Sinamics Perfect Harmony Gh180 6Sr41 Manufactured In Nma Nuernberg, Germany - Siemens GH180 Operating Instructions Manual

Operation
8.3 General Troubleshooting Information
8.3 General Troubleshooting Information
8.3.1 Handling General Cell and Power Circuitry Faults
General Cell and Power Circuitry Faults
The types of faults addressed in this section include the following:
● capacitor sharing faults
● blocking failure faults
● switching failure faults.
● AC fuse(s) blown faults
● control power faults
● device out of saturation (OOS) faults
● bypass failed faults
● VDC undervoltage faults
Electrical Shock Hazard (MV Present)
Prior to working on the equipment as discussed in the following paragraphs, refer to the secion
of this manual titled, Safety Notes.
Because MV is present, only qualified personnel are permitted to work on this equipment.
Failure to to use qualified personnel may result in death, serious personal injury, and damage
to the equipment.
Note
Cell Replacement
The power cell is the lowest replaceable unit by customer.
When a power cell must be replaced, contact Siemens Industry, Inc. Technical support. See
the section of this manual titled, Contacts and Technical Support.
Handling Capacitor Sharing Faults
The cell capacitor bank is made up of from two to three series capacitor banks. Circuitry on
the CCB measures the voltage on each section and if the voltages are off by any amount, the
fault is set. This indicates that under load the capacitors are not sharing load evenly and could
be the result of faulty capacitors or loose connections.
Course of Action
● Fix or replace damaged or defective components.
136
WARNING

SINAMICS PERFECT HARMONY GH180 6SR41 manufactured in NMA Nuernberg, Germany

Operating Instructions Rev.201706301306