STP-iX457/iXU457 Series Turbomolecular Pump
MT-86E-001-F
Page
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4.6 How to start/stop the STP pump
4.6.1 Starting the STP pump after stopping
Perform the start operation shown in Section 4.5.2, "Starting/stopping the STP pump".
The STP pump can be reaccelerated even while it is stopping.
4.6.2 Starting the STP pump after a safety function operates
A safety function operates when an abnormality/error occurs in the STP pump or peripheral equipment.
To restart the STP pump, remove the cause of the abnormality/error after the STP pump stops
("STATUS" LED has one flash), and perform the operation shown in Table 13. The "STATUS" LED will
change from red to green and the safety function is released (RESET operation). Then, restart the STP
pump.
For the safety functions and troubleshooting, see Section 7, "Safety Functions".
Reset operation
Short the circuit between (6)-(11) for 0.3 seconds or more.
Table 13 - Reset operation (X2 REMOTE)
4.6.3 Powering OFF
Turn "OFF" the external supply unit when the STP pump stops ("STATUS" LED has one flash).
The magnetic bearing stops, the rotor lands, and the "STATUS" LED extinguishes (POWER OFF
state).
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