REG 316*4 1MRB520049-Uen / Rev. C ABB Switzerland Ltd
2-5
· resetting of error messages resulting from defects detected
by the self-monitoring or diagnostic functions (short press)
· resetting the entire protection (warm start, press for at least
ten seconds) following the detection of a serious defect by
the self-monitoring or diagnostic functions.
These control operations can also be executed using the local
control unit on the front of the device. Should the latter fail, the
reset button can be pressed using a suitable implement through
the hole in the frontplate.
2.2.5. PC connection
In order to set the various parameters, read events and meas-
urements of system voltages and currents and also for diagnos-
tic and maintenance purposes, a personal computer (PC) must
be connected to the optical serial interface (Fig. 12.2).
2.2.6. Test facilities
A RE. 316*4 protection can be tested using a test set Type
XS92b.
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