STP-301/451 Series Instruction Manual 
 
10
10 Safety Functions .........................................................................10-1 
10.1 Power Failure ................................................................................................................10-1 
10.2  Abnormal State of Magnetic Bearing.............................................................................10-3 
10.3 Excessive Vibration .......................................................................................................10-3 
10.4 Motor Driver Overload ...................................................................................................10-3 
10.5 Overheating Inside the STP Pump ................................................................................10-3 
10.6  Overheating Inside the STP Control Unit ......................................................................10-3 
10.7 Overspeed.....................................................................................................................10-3 
11  Troubleshooting, Maintenance and Inspection............................11-1 
11.1 Troubleshooting Immediately After An Abnormality/Error Occurs .................................11-1 
11.1.1  In Case of a Power Failure:.............................................................................11-1 
11.1.2 In Other Cases................................................................................................11-1 
11.2  When Error Message is Displayed ................................................................................11-2 
11.2.1 Error Messages...............................................................................................11-2 
11.2.2  Displaying Past Abnormalities/Errors and Accumulated Running-Time..........11-5 
11.2.3 Abnormalities When Powering ON..................................................................11-7 
11.2.4  Abnormalities When Performing the STP Pump Start Operation ....................11-7 
11.2.5 Other Abnormalities ........................................................................................11-8 
11.3 Maintenance and Inspection .........................................................................................11-9 
11.3.1  Inspecting the Air Cooling Fan ........................................................................11-9 
11.3.2 Replacing the Fuses .....................................................................................11-10 
11.3.3  Cleaning and Decontamination .....................................................................11-11 
11.3.4 Inspecting for Deposit ...................................................................................11-11 
11.3.5 Overhaul .......................................................................................................11-12 
11.3.6  Transporting for Repair or Overhaul..............................................................11-13 
12  Storage and Disposal ..................................................................12-1 
12.1  Storage of the STP Pump .............................................................................................12-1 
12.2  Storage of the STP Control Unit....................................................................................12-1 
12.3 Disposal ........................................................................................................................12-2 
13 Specifications and Accessories ...................................................13-1 
13.1 Specifications of the STP Pump....................................................................................13-1 
13.2  Specifications of the STP Control Unit ..........................................................................13-5 
 
UNIT CONVERSION TABLE 
 
ANNEX 
MALFUNCTION INFORMATION 
STP Series / Global Service Network