STP-iX455/iXL455 Series Instruction Manual
6-2
Operation
6.3 Stop Procedures
Close the vacuum valve located at the outlet port flange side just before, or after stopping
the STP pump. After closing the valve, stop the backing-pump.
◇ DO NOT stop the backing-pump without closing the vacuum valve.
Depending upon the type of the backing-pump, doing so could cause a reverse
flow of atmospheric air into the STP pump, which may result in a malfunction.
◇ DO NOT stop the backing-pump without closing the valve.
Depending upon the type of the backing-pump, doing so may cause a reverse flow
of oil from the backing-pump, which could contaminate the inside of the STP
pump.
6.4 Powering ON
Turn "ON" the external power supply unit. If no error is found, the magnetic bearing
functions and the rotor levitates (POWER ON state). The "POWER" LED illuminates in
green (Levitation state).
6.5 Pump Operation
6.5.1 Input Operation Port Setting
Set the hardware which operates the STP pump before the operation.
The STP pump is equipped with the parallel port (X2 REMOTE connector), serial port
COM1 (X3 COM1 connector), and serial port COM2 (X5 STP-Link connector) as standard
hardware for the operation.
Serial port COM3 is available when connecting the power supply unit iPS-240 (optional
accessory). The STP-Link (optional accessory) and the display unit iDT-001 (optional
accessory) can operate the STP pump via COM2 and COM3.
When setting the input operation port to the parallel port, refer to Section 7, "Remote
Input/Output Signal Connector". When setting to a serial port, refer to Section 9, "Serial
Communication Protocol" for information and methods.
The method of operation with the parallel port (X2 REMOTE connector) is shown below.
Following it after reading through Section 7, "Remote Input/Output Signal Connector".
When operating the STP pump via serial communication, refer to Section 9, "Serial
Communication protocol".
When operating the STP pump via the STP-Link (optional accessory) or the display unit
iDT-001 (optional accessory), refer to each Instruction Manual.
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