Menu 3 − Frequency Monitoring
Mode: Open‑Loop
Parameter 03.005 Zero Speed Threshold
Short description Set to the required zero speed threshold
Mode Open‑Loop
Minimum 0.0 Maximum 20.0
Default 1.0 Units Hz
Type 8 Bit User Save Update Rate Background read
Display Format Standard Decimal Places 1
Coding RW, BU
If the Post Ramp Reference (02.001) is at or below the level defined by this parameter in either direction Zero Speed (10.003) = 1, otherwise
Zero Speed (10.003) = 0.
Parameter 03.006 At Speed Lower Limit
Short description Set to the required minimum at speed threshold
Mode Open‑Loop
Minimum 0.0 Maximum 550.0
Default 1.0 Units Hz
Type 16 Bit User Save Update Rate Background read
Display Format Standard Decimal Places 1
Coding RW
At Speed (10.006) is set if the Post Ramp Reference (02.001) is on the boundaries or within the at speed window. Above Set Speed (10.007) and
Below Set Speed (10.005) are set if the reference is above or below the window respectively.
If Absolute At Speed Select (03.009) = 0 reference window mode is used.
The "at speed" condition is true if,
(|Pre-ramp Reference (01.003)| - At Speed Lower Limit (03.006)) ≤ |Post Ramp Reference (02.001)| ≤ (|Pre-ramp Reference (01.003)|
+ At Speed Upper Limit (03.007))
(If the lower limit is less than zero then zero is used as the lower limit.)
If Absolute At Speed Select (03.009) = 1 absolute window mode is used.
The "at speed" condition is true if,
At Speed Lower Limit (03.006) ≤ |Post Ramp Reference (02.001)| ≤ At Speed Upper Limit (03.007)
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