ABB PVS-175 Series, Hardware Manual, Page: 13 / 72

Safe operation
This section contains the safety instructions which you must follow when operating the MVS.
If ignored, physical injury or death, or damage may occur.
WARNING!
Obey these instructions to prevent injury, death, or damage to the equipment
WARNING!
Keep all doors locked while the MVS is operating. Allow access to only authorized
personnel.
1. Keep all doors of the MVS closed during operation. Give the keys only to authorized
personnel.
2. Before you start a group of inverters, check the connections of each inverter input, and
the recommendations in the specific inverter manual.
3. Do not open the AC base fuse switches when the MVS is operating.
4. Before you adjust the group of inverters and set them into service, make sure that all
of them are suitable for operation.
5. Do not use the inverters in a manner not specified in the manual.
Note:
• Spend as little time as possible near the inverters or the MVS.
• Use a personal computer with a communication cable of sufficient length when you
monitor or adjust inverter parameters during operation.
Safety instructions 13