83 overspeed limit – Rockwell Automation Liqui-Flo DBT Reach Drive User Manual
Page 44
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DBT Reach Drive User Manual
Sets the incremental amount of the output frequency (above Maximum Speed)
allowable for functions such as slip compensation. See figure 3.3.
Maximum Speed + Overspeed Limit must be
≤ to Maximum Frequency
!
ATTENTION: The user is responsible for ensuring that the driven
machinery, all drive-train mechanisms, and application material are
capable of safe operation at the maximum operating speed of the drive.
Overspeed detection in the drive determines when the drive shuts down.
The factory default for overspeed detection is set to 10.0 Hz (or 300.0
RPM) greater than the Maximum Speed (82). Failure to observe this
precaution could result in equipment damage, sever injury or loss of life.
83
Overspeed Limit
Range:
0.0 to 20.0 Hz [0.1 Hz] or 0.0 to 600.0 RPM [0.1 RPM]
Default:
10.0 Hz or 300.0 RPM
Access:
2
Path: Speed Command>Spd Mode & Limits
See also:
55, 79, 82
!
ATTENTION: The user is responsible for ensuring that the driven
machinery, all drive-train mechanisms, and application material are
capable of safe operation at the maximum operating speed of the drive.
Overspeed detection in the drive determines when the drive shuts down.
The factory default for overspeed detection is set to 10.0 Hz (or 300.0
RPM) greater than the Maximum Speed (82). Failure to observe this
precaution could result in equipment damage, sever injury or loss of life.
Figure 3.3 – Speed Limits
Frequency
Overspeed
Limit
(83)
Frequency Trim
due to Speed
Control Mode
Max Volts
(54)
Motor Volts
(41)
Run
Boost
(70)
Break Volts
(71)
Start Boost
(69)
Allowable Output Frequency Range - Normal Operation
Allowable Speed Reference Range
Allowable Output Frequency Range -
Bus Regulation or Current Limit
Maximum
Freq
(55)
Motor NP Hz
(43)
0
Break
Frequency
(72)
Max
Speed
(82)
Min
Speed
(81)
Output
Freq Limit
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