SECTION 6 OPERATION
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6
6.1 Outline
CAUTION
Neither disconnect and reconnect each cable while the pump is running. Particularly for
unplugging the control cable from the receptacle, check complete shutdown of the pump by
ROTATION lamp goes out and, thereafter, turn off the POWER switch.
CAUTION
Do not turn the power off while the pump is running. The touch-down bearing may need to be
replaced if the power is turned off repeatedly during operation. When the power is turned off
while the pump is rotating, power from regenerative braking maintains the magnetic levitation
until the rotational speed drops. Levitation then stops and the touch-down bearing supports the
rotor. Consequently, repeated touch-down operations can reduce the life of the bearing.
6.1.1 Introduction
(See Fig. 2-1 and Fig. 2-2)
The LCD (Fig. 2-1 (1)) displays the model name of the power supply unit corresponding to the
pump model name (e.g. SHIMADZU EI-Dxx03M) when the power supply unit POWER switch
(Fig. 2-2 (17)) is turned on.
It then displays "SELF CHECKING" and the power supply unit conducts self-diagnosis. If the
result is good, the LCD changes into monitor mode (See section 6.6 Software Operation (1)), and
the power supply is operatable. But if an alarm is delected, the LCD changes into alarm mode
(See Section 6.6 Software Operation (2)), and displays detected alarm.
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