ABB eVM1 Installation And Service Instructions Manual page 63

The General Start signal is active if at least one protection function is in START status; the
General Trip signal is active if at least one protection function is in TRIP status.
It must be noted that general START and TRIP can become active when the unit is not in Ready
status. The protection Trip will then operate the CB if the conditions for an Open operation are true.
The General Trip signal is latched, i.e. the signal status remains high after all protections exit the
TRIP status. It can be Reset through the dedicated "Trip Signal and Anomaly Reset" input, the
Reset pushbutton on the Panel HMI or from Configuration Tool by the Reset pushbutton in the
Monitoring Tab.
General trip latched signal indicates the CB has been opened by a protection intervention
because a fault condition has been detected. Re-closing of the CB is not allowed until Reset
(see Close allowed in Trip status for exceptions).If no Reset means are available, pushing
the local CB HMI opening pushbutton for 5s resets the trip signal. Remember that a re-close
on network faulty condition is then possible.
Interlock Output 1 and 2: Interlock Output 1 and Interlock Output 2 are Start signals, and all
enabled protection function can be mapped on these signals on the Logic Configuration Page. In
the example below:
all the active overcurrent protection trip signals are combined to generate the general trip Protection
Trip 1 signal while general start Protection Start 1 is not used;
the start signals of all the active earth fault protections are combined to generate the general
start Protection Start 2 signal; the relative trip signals are combined to generate the general trip
Protection Trip 2 signal.
Blocking Rotor protection Start and Motor Start protection Start are mapped on the generic
Interlock Output 1 and Interlock Output 2.
Fig. 52
Warning!
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