About this manual
24
Inquiries
Address any inquiries about the product to the local ABB representative, quoting the
type code and serial number of the unit. If the local ABB representative cannot be
contacted, address inquiries to ABB Oy, AC Drives, PO Box 184, 00381 Helsinki,
Finland.
Terms and abbreviations
Term/Abbreviation Explanation
AGPS Gate driver power supply board. An optional board within drives, used to
implement the Prevention of unexpected start-up function.
APBU Type of optical branching unit used for connecting parallel-connected
converter modules to the RDCU.
ASTO An optional board within drives, used to implement the Safe torque off
function.
CMF Common mode filtering.
DDCS Distributed Drives Communication System; a protocol used in optical fibre
communication inside and between ABB drives.
Drive unit See Motor-side converter.
EMC Electromagnetic Compatibility.
Four-quadrant
operation
Operation of a machine as a motor or generator in quadrants I, II, III and
IV as shown below. In quadrants I and III, the machine operates as a
motor, whereas in quadrants II and IV it operates as a generator
(regenerative braking).
Frame (size) Relates to the construction type of the component in question. For
example, several drive types with different power ratings may have the
same basic construction, and this term is used in reference to all those
drive types.
With the ACS800-17, the frame size of the drive indicates the quantity and
frame size of the inverter modules, e.g. “2×R8i”.
To determine the frame size of a drive type, see the rating tables in
chapter Technical data.
IGBT Insulated Gate Bipolar Transistor; a voltage-controlled semiconductor type
widely used in inverters because of their easy controllability and high
switching frequency.
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