STP-iS2207 Series Turbomolecular Pump 
 
MT-89E-001-C
Page
58 
4
OPERATION 
 
Pin  Description 
 
Pins for inputting the START signal. 
Short the circuits between (1)-(2). 
When the pins (1)-(2) are opened, the STP pump will stop. 
 
 
 
Pins for inputting the RESET signal. 
When a safety function operates, remove the cause of the 
abnormality/error after confirming the STP pump has stopped. 
When the cause of the abnormality/error is removed, short the 
circuits between (1)-(15) for 0.3 seconds or more to reset the 
failure signal (The "FAILURE" LED extinguishes). 
 
Pins for second speed signal input. 
When using this function, set "ENABLE" by the serial 
communication or the STP-Link. 
When pins (1)-(3) are set to close, rotational speed will be 
second speed when pump state is NORMAL.  
When pins (1)-(3) are set to open, rotational speed will be 
normal speed when pump state is NORMAL. 
When using the second speed function to switch the rotational 
speed through the serial communication port or STP-Link, open 
the circuits between (1)-(3). 
 
Pins for option signal input. (Not used) 
Table 12 - X2 REMOTE input signal pins 
(1)                               (15) 
COM                        RESET IN
(1)                               (2) 
COM                        START IN
(1)                                 (14) 
OPT IN
(1)                                 (3) 
COM                          SECON 
SPEED IN