STP-iS2207 Series Turbomolecular Pump 
 
MT-89E-001-C
Page 30 
INSTALLATION 
3
orange LED. The flashing pattern indicates the warning type. 
Refer to Section 7.2, "WARNING Function". 
3  "ROTATION" LED  (Green/Orange LED) The rotational speed is indicated by the 
flashing pattern of the LED (acceleration state: green, 
deceleration state: orange). Refer to Section 4.8, "LED". 
4  "STP-LINK" connector (X5)  For the communication cable of the STP-Link (optional 
accessory) or the display unit iDT-001 (optional accessory). 
(X5: STP-LINK) These optional accessories can operate the 
STP pump, confirm the operation state, or change various 
settings. 
5  "REMOTE" connector (X2)  For remote input/output signal in the parallel mode setting. 
(X2: D-Sub37 pin) See Section 4.9, "Parallel port input/output 
signal". 
6  "COM1" connector (X3)  For RS232 and RS485 (common use) serial communication. 
(X3: D-Sub9 pin).  
For the user application. See Section 5, "SERIAL 
COMMUNICATION PROTOCOL". 
For the Profibus unit (optional accessory). Refer to the 
Instruction Manual of the Profibus. 
7  "Data" LED  (Green LED) Installed only when the Profibus (optional 
accessory) is equipped. Slave (STP pump) is in data 
exchange as defined by the Profibus standard. 
8  "Off-Line" LED  (Orange LED) Installed only when the Profibus (optional 
accessory) is equipped. Slave (STP pump) is not in data 
exchange as defined by the Profibus standard. 
Table 4 - Control unit front panel functions