Siemens SINAMICS GL150 - Page 9

8.3.3 Suppression bandwidths......................................................................................................110
8.3.4 Speed limitation....................................................................................................................110
8.3.5 Ramp-function generator .....................................................................................................111
8.3.6 Vector control.......................................................................................................................111
8.4 Monitoring and protection functions .....................................................................................112
8.4.1 Safety shutdown of the converter.........................................................................................112
8.4.2 Speed monitoring with incremental encoder........................................................................112
8.4.3 Uncontrolled stop, EMERGENCY STOP category 0 ...........................................................113
8.4.4 Protection function of ground fault detection........................................................................114
8.5 Fault and system messages ................................................................................................114
8.5.1 External warnings and faults................................................................................................114
8.5.2 Diagnostics...........................................................................................................................115
8.5.2.1 Diagnostics via LEDs ...........................................................................................................115
8.5.2.2 Diagnostics via parameters..................................................................................................117
8.5.2.3 Indicating and rectifying faults..............................................................................................119
9 Maintenance .............................................................................................................................................121
9.1 Safety instructions for maintenance .....................................................................................121
9.2 Grounding the system ..........................................................................................................123
9.3 Opening the device ..............................................................................................................125
9.4 Preventive maintenance.......................................................................................................126
9.4.1 Visual inspections ................................................................................................................127
9.4.1.1 Equipment for visual inspections..........................................................................................127
9.4.1.2 Checking the isolating clearances........................................................................................127
9.4.1.3 Checking hoisting solenoids and security bolts....................................................................128
9.4.1.4 Checking the plug connections. ...........................................................................................128
9.4.1.5 Checking the cable and screw terminals..............................................................................128
9.4.1.6 Checking the thyristor electronics ........................................................................................128
9.4.1.7 Checking the DC-link reactor ...............................................................................................129
9.4.1.8 Checking the cooling circuit .................................................................................................129
9.5 Maintenance.........................................................................................................................129
9.5.1 Replacing a fan ....................................................................................................................129
9.5.2 Replacing the back-up battery of the AOP30 operator panel ..............................................129
9.6 Cleaning ...............................................................................................................................131
9.6.1 Cleaning aluminum parts .....................................................................................................131
9.6.2 Cleaning the cooling unit filter..............................................................................................132
9.7 Repairs.................................................................................................................................132
9.7.1 Replacing the AVT combination module..............................................................................133
9.7.2 Replacing the snubber circuit capacitor ...............................................................................135
9.7.3 Replacing the CompactFlash card.......................................................................................135
9.7.4 Replacing contactors............................................................................................................136
9.7.5 Replacing the current transformer........................................................................................136
9.7.6 Replacing the thyristor electronics and thyristors.................................................................139
9.7.6.1 Check components of the thyristor assembly ......................................................................139
9.7.6.2 Replacing thyristor electronics .............................................................................................140
9.7.6.3 Replacing a thyristor ............................................................................................................144
9.7.6.4 Disconnecting the fiber-optic cables ....................................................................................146
9.7.7 Replacing surge arresters....................................................................................................146
Table of contents
SINAMICS GL150 6SL38555UN113KA0Z
Operating Instructions Rev.201910281450 EXAMPLE 9