depending on the type of fault.
The fault recorder stops recording only when:
The Start signal is reset AND the undercurrent is ON OR the Trip signal is reset, as shown below:
Start signal resets
Undercurrent is ON
Trip signal resets
Fault recorder trigger
V01234

Figure 124: Fault recorder stop conditions

The event is logged as soon as the fault recorder stops. The time stamp assigned to the fault corresponds to the
start of the fault. The timestamp assigned to the fault record event corresponds to the time when the fault
recorder stops.
Note:
We recommend that you do not set the triggering contact to latching. This is because if you use a latching contact, the fault
record would not be generated until the contact has been fully reset.
2.1.5

MAINTENANCE EVENTS

Internal failures detected by the self-test procedures are logged as maintenance records. Maintenance records are
special types of standard events.
The event type description shown in the Event Text cell for this type of event is always Maint Recorded.
The Event Value cell also provides a unique binary code.
P64x-TM-EN-1.3
User Alarm 24 (0=Self-reset, 1=Manual reset)
User Alarm 25 (0=Self-reset, 1=Manual reset)
User Alarm 26 (0=Self-reset, 1=Manual reset)
User Alarm 27 (0=Self-reset, 1=Manual reset)
User Alarm 28 (0=Self-reset, 1=Manual reset)
User Alarm 29 (0=Self-reset, 1=Manual reset)
User Alarm 30 (0=Self-reset, 1=Manual reset)
User Alarm 31 (0=Self-reset, 1=Manual reset)
User Alarm 32 (0=Self-reset, 1=Manual reset)
1
Chapter 13 - Monitoring and Control
Alarm Description
&
Fault recorder stops recording
271