# US 12,112,904 B2 · Teaching pendant of an electromechanical system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,112,904 B2 - Document ID: US12112904B2 - Status: Granted - Kind: B2 - Application number: 17/583,535 - Filed: 2022-01-25 - Published: 2023-07-27 - Granted: 2024-10-08 - Earliest claimed: 2022-01-25 - Assignees: Hiwin Technologies Corp. - Applicants: Hiwin Technologies Corp. - Inventors: Yen-Shun Huang; Yi-Hung Chen; Shun-Kai Chang - Web page: https://patentgrep.com/patent/US12112904B2 ## CPC - B25J 9/1674: {characterised by safety, monitoring, diagnostic} - H01H 3/022: {Emergency operating parts, e.g. for stop-switch in dangerous conditions} - G05B 9/02: electric - H01H 47/002: {Monitoring or fail-safe circuits} - H01H 9/167: {Circuits for remote indication} - B25J: MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES ({manipulators specially adapted for use in surgery A61B34/70; manipulators used in cleaning hollow articles B08B9/04}; manipulators associated with rolling mills B21B39/20; manipulators associated with forging machines B21J13/10; {manipulators associated with picking-up and placing mechanisms B23P19/007}; means for holding wheels or parts thereof B60B30/00; {vehicles with ground-engaging propulsion means, e.g. walking members B62D57/02, B62D57/032; devices for picking-up and depositing articles or materials between conveyors B65G47/90, B65G47/91; manipulators with gripping or holding means for transferring packages B65H67/065}; cranes B66C; {manipulators used in the protection or supervision of pipe-line installations F17D5/00; walking equipment adapted for nuclear steam-generators F22B37/006}; manipulators specially adapted for, or associated with, nuclear reactors G21C; {apparatus used for handling wafers during manufacture or treatment of semiconductor H10P72/50}) - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) - G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G) ## Abstract The teaching equipment of an electromechanical system provided by the present invention is used to connect an emergency stop loop of electromechanical equipment, including a multi-stage key switch, an enabling switch and a safety control device. The multi-stage key switch is used to switch between a first mode and a second mode. The multi-stage key switch generates a switching signal during switching. The enabling switch is connected to the emergency stop loop. The safety control device is used to receive the switching signal. The safety control device includes a transient emergency stop circuit and a disconnection loop time. The safety control device triggers the emergency stop loop to enter the emergency stop state according to the switching signal. The emergency stop state includes that the transient emergency stop circuit interrupts the emergency stop loop until the disconnection loop time is up. ## Claims ### Claim 1 A teaching pendant, connected to an emergency stop loop of electromechanical equipment, comprising: a multi-stage key switch comprising a first mode and a second mode, and being used to switch between said first mode and said second mode, said multi-stage key switch generating a switching signal when switching; an enabling switch connecting to said emergency stop loop of the electromechanical equipment; and a safety control device connected to said multi-stage key switch and used to receive said switching signal of said multi-stage key switch, said safety control device comprising a transient emergency stop circuit and a disconnection loop time, said transient emergency stop circuit connecting said emergency stop loop of the electromechanical equipment, said safety control device triggering said emergency stop loop to enter an emergency stop state according to said switching signal, during said emergency stop state said transient emergency stop circuit interrupts said emergency stop loop of the electromechanical equipment until the disconnection loop time is completed. ### Claim 2 (depends on 1) The teaching pendant as claimed in claim 1, wherein when said multi-stage key switch is in said first mode, said enabling switch comprises an operating mode and a disconnection mode; when said operating mode is switched to said disconnection mode, said enabling switch interrupts said emergency stop loop so that said emergency stop loop enters said emergency stop state. ### Claim 3 (depends on 1) The teaching pendant as claimed in claim 1, wherein said first mode comprises a first process for point teaching, trial implementing and program creating of the electromechanical equipment, said second mode comprises a second process for performing automated operations in the electromechanical equipment. ### Claim 4 (depends on 1) The teaching pendant as claimed in claim 1, wherein said emergency stop loop comprises an emergency stop switch. ### Claim 5 (depends on 1) The teaching pendant as claimed in claim 1, wherein said safety control device comprises a receiving circuit and a judgment circuit, said receiving circuit receiving said switching signal, said judgment circuit being connected to said receiving circuit and said transient emergency stop circuit and judging that said switching signal corresponds to said first mode or said second mode. ### Claim 6 (depends on 5) The teaching pendant as claimed in claim 5, wherein said receiving circuit is used to adjust said disconnection loop time. ### Claim 7 (depends on 5) The teaching pendant as claimed in claim 5, wherein said emergency stop loop comprises an emergency stop switch, said safety control device further comprises a bridge circuit connected to said emergency stop loop, said enabling switch and said judgment circuit, and is connected with said enabling switch in parallel, in said second mode, said emergency stop switch and said bridge circuit forming a bypass circuit.