Terms And Abbreviations - ABB Q957 User Manual

For acs880-07/07lc/17/17lc/37/37lc drives, prevention of unexpected start-up

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ACS880-07 (45 to 710 kW) manuals

ACS880-17 (45 to 400 kW) manuals

ACS880-37 (45 to 400 kW) manuals

Terms and abbreviations

Term

Cat.

CCF

D8T

FIT

Frame, frame size

HFT

IGBT

PFD

avg

PFH

ACS880-07 (560 to 2800 kW)

ACS880-17 (160 to 3200 kW)

ACS880-37 (160 to 3200 kW)

Description

Classification of the safety-related parts of a control system in respect of their resistance

to faults and their subsequent behavior in the fault condition, and which is achieved

by the structural arrangement of the parts, fault detection and/or by their reliability.

The categories are: B, 1, 2, 3 and 4. (EN ISO 13849-1)

Common cause failure (%) (EN ISO 13849-1)

Frame size designation of the diode supply module

Diagnostic coverage (EN ISO 13849-1)

Failure in time: 1E-9 hours (IEC 61508)

Physical size of the drive or power module

Hardware fault tolerance (IEC 61508)

Insulated gate bipolar transistor

Average probability of dangerous failure on demand (IEC 61508)

Average frequency of dangerous failures per hour (IEC 61508)

manuals

Introduction to the manual 13

ACS880-07LC manuals

ACS880-17LC manuals

ACS880-37LC manuals

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