Protection; Control; Test; Service Page - ABB REF 542plus Operator's Manual

1MRS755869
20.3.
20.4.
20.5.
20.6.
Multifunction Protection and Switchgear Control Unit
Operator's manual
Reset alarm: can only be reset, if there is no active alarm present anymore. An
attempt to reset an alarm caused for example by an interrupted open coil is
impossible as long as the coil is not replaced.
Reset max. values: this sub menu resets the maximum and mean current values in
the observation period. Also the sum of switched off current is reset from here.
Reset is only possible in Local or Local & Remote modes.
Reset energy values: all the energy values (active, reactive, apparent) are reset from
here. Reset is only possible in Local or Local & Remote modes.
Reset CB cycles: a circuit breaker cycle is a close operation and the subsequent open
operation. The unit sums the cycles. This cycle number is reset from here. Reset is
only possible in Local or Local & Remote modes.
Reset fault recorder: the fault recorder data is cleared from here. Reset is only
possible in Local or Set Local modes.
Reset events: the events are cleared from here, if the mode is in Set Local.
Reset counters: the unit working hours are reset from here. Reset is only possible in
Local or Local & Remote modes.

Protection

The parameter of the Protection submenus, Active set page and Protection, can only
be changed in mode Set Local by applying the protection electronic key.

Control

The parameter of the Control submenus can only be changed in mode Set Local by
applying the protection electronic key.

Test

The test of the primary object can only be performed in local mode.

Service page

The service page menu is composed of several submenus. Browse through the
submenus with UP
selected submenu.
and DOWN buttons. Press ENTER
REF 542plus REF 542plus
to enter the
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