Nel Trip Description - Smartgen HGM9510N User Manual

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NEL TRIP DESCRIPTION

Non-essential Load----NEL is the abbreviation.
The controller can control the NEL1, NEL2 and NEL3 to trip separately. The order of the essentiality is:
NEL3 > NEL2 > NEL1
 Auto Trip
When NEL auto trip is enabled:
If the genset power has exceed the NEL trip value, after the trip delay, NEL1 will trip earliest, and then is
NEL2, NEL3;
When NEL auto reconnection is enabled:
If the genset power has fallen below the auto reconnection set value, after the auto reconnection delay,
NEL3 will reconnect earliest, and then is NEL2, NEL1.
Fig.11 NEL Sequence
 Manual Trip
If NEL manual trip input is active (earthed falling edge is active), NEL1 will trip without delay; If NEL
manual trip input is active again, NEL2 will trip; If NEL manual trip input is active the third time, NEL3 will
trip;
If NEL manual reconnection input is active (earthed falling edge is active), NEL3 will reconnect without
delay; If NEL manual reconnection input is active again, NEL2 will reconnect; If NEL manual
reconnection input is active the third time, NEL1 will reconnect. During this process, the controller
detects the genset power: if the genset power has fallen below the NEL reconnection value, then the
input is active; if it doesn't, the input is deactivated.
NOTE: When auto trip and auto reconnection are enabled, manual trip is still active.
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