Woodward
Manual MRG3 GB
60
TD_MRG3_09.08_GB_Rev.New
5.10.9 Reset
All relays have the following four possibilities to reset the display of the unit and the output relay at
jumper position J3=ON. (see also the description MR – Digital Multifunctional relay in chapter: 4.2.1
Function of the output relays
Manual Reset
•
By pressing the push button <SELECT/RESET> for some time (about 3 s)
External Reset
•
Through applying auxiliary voltage to C8/D8
Software Reset
•
The software reset has the same effect as the <SELECT/RESET> push button (see also
communication protocol of RS485 interface)
Automatic Reset
•
At each excitation of a protection function
The display can only be reset, when a pickup protection element is not present anymore (otherwise
"TRIP" remains in display).During resetting of the display the parameters are not affected.
5.10.10
Delete of disturbance records
By repeated setting of the parameter “number of re-corded events”, it is possible to delete data of
the disturbance recorder. The LED FR will then expire (refer to chapter 5.8.2).
Alternatively, it is also possible to clear the memory space of the disturbance recorder by means of
the software "HTL/PL-Soft4".
