Maintenance and hardware diagnostics 371
7. Install the new fan holder including the fan in reverse order.
8. Restore power.
Capacitors
Reforming the capacitors
The capacitors must be reformed if the drive has been stored for a year. See section
on page
for how to find out the manufacturing time from the
serial number. For information on reforming the capacitors, refer to
Guide for
capacitor reforming in ACS50, ACS55, ACS150, ACS310, ACS350, ACS355,
ACS550 and ACH550
(3AFE68735190 [English]), available on the Internet (go to
and enter the code in the Search field).
Power connections
WARNING!
Read and follow the instructions in chapter
on page
. Ignoring the instructions can cause physical injury or death, or
damage to the equipment.
1. Stop the drive and disconnect it from the power line. Wait for five minutes to let the
drive DC capacitors discharge. Ensure by measuring with a multimeter
(impedance at least 1 Mohm) that there is no voltage present.
2. Check the tightness of the power cable connections. Use the tightening torques
given in section
Terminal and lead-through data for the power cables
on page
3. Restore power.
7
Summary of Contents for ACS355 series
Page 1: ...ABB machinery drives User s manual ACS355 drives ...
Page 4: ......
Page 16: ...16 ...
Page 32: ...32 Operation principle and hardware description ...
Page 58: ...58 Electrical installation ...
Page 74: ...74 Start up control with I O and ID run ...
Page 106: ...106 Control panels ...
Page 120: ...120 Application macros ...
Page 178: ...178 Program features ...
Page 338: ...338 Fieldbus control with embedded fieldbus ...
Page 368: ...368 Fault tracing ...
Page 404: ...404 Dimension drawings ...
Page 410: ...410 Appendix Resistor braking ...
Page 434: ...434 Appendix Permanent magnet synchronous motors PMSMs ...