How To Configure Sbc Before Sto - ABB FSO-21 User Manual

268 Configuration
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How to configure SBC before STO

For more information on the SBC before STO function, see page 63.
Example 1 (without an encoder): The figure below shows an example of the SBC
before the STO set-up when an encoder is not used:
• STO delayed brake with negative delay -500 ms
(SBC.11 STO SBC usage
• redundant emergency stop button connected to input
(STO.11 STO input A
• automatic acknowledgement
• estimated time in which the motor brakes to a stop from the maximum speed:
1200 ms (SBC.13 SBC time to zero speed
• brake connected to redundant output, diagnostic pulses activated
(SBC.21 SBC output
• STO is activated if brake feedback fails
• brake feedback input connected to input
(SAFEIO.22 Safety relay 1 feedback
• feedback input type NC (inverted state compared with the brake relay)
(SAFEIO.23 Safety relay 1 feedback type
Inputs
STO.11
= DI X113:1 & X114:1
STO.12
= None
SAFEIO.22
= DI X113:2
Check also the
feedback input!
= Delayed brake,
= DI X113:1 & X114:1)
(STO.02 STO acknowledgement
= DO X113:7 & X114:7,
= DI X113:2)
STO.02
Speed
SBC.12 = -500 ms
SBC.13 = 1200 ms
STO activated
SBC activated
SBC.11 = Delayed brake
SBC.22 = STO
SAFEIO.23 = Mechanically linked NC contacts
SAFEIO.53, SAFEIO.56
SBC.12 STO SBC delay
= 1200 ms)
SAFEIO.53 and
(SBC.22 SBC feedback action
= Mechanically linked NC contacts).
= Automatic
Time
= On
= -500 ms)
= Automatic)
SAFEIO.56 = On)
= STO)
Outputs
STO.21
= None
STO.22
= None
SBC.21
= DO X113:7 &
X114:7