
The ACS800-04/U4 and ACS800-04M
30
Printed circuit boards
The drive contains the following printed circuit boards as standard:
• main circuit board (AINT)
• motor control and I/O board (RMIO) with a fibre optic link to the AINT board
• input bridge control board (AINP)
• input bridge protection board (AIBP) which includes snubbers for the thyristors
and varistors
• power supply board (APOW)
• gate driver control board (AGDR)
• diagnostics and panel interface board (ADPI)
• brake chopper control board (ABRC) with D150
Motor control
The motor control is based on the Direct Torque Control (DTC) method. Two phase
currents and DC link voltage are measured and used for the control. The third phase
current is measured for earth fault protection.
Summary of Contents for ACS800-04
Page 4: ......
Page 12: ...Safety instructions 12 ...
Page 54: ...Planning the electrical installation 54 ...
Page 72: ...Motor control and I O board RMIO 72 ...
Page 116: ...Resistor braking 116 ...
Page 117: ......