Sto Status Indications - ABB ACS800 Series Application Manual

The table below describes the operation of the STO function in detail depending on:
•
status of the STO inputs
•
the fault or warning START INHIBI (see chapter
Status of STO inputs
De-energized
One energized, other
de-energized
Energized

STO status indications

Note: The indications are not safety classified information.
Control program
System Control Program
Standard Control Program
Control program
System Control Program
Standard Control Program
Control program
System Control Program
Standard Control Program
See also chapter Maintenance and fault
When drive is How the STO function operates
running Awakes and trips the drive.
stopped Awakes and disables start.
running Awakes and trips the drive.
stopped Awakes and disables start.
STO is on standby. Drive operates
running or stopped
normally.
Alarm and status bits / words
08.02 AUX STATUS WORD bit 8
08.21 START INHIBI WORD
03.03 AUX STATUS WORD bit 8
Alarms and faults
09.04 ALARM WORD 1 bit 0
09.06 FAULT WORD 3 bit 5
31.02 START INHIBIT ALM
03.08 ALARM WORD 1 bit 0
Digital / relay outputs
14 DIGITAL OUTPUTS
Note: To be programmed by the user. For information on
programming the digital outputs, see ACS800 system control program
firmware manual (3AFE64670646 [English]).
14 RELAY OUTPUTS
Note: To be programmed by the user. For information on
programming the relay outputs, see ACS800 standard control
program firmware manual (3AFE64527592 [English]).
tracing.
Option description 13
Maintenance and fault tracing).
START INHIBI
indication
Fault
Warning
Fault
Warning
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