40
Electrical installation
Checking the compatibility with IT (ungrounded) and corner-grounded TN
systems
WARNING!
Disconnect the internal EMC filter when installing the drive on an IT
system (an ungrounded power system or a high-resistance-grounded [over
30 ohms] power system), otherwise the system will be connected to ground potential
through the EMC filter capacitors. This may cause danger or damage the drive.
Disconnect the internal EMC filter when installing the drive on a corner-grounded TN
system, otherwise the drive will be damaged.
1. If you have an IT (ungrounded) system or corner-grounded TN system,
disconnect the internal EMC filter by removing the EMC screw. For 3-phase U-
type drives (with type designation ACS150-03U-), the EMC screw is already
removed at the factory and replaced by a plastic screw.
EMC
VAR
Summary of Contents for ACS150 series
Page 4: ......
Page 5: ......
Page 15: ...14 Safety ...
Page 19: ...18 Introduction to the manual ...
Page 39: ...38 Planning the electrical installation ...
Page 51: ...50 Installation checklist ...
Page 57: ...56 Start up and control with I O ...
Page 69: ...68 Control panel ...
Page 79: ...78 Application macros ...
Page 160: ...L Q M 0 I II D I II I I ro I m D en m D D Q Q f 3AFE68633931 A 0 Frame size R2 IP20 INEMA 1 ...
Page 161: ...ji 4 I 5 I 6 4 J ...
Page 162: ......
Page 163: ...160 Dimension drawings ...
Page 169: ...166 Appendix Process PID control ...
Page 171: ...168 ...