12-16-12
Chapter 12
Inverter Function
12.16.9
Detecting over-speed error
•
How to monitor whether the motor is rotating at
below the maximum speed
•
How to display an error signal when the allowable
speed of the system is exceeded
•
The over-speed error detection function judges
that the speed is excessive if the feedback speed
exceeds the over-speed level.
•
This function operates when other than "0.0" is
specified for [bb-80] Over-speed error detection
level.
■
Parameter
•
To use this function, speed feedback by the
encoder is required.
•
Whether the speed is excessive is determined
according to the feedback frequency displayed on
[dA-08] Detected frequency monitor.
•
When the speed has exceeded [bb-80]
Over-speed error detection level and [bb-81]
Over-speed error detection time has elapsed, it is
judged as an over-speed error.
•
When an over-speed error occurs, the inverter
trips with [E107] Over-speed error.
Item
Parameter
Data
Description
Over-speed error
detection level setting
[bb-80]
0.0~150.0(%)
Sets the speed level at which the speed is
determined to be excessive.
Over-speed error
detection time
[bb-81]
0.0~5.0(s)
Sets the time to judge the speed to be an
error after it has excessively increased. The
inverter trips with [E107] Over-speed error.
Detected frequency
monitor
[dA-08]
-590.00~
590.00(Hz)
Displays the data obtained through encoder
feedback.
Q
A
!
Speed
bb-81
0
bb-80
bb-80
The inverter trips due to an
over-speed error.
Содержание SJ Series
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Страница 661: ...20 11 Chapter 20 Specifications Model P1 P1 200V class 02950 L 550L Dimension W mm H mm D mm 700 480 250 ...
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Страница 678: ...21 7 Chapter 21 Technical Notes SJ700D SJ P1 ND normal duty SJ700D 550LFF3 P1 02950 LFEF P1 550LFF ...
Страница 686: ...21 15 Chapter 21 Technical Notes SJ700B SJ P1 LD low duty VLD very low duty SJ700B 750LFF P1 02950 LFEF P1 550LFF ...
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