![ABB FSO-21 User Manual Download Page 160](http://html.mh-extra.com/html/abb/fso-21/fso-21_user-manual_2728160.webp)
160 Safety functions
Step Description
1
The SLS request is received. The motor speed is above the SLS trip limit positive (A).
The drive starts to ramp down the motor speed.
The FSO starts the counter for the SLS time delay (C) (parameter
)
The drive (parameter 23.13 or 23.15) defines the deceleration ramp until the speed
reaches the SLS limit.
2
The drive trips on a fault, there is a drive power loss, or user stops the drive by coast
stop.
SLS Modoff delay time starts (parameters
).
3
Modulation of the drive returns before the
Modoff delay time has run out.
4
Modoff delay time limit. If the modulation would not return before this time, see previous
case.
5
Speed is below the monitoring limit and SLS monitoring is started.
6
The FSO starts the SLS monitoring at the latest here, that is, after the SLS time delay
has elapsed. The FSO starts the SLS monitoring when the motor speed is in the middle
of the SLS limit and the SLS trip limit (see also section
How to configure mute time for
on page
). The SLS indication (parameters
,
,
) goes on.
Summary of Contents for FSO-21
Page 1: ... OPTIONS FOR ABB DRIVES FSO 21 safety functions module User s manual ...
Page 4: ......
Page 16: ...16 Safety instructions ...
Page 34: ...34 Safety information and considerations ...
Page 52: ...52 Overview ...
Page 236: ...236 PROFIsafe ...
Page 265: ...PROFIsafe 265 2 Select your CPU from the list 3 Install the FENA 21 GSDML file ...
Page 275: ...PROFIsafe 275 20 In ABB_Drive FB add blocks DPRD_DAT and DPWR_DAT 21 Insert values to blocks ...
Page 282: ...282 PROFIsafe 5 To read the diagnostic messages select the I O Device Diagnostics tab ...
Page 286: ...286 PROFIsafe ...
Page 304: ...304 Installation ...
Page 400: ...400 Configuration ...
Page 488: ...488 Verification and validation ...
Page 506: ...506 Fault tracing ...
Page 514: ...514 Maintenance ...
Page 536: ...536 Technical data ...