STP-iS2207 Series Turbomolecular Pump 
 
MT-89E-001-C
Page 31
INSTALLATION 
3 
 
Item
Description  Function 
9  "Error" LED  (Red LED) Installed only when the Profibus (optional 
accessory) is equipped. ON at the same time as Offline LED 
= Configuration or parameterization error. 
Flashing at 1 Hz = Invalid address selected. 
10
"AC POWER" connector (X1)
AC input inlet (240 Va.c. maximum) 
For the AC power cable 
Input voltage range is between 200 to 240V AC (50/60Hz) 
11
"MAIN POWER" switch  Main power circuit breaker 
NEVER stop the power supply to the STP pump while the 
STP pump is in rotation.  
Table 5 - Control unit front panel functions (continued)