SECTION 6 OPERATION
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6
6.5.2 Operation from Start-up to Low Speed Rotation
This is the procedure until low-speed rotation is achieved when the speed setting is made with
the pump stopped.
LOCAL Operation
(1) Start-up begins when the 6.2.1 "Start-up Preparation Sequence in LOCAL Mode" is
complete.
(2) Set the low speed value with the setting mode/rotational speed settings/low speed setting
set value on the LCD display. (See Section 6.6 "Software Operation" (4).) After this setting
has been made once, it does not have to be repeated each time.
(3) Select the LOW SPEED mode using the setting mode/rotational speed settings/low speed
setting set value. (See Section 6.6 "Software Operation" (4).)
(4) Press the START switch (Fig. 2-1 (6)).
(5) While the speed is changing, "*" is displayed after the monitor mode/speed display. (See
Section 6.6 "Software Operation" (1).)
(6) ACC is displayed on the pump monitor mode/operation mode LCD and the pump starts to
accelerate. After a few seconds the ROTATION lamp (Fig. 2-1 (11)) lights.
(7) When the rotational speed reaches 80% of low-speed value, the NORMAL SPEED lamp
lights (Fig. 2-1 (12)) and the pump monitor mode/operation mode LCD switches from "ACC."
to "NORMAL".
(8) When the pump speed reaches the set low speed value, acceleration stops and the pump
speed is maintained.
※ The same operation occurs if the LOW SPEED mode is selected after the START switch is
pressed but before the pump speed reaches the set low speed value.
REMOTE Operation
(1) Start-up begins when the 6.2.2 "Start-up Preparation Sequence in REMOTE Mode" is
complete.
(2) Set the low speed value with the setting mode/rotational speed settings/low speed setting
set value on the LCD display. (See Section 6.6 "Software Operation" (4).) After this setting
has been made once, it does not have to be repeated each time.
(3) Input the "LOW SPEED" signal (see Table 6-3) from the remote-control connector (Fig. 2-
2 (23)).
(4) Input the "START" signal from the remote-control connector (Table 6-3).
(5) The pump starts to accelerate when the "ACCELERATION" signal (see Table 6-3) from
the remote-control connector (Fig. 2-2 (23)) turns ON. After a few seconds the "ROTATION"
signal turns ON.
(6) When the rotational speed reaches 80% of low speed value, the remote-control connector
"ACCELERATION" signal turns OFF and the "NORMAL" signal turns ON.
(7) When the pump speed reaches the set low speed value, acceleration stops and the pump
speed is maintained.
※ The same operation occurs if the "LOW SPEED" signal is input after the "START" signal is
input but before the pump speed reaches the set low speed value.