Manual WIP1 GB
Woodward
DOK-TD-WIP1 Rev.F
49
7.2.12 Loss of information due to non-existent or empty battery
If the battery is missing or empty the stored information of the IC can be lost when the relay is switched-off.
The following information is stored:
1.
Date and time
2.
Elapsed energizing time for detecting intermediate faults. (60s/300s).
3. Error
memory
4.
Status word for detecting hardware faults
When the relay is switched on, the following information can be displayed by means of the CT current or by
pressing the key „Display On“.
Display of time and date begins with induction of the CT current.
ISEG____00.00.00
WIP1____00:00:00
The figure indicating the year might perhaps show un-defined values.
In cases the error memory fails and the energizing time has perhaps elapsed, the following text is displayed:
>>Loss_of_Data<<
>>Press_Reset<<<
The information will be indicated until the key <SELECT/RESET> has been pressed for 3s; thereafter the fol-
lowing is displayed:
>>Faultmemory<<<
>>>>cleared<<<<<
If during this process the CT current exceeds a value of 0.5A in one phase, the self-supervising relay ener-
gizes for 1s.
Data is read or processed permanently via the I2 C bus of the processor. Should this communication be dis-
rupted, the following is displayed:
>Internal_Fault<
>>Press_Reset<<<
If during this process the CT current exceeds a value of 0.5A in one phase, the self-supervising relay ener-
gizes for 1s.
If these fault signals can be reset, then it is only an one-off incident and the WIP1 has not to be switched off.
