ABB FSO-12 User Manual page 290

290 Parameters
Index Name/Value
FSOGEN.31 Transient mute time Sets the mute time for the drive transient
0...1000 ms
FSOGEN.41 Power-up
acknowledgement
Manual
Automatic
Safebus
Manual_Safebus
Description
operations. The FSO modules waits for the
Transient mute time before it acts after a
ramp monitoring or trip limit hit, or after the
zero speed limit is reached.
Transient mute time must be in line with the
system safety response time: it must be less
than the system safety response time minus
the maximum response time of the FSO.
See also section Transient mute time feature
on page33.
Example: When speed monitoring detects a
safety function limit hit, the FSO module
does not act immediately but it waits for the
Transient mute time first. If the speed is still
out of the limit after the Transient mute time,
the FSO module starts the safety actions
(that is, activates the STO or SSE function).
See also section Fine-tuning the
configuration on page 282.
Note: You can also use the Transient mute
time in applications in which the motor runs
a high inertia (mass) load and rapid changes
in speed are not possible.
Time
Sets the power-up acknowledgement
method.
Note: If a safety function request is active
when the FSO module is rebooted, the
request must be removed before the power-
up acknowledgement is accepted.
The FSO module reads an external
acknowledgement signal through the digital
input defined by parameter
Acknowledgement button
The FSO module generates the
acknowledgement signal automatically after
the power-up.
The FSO module expects an external
acknowledgement signal from the safety
fieldbus after the power-up.
The FSO module expects an external
acknowledgement signal either from a digital
input or from the safety fieldbus after the
power-up.
Factory
default
0 ms
Manual
FSOGEN.42
input.