JPH0363213U

JPH0363213U -

Info

Publication number: JPH0363213U
Application number: JP1989122756U
Authority: JP
Priority date: 1989-10-20
Filing date: 1989-10-20
Publication date: 1991-06-20

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示すサーボドライ
ブ装置のブロツク図、第２図は同サーボドライブ
装置の非常停止リセツト制御回路図、第３図ａ，
ｂ，ｃはそれぞれ同サーボドライブ装置の非常停
止後のリセツト時における各要部の波形図であり
、第３図ａは指令速度およびＡＣサーボモータの
回転速度を示す図、第３図ｂは指令トルクを示す
図、第３図ｃはタイマ設定時間によるリレー励磁
時間を示す図、第４図は従来のサーボドライブ装
置のブロツク図、第５図は同サーボドライブ装置
における指令速度およびＡＣサーボモータの回転
速度を示す波形図、第６図ａ，ｂはそれぞれ同サ
ーボドライブ装置の非常停止後のリセツト時にお
ける各要部の波形図であり、第６図ａは指令速度
およびＡＣサーボモータの回転速度を示す図、第
６図ｂは指令トルクを示す図である。２……偏差カウンタ、７……ＡＣサーボモータ
、１１……ＡＣサーボドライバー、１２……可変
抵抗器、１３……非常停止押釦スイツチ、１４…
…非常停止リセツトスイツチ、ｂ……指令パルス
、ｄ……位置フイードバツクパルス、ＴＲ……タ
イマ、ＴＲａ……タイマ接点、Ｘ……リレー、Ｘ
ａ……リレー接点。 Fig. 1 is a block diagram of a servo drive device showing an embodiment of the present invention, Fig. 2 is an emergency stop reset control circuit diagram of the servo drive device, and Figs.
b and c are waveform diagrams of the main parts of the same servo drive device at the time of resetting after an emergency stop, respectively. Fig. 3 a is a diagram showing the command speed and the rotational speed of the AC servo motor, and Fig. 3 b is a diagram showing the command speed and the rotation speed of the AC servo motor. Fig. 3c is a diagram showing the relay excitation time according to the timer setting time, Fig. 4 is a block diagram of a conventional servo drive device, and Fig. 5 is a diagram showing the command speed and AC servo motor in the same servo drive device. Waveform diagrams showing the rotational speed, Figures 6a and 6b are waveform diagrams of each main part at the time of resetting after an emergency stop of the same servo drive device, respectively, and Figure 6a shows the command speed and the rotational speed of the AC servo motor. FIG. 6b is a diagram showing the command torque. 2... Deviation counter, 7... AC servo motor, 11... AC servo driver, 12... Variable resistor, 13... Emergency stop push button switch, 14...
...Emergency stop reset switch, b...Command pulse, d...Position feedback pulse, TR...Timer, TRa...Timer contact, X...Relay,
a...Relay contact.

Claims

[Scope of utility model registration request]

A servo drive device in which a command pulse corresponding to a set target position and speed and a position feedback pulse detected from a servo motor are input to a deviation counter, and a servo driver controls the rotation of the servo motor based on the deviation signal. A servo drive device comprising means for controlling the torque of the servo driver to the motor for a certain period of time when the servo motor is reset after an emergency stop by the servo driver.