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Programming 119
n3-04 High-Slip Braking Overload Time
Setting Range:
30 to 1200 Seconds
Factory Default: 40 Seconds
The OL7 (HSB Overload) fault will occur if the Drive frequency does not change within the time specified by the n3-04
parameter. The non-changing frequency can be caused by a load with excessive inertia or a motor that is being overhauled by
the load. A good test for the excessive load inertia is whether the Drive can stop the load normally (w/o a braking resistor but
not with HSB) in 180 seconds or less.
Fig. 86 High Slip Braking Timing Diagram
Run
Command
Approx. 90% of
overvoltage trip
HSB Off
HSB On
Drive will not restart until HSB stop is complete
and run command re-cycled
Motor
Speed
Output
Current
DC
Voltage
N3-02
HSB Current
N3-03
HSB Stop Dwell
E1-09
Minimum Frequency
L2-03
Minimum Baseblock
t
HSB On
HSB
Command
Motor
Speed
TIME
Содержание E7U
Страница 1: ...E7 Drive Programming Manual Model E7U Document Number TM E7 02...
Страница 140: ...Programming 134 Notes...
Страница 170: ...Parameters A 30 Notes...
Страница 174: ...Factory Default Settings B 4 Notes...