STP-iX457/iXU457 Series Turbomolecular Pump
MT-86E-001-F
Page 144
7
SAFETY FUNCTIONS
Referred
Section
The driver output stops and the rotor continue rotating by inertia. It may take several hours to stop.
To stop the STP pump quickly, close the vacuum valve at the outlet port flange and introduce gas from the purge port into the STP pump.
Table 44 - Error List (continued)
Countermeasures
Set the voltage to the rated
Send a communication
command periodically at
intervals of less than
setting value.
Check the communication
cable.
Contact Service office.
.
Probable causes
control unit.
ower supply voltage is o
Insufficient user
application setting.
Disconnection or break of
the communication cable.
Failure of the control unit.
control unit.
Frequency of "Disturbance"
Power Failure" error.
Occurrence
condition
ction of
and
Pump operation
*1
ecelerate and
ecelerate and
*1
ecelerate and
(Error message)