Edwards STP Series

STP-iXR1606 Turbomolecular Pump
MT-79E-001-D
Page 54
4
OPERATION
4.6.2 Starting/stopping the STP pump
There are the methods of contact input for the starting/stopping operation with the parallel port.
Method Starting the pump Stopping the pump
1 1) Short the circuit between (1)-(21).
2) Short the circuit between (3)-(21) for 0.3
seconds or more.
However, when inputting this signal
simultaneously with switching "ON" the STP
pump, short the circuit between (3)-(21) for 10
seconds or more.
Open the circuit between (1)-(21).
2 Short the circuit between (1)-(3).
In this case, (21) is not used.
Open the circuit between (1)-(3).
Table 9 - Starting/stopping the STP pump (X2 REMOTE)
0.3 sec. or more
Stop Rotation
Stop
CLOSE
OPEN
(1)
–
(21)
(3)–(21)
X2 REMOTE
connector
Pump operation
OPEN
CLOSE
Figure 28 - Pump operation method 1
Stop Rotation Stop
(1)–(3)
X2 REMOTE
connector
OPEN
CLOSE
Pump operation
Figure 29 - Pump operation method 2