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AC Tech MC1000 series - Page 19

AC Tech MC1000 series
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17
/ FAULT INVERSE FAULT - The relay energizes when the drive “trips”
into a fault condition, and remains energized until the fault
condition is cleared.
LOCK FAULT LOCKOUT - This relay is used when the drive is
programmed to automatically restart after a fault. The relay
energizes when input voltage is applied to the drive and
remains energized until the drive has faulted and unsuccessfully
attempted five restarts, or input voltage is removed.
@ SPEED AT SPEED - The relay energizes when the drive reaches the
speed setpoint. To avoid a “chattering” relay (energizing and
de-energizing), due to small fluctuations in speed, the relay
will remain energized as long as the actual speed is within + 3
Hz of the speed setpoint.
ABOVE #3 ABOVE SPEED #3 - The relay energizes when the output
frequency exceeds the SPEED #3 value, and de-energizes when
the output frequency returns to a value lower than the SPEED
#3 value. See Parameter 3 - SPEED #3 in Section 18.0 -
DESCRIPTION OF PARAMETERS.
I LIMIT CURRENT LIMIT - The relay energizes when the drive is
operating in current limit. Once the current limit relay is
energized, it remains energized for a minimum of 500ms,
regardless of whether the drive is still in current limit. At the
end of the 500ms interval, the relay will de-energize if the
drive is no longer in current limit. See Parameter 16 -
CURRENT in Section 18.0 - DESCRIPTION OF
PARAMETERS.
AUT/MAN AUTO/MANUAL MODE - The relay energizes when the
drive is in the AUTOMATIC mode, and de-energizes in the
MANUAL mode. Refer to Section 14.2.6 - SPEED
REFERENCE SELECTION.

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