STP-iX457/iXU457 Series Turbomolecular Pump
MT-86E-001-F
Page 139
7
SAFETY FUNCTIONS
7.6 Troubleshooting
7.6.1 Indication of "STATUS" LED (red flash)
A safety function operates and "STATUS" LED flashes in red when an abnormality/error occurs while
the STP pump is in operation. Also, the failure signal is output from the "X2 REMOTE" connector. If an
abnormality/error is found, take measures in accordance with Table 40 to Table 44. DO NOT perform
operations not mentioned in Table 40 to Table 44.
Note: The STP-Link (optional accessory) and the power supply unit iPD-240-24V (optional
accessory) display an error as a message. Also, the errors being detected can be read via
serial communication.
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