10-9
10.5 Dwell operation
Group
Display
Parameter Name
Setting
Range
Default Unit
Function
group 2
H7
[Dwell frequency]
-
0.1 ~ 400
5.00
Hz
H8
[Dwell time]
-
0 ~ 10
0.0
sec
In this setting, motor begins to accelerate after dwell operation is executed for dwell time
at the dwell frequency.
It is mainly used to release mechanical brakes in elevators and cranes.
Dwell frequency: This function is used to generate an output torque in an intended direction. It is useful
in hoisting applications to get enough torque before releasing a mechanical brake.
Dwell frequency shall be set greater than Rated Slip frequency of the motor. Rated slip frequency is
calculated by the formula shown below.
×
−
=
120
P
rpm
f
f
r
s
Where,
s
f
= Rated slip frequency
r
f
= Rated frequency
rpm
= Motor nameplate RPM
P
= Number of Motor poles
Example
Rated frequency = 60Hz
Rated RPM = 1740rpm
Number of motor poles= 4
Hz
f
s
2
120
4
1740
60
=
×
−
=
Frequency
Run
command
Dwell time
Dwell freq.
Start freq.
Содержание Sinus M
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Страница 75: ...8 1 CHAPTER 8 CONTROL BLOCK DIAGRAM Frequency setting Drive mode Accel Decel V F control PWM Motor...
Страница 78: ...8 4 Notes...
Страница 114: ...10 14 Normal PID block diagram H54 0...
Страница 115: ...10 15 Process PID block diagram H54 1...
Страница 150: ...10 50 Notes...
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Страница 192: ...13 18 Notes...
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Страница 208: ...16 4 16 2 Conduit Kit Installation 1 From SINUS M 0001 to SINUS M 0007 2 From SINUS M 0011 to SINUS M 0014...
Страница 217: ...16 13 Model 4000W IP20 A mm B mm L mm H mm P mm 620 600 100 250 40 Overall Dimensions Resistor 4000W IP20...
Страница 219: ...17 1 CHAPTER 17 EC Declaration of Conformity...