How To Fine-Tune When Sbc Speed Limits Are Detected - ABB FSO-21 User Manual

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How to fine-tune when SBC speed limits are detected

Example 1: SBC speed limit (parameter SBC.15) is reached in the SS1 function (and
SSE with emergency ramp), a negative SBC delay (parameter
delay is configured in the SS1 function:
)
• With an encoder: parameter
• Without an encoder: parameter
Speed
SBC.15
= 90 rpm
Note: If the SBC delay (parameter
(0 ms), the SBC and STO functions are activated at the same time.
FSOGEN.32 Zero speed delay time
FSOGEN.31 Transient mute time
FSOGEN.32
SBC.12
SBC speed
limit reached
Mute time elapsed, SBC activated
SBC delay elapsed, STO activated
SBC.12 STO SBC
Configuration 317
SBC.12 STO SBC
or FSOGEN.31 = 20 ms
= -15 ms
delay) is positive or zero
= 20 ms
= 20 ms.
Time