Edwards nEXT200200, Инструкция по эксплуатации

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Length of power failure Control mode Behaviour of pump
Power is restored after the
rotational speed of the pump
decreases below 50% but before
regenerative power stops
Parallel or serial control mode,
timer disabled
Regenerative power keeps all
output signals active during the
power failure. As the timer is
disabled, the controller will go
into fail condition when the
speed decreases below 50% and
will display flashing error code 0.
When the power is restored, the
pump will not speed up until the
error is cleared. To clear the
error, send a stop command
(parallel or serial, depend on the
control mode), send a start
command to speed up the pump
to the designated speed.
Parallel or serial control mode,
timer enabled
Regenerative power keeps all
output signals active during the
power failure. If power is
restored before the timer period
expires, the pump will speed up
to designated speed. If the timer
period expires, the controller will
go into fail condition and will
display flashing error code 3. As
above, when the power is
restored, the pump will not
speed up until the error is
cleared. To clear the error, send a
stop command (parallel or serial,
depend on the control mode),
send a start command to speed
up the pump to the designated
speed.
Power is restored after the
rotational speed of the pump
decreases below 50% and the
regenerative power stops
Parallel or serial control mode
Regenerative power stops and
fails to keep output signals.
When power is restored, the
pump with parallel control will
automatically restart if the start
control on the logic interface is
set to start. The pump with serial
control requires a new start
command to speed up the pump
to the designated speed. The fail
signals caused during the
regenerative power period are
lost when the power is restored.
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B85200880_D - Operation