
en – Original instructions
e-IXPSA – Additional Installation, Operation and Maintenance Manual 3
4.3.2 Guidelines for the hydraulic system ..........................................................................................................21
4.3.3 Forces and torques applied to the ports................................................................................................... 22
4.3.4 Auxiliary Connections ................................................................................................................................22
4.4 Mechanical seals and auxiliary systems ........................................................................................................ 23
4.5 Electrical connection......................................................................................................................................23
4.5.1 Precautions ................................................................................................................................................. 23
4.5.2 Guidelines for electrical connection.......................................................................................................... 24
4.5.3 Motor connection ....................................................................................................................................... 24
4.5.4 Overload protection................................................................................................................................... 25
4.5.5 Operation with frequency converter (VSD)...............................................................................................25
5Use and operation ..................................................................................................................................................26
5.1 Precautions ..................................................................................................................................................... 26
5.2 Checking the rotation direction..................................................................................................................... 27
5.3 Start-up ...........................................................................................................................................................27
5.4 Stopping .........................................................................................................................................................28
6Maintenance............................................................................................................................................................29
6.1 Precautions ..................................................................................................................................................... 29
6.2 Periodic maintenance .................................................................................................................................... 30
6.3 Long periods of inactivity............................................................................................................................... 31
6.4 Spare parts ordering ......................................................................................................................................31
6.5 Tightening torques.........................................................................................................................................31
7Troubleshooting......................................................................................................................................................33
7.1 Precautions ..................................................................................................................................................... 33
7.2 The unit does not start ...................................................................................................................................33
7.3 The differential protection device (RCD) has tripped ..................................................................................33
7.4 The unit produces excessive noise and/or vibrations ..................................................................................33
7.5 The thermal overload protection triggers or the fuses trip..........................................................................34
7.6 The thermal overload protection triggers..................................................................................................... 34
7.7 The motor becomes excessively hot .............................................................................................................34
7.8 Little or no hydraulic performance ................................................................................................................34
7.9 When switched off, the unit turns in the opposite direction ........................................................................35
7.10 The unit starts and stops too frequently........................................................................................................ 35
7.11 The unit does not stop ...................................................................................................................................35
7.12 The unit is leaking at the mechanical seal.....................................................................................................35
7.13 The frequency converter is in error mode or turned off...............................................................................35
8Technical Information .............................................................................................................................................36
8.1 Operating environment ................................................................................................................................. 36
8.2 Temperature of pumped liquid .....................................................................................................................36
8.3 Maximum operating pressure .......................................................................................................................36
8.4 Electrical specifications.................................................................................................................................. 37
8.5 Maximum number of starts per hour.............................................................................................................38
8.6 Sound pressure .............................................................................................................................................. 38