ABB ACS880 Series Manual page 25
Safely-limited speed with the encoder interface (option +q965)
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Also See for ACS880 Series:
- Firmware manual (764 pages) ,
- Manual (646 pages) ,
- Quick start up manual (146 pages)
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Example 2: SAR1 ramp monitoring active
In this example, parameter SLSx.05 is set to Monitoring active. The time diagram below
describes the operation of the SLS function when modulation is lost during the deceleration
ramp.
Motor speed
A
SAR1 ramp monitoring
B
Actual motor speed (coasting after modoff)
C
SLS trip limit
D
SLS limit
E
Last valid speed estimate of FSO
A
E
A
B
Option description 25
C
D
Time
SLS request
SAR1 monitoring
Drive modulation
STO.14 delay
STO active
SLS indication
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