STP-iX457/iXU457 Series Turbomolecular Pump
MT-86E-001-F
Page 29
INSTALLATION
3
Item
Description Function
1 "STATUS" LED The state of the STP pump is indicated by the flashing
pattern of the LED. Refer to Section 4.7, "LED".
2 "X3 OPTION" connector For the vent valve (optional accessory) attached in the purge
port or the fan cable for the air-cooling unit (optional
accessory).
Refer to Section3.7, "Vent Valve" or Section 3.12, "Air-
cooling unit U3-86" for details of the connector X3.
3 "X1 DC POWER" connector DC input inlet (26.4 V DC. maximum)
For the DC power cable
Input voltage range is between 21.6 to 26.4 V DC
4 "X2 REMOTE" connector For remote input/output signal in the parallel mode setting.
(X2: D-Sub15 pin) See Section 4.8, "Parallel port input/output
signal".
For RS232 and RS485 (common use) serial communication.
(X2: D-Sub15 pin).
For the user application. See Section 5, "SERIAL
COMMUNICATION PROTOCOL".
Table 4 - Control unit front panel functions