12 Introduction to the manual
Frame (size)
Relates to the construction type of the drive in question. For example,
several drive types with different power ratings can have the same
basic construction, and a frame size is used in reference to all those
drive types.
With the ACS880-07/17/37 (smaller), the frame size marking of the
drive indicates the physical size of the drive, eg, R6.
With the ACS880-07 (larger), the frame size marking of the drive
indicates the quantity and frame size of the diode supply modules
plus the quantity and frame size of the inverter modules, eg, “2×D8T
+3×R8i”.
With the ACS880-17 and ACS880-37 (larger), the frame size marking
of the drive indicates the quantity and frame size of the IGBT supply
modules plus the quantity and frame size of the inverter modules, eg,
“2×R8i +3×R8i”.
FSE-31
Pulse encoder interface module
FSO-12
Safety functions module which does not support the use of encoders
FSO-21
Safety functions module which supports the FSE-31 module and the
use of safety encoders
HFT
Hardware fault tolerance
IEC 61508,
EN/IEC 62061
GND
Ground
IGBT
Insulated gate bipolar transistor
modoff
No modulation
NC
Normally closed
PFD
avg
Average probability of dangerous failure on demand
IEC 61508
PFH
Average frequency of dangerous failures per hour
IEC 61508
PL
Performance level (levels are: a, b, c, d and e). Corresponds to SIL.
EN ISO 13849-1
POUS
Prevention of unexpected start-up
EN 1037
R8i
Frame size designation of the inverter module
SAR
Safe acceleration range. In the FSO module, there are two sets of
SAR parameters (SAR0 and SAR1) that are used to decelerate the
motor(s) and to define the ramp monitoring limits. SAR1 parameters
are used in the Emergency stop, stop category 1 safety function
described in this manual.
EN/IEC 61800-5-2
SC
Systematic capability
IEC 61508:2010
SIL
Safety integrity level (levels are: 1, 2, 3 and 4)
IEC 61508,
IEC 61511,
EN/IEC 62061,
EN/IEC 61800-5-2
SILCL
SIL claim limit. Maximum SIL that can be claimed for a safety
function or subsystem
EN/IEC 62061
SS1
Safe stop 1
EN/IEC 61800-5-2
SSE
Safe stop emergency
STO
Safe torque off. In this manual, this term is used in two different
contexts:
• the STO circuit in the drive (the drive STO function)
• the STO safety function in the FSO module.
Safety functions in the FSO module (eg, STO, SSE, SS1 and POUS)
activate the drive STO function, that is, open the drive STO circuit. In
addition, some safety functions can activate the STO safety function
in the FSO module, which in turn opens the drive STO circuit.
EN/IEC 61800-5-2
Abbreviation
Description
Reference
Summary of Contents for ACS880-17
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