JPS6485590A - Motor brake - Google Patents
Motor brakeInfo
- Publication number
- JPS6485590A JPS6485590A JP24293187A JP24293187A JPS6485590A JP S6485590 A JPS6485590 A JP S6485590A JP 24293187 A JP24293187 A JP 24293187A JP 24293187 A JP24293187 A JP 24293187A JP S6485590 A JPS6485590 A JP S6485590A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- coil
- switch
- contact
- rotational speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Stopping Of Electric Motors (AREA)
Abstract
PURPOSE:To obtain the greatest braking force, even if a failure occurs in the control system of a motor, by detecting the rotational speed of said motor on the basis of a current flowing through a motor coil. CONSTITUTION:In the normal mode, a dynamic braking control circuit 5 connects a switch SW1 with a contact a1 by a control signal S1. Consequently, a motor driving circuit 1 supplies the coil L of a motor 2 with an exciting current to drive said motor 2. In the braking mode, the dynamic braking control circuit 5 connects the switch SW1 with a contact a2 by the control signal S1. In this case, when the rotational speed of the motor detected on the basis of a current flowing through the coil L is higher than a given reference value, the switch SW2 is transferred to a contact b1 to brake the motor by a CR parallel circuit. Also, when the rotational speed is lower than the reference value, said switch SW2 is transferred to the contact b2 side to brake a motor by shorting the coil L.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24293187A JPS6485590A (en) | 1987-09-28 | 1987-09-28 | Motor brake |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24293187A JPS6485590A (en) | 1987-09-28 | 1987-09-28 | Motor brake |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6485590A true JPS6485590A (en) | 1989-03-30 |
JPH0463632B2 JPH0463632B2 (en) | 1992-10-12 |
Family
ID=17096345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24293187A Granted JPS6485590A (en) | 1987-09-28 | 1987-09-28 | Motor brake |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6485590A (en) |
-
1987
- 1987-09-28 JP JP24293187A patent/JPS6485590A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0463632B2 (en) | 1992-10-12 |
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