Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
Fault/Fault / uint16Selects which indications are given when both Safe torque
off (STO) signals are switched off or lost. The indications
also depend on whether the drive is running or stopped
when this occurs.
The tables at each selection below show the indications
generated with that particular setting.
Note:
• This parameter does not affect the operation of the
STO function itself. The STO function will operate
regardless of the setting of this parameter: a running
drive will stop upon removal of one or both STO
signals, and will not start until both STO signals are
restored and all faults reset.
• The loss of only one STO signal always generates a
fault as it is interpreted as a malfunction.
• This parameter cannot be changed while the drive is
running.
For more information on the STO, see the Hardware
manual of the drive.
STO indication
run/stop
31.22
0
Indication (running
or stopped)
Inputs
IN2IN1
Fault 5091 Safe
torque off
00
Faults 5091 Safe
torque off and FA81
Safe torque off 1 loss
10
Faults 5091 Safe
torque off and FA82
Safe torque off 2 loss
01
(Normal operation)11
Fault/Fault
1
IndicationInputs
StoppedRunningIN2IN1
Warning A5A0
Safe torque off
Fault 5091
Safe torque
off5091 Safe
torque off
00
Warning A5A0
Safe torque off
and fault FA81
Safe torque off
1 loss
Faults 5091
Safe torque off
and FA81 Safe
torque off 1
loss
10
Warning A5A0
Safe torque off
and fault FA82
Safe torque off
2 loss
Faults 5091
Safe torque off
and FA82 Safe
torque off 2
loss
01
(Normal operation)11
Fault/Warning
334 Parameters
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