METHOD AND DEVICE FOR OPERATING AN AUTOMATION MACHINE

• US 20110316335A1
• Filed: 12/16/2010
• Published: 12/29/2011
• Est. Priority Date: 12/17/2009
• Status: Abandoned Application

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Bretschneider, Jochen, Kaever, Michael, König, Michael
• Application Number:
  US12/970,278
• Publication Number:
  US 20110316335A1
• Time in Patent Office: Days
• US Class Current: 307/11
• CPC Class Codes: G05B 19/4063 Monitoring general control system G05B19/4062 takes precedence
• CPC Class Codes: G05B 2219/32021 Energy management, balance and limit power to tools
• CPC Class Codes: Y02P 70/10 Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

An automation machine with a plurality of electric energy loads and a method for operating an automation machine is disclosed. The automation machine is operated by controlling, with a machining program, a machining operation carried out with the automation machine on at least one item and having at least one machining step, determining the active electric power consumed by the plurality of energy loads, and determining from the determined active electric power consumed by the plurality of energy loads the electric energy consumed by the machine or by the plurality of energy loads for at least one of a machined item, a machining step and a pass through the machining program. The lowest electric energy consumption can be determined by comparing different machining operations, with a future machining operation to be controlled with the machining program having the lowest electric energy consumption, enabling energy-efficient operation of an automation machine.

Claims

1. A method for operating an automation machine having a plurality of electric energy loads, comprising the steps of:

controlling with a machining program a machining operation carried out with the automation machine on at least one item, the machining operation having at least one machining step,

determining the active electric power consumed by the plurality of energy loads, and

determining from the determined active electric power consumed by the plurality of energy loads the electric energy consumed by the machine or by the plurality of energy loads for at least one of a machined item, a machining step and a pass through the machining program.

2. The method of claim 1, further comprising the steps of:

monitoring the electric energy consumed by the machine or by the plurality of energy loads, and

determining whether an associated limit value for the electric energy is overshot or undershot.

3. The method of claim 1, wherein the electric energy consumed by the machine or the plurality of energy loads is stored in a manner commensurate with the machining program.

4. The method of claim 3, further comprising the steps of:

comparing the electric energy consumed by the machine or the plurality of energy loads with previously consumed electric energy that was stored when making a prior pass through the same machining program,

monitoring a difference between the consumed electric energy and the stored electric energy, and

determining whether the monitored difference exceeds a permissible difference.

5. The method of claim 3, further comprising the step of:

comparing the electric energy consumed by the machine or the plurality of energy loads with previously consumed electric energy that was stored when making a prior pass through at least one different machining program.

6. The method of claim 5, further comprising the step of:

determining a lowest electric energy consumption from the comparison, and

controlling a future machining operation with the machining program having the lowest electric energy consumption.

7. The method of claim 1, wherein the active electric power consumed by the energy loads is determined using at least one of electrical and mechanical parameters, models and an evaluation of states of the energy loads.

8. The method of claim 1, further comprising the step of:

storing the electric energy consumed by the machine or the plurality of energy loads during a time period when the machine is not performing a machining operation.

9. The method of claim 1, further comprising the step of:

displaying the electric energy consumed by the machine or the plurality of energy loads.

10. A device for operating an automation machine having a plurality of electric energy loads, comprising:

a control unit comprising a machining program with control commands controlling a machining operation carried out by the machine on at least one item,

a plurality of drive units connected to the control unit and receiving data from the control unit, wherein the electric energy loads are connected in one-to-one correspondence with the drive units,

a plurality of measuring devices associated in one-to-one correspondence with the electric energy loads and measuring active electric power consumed by the electric energy loads, with the measuring devices transmitting the measured active electric power consumed by the electric energy loads to the drive unit for transmission to the control unit, and

an evaluation unit connected to the control unit and configured to determine, from the determined active electric power consumed by the plurality of energy loads, the electric energy consumed by the machine or by the plurality of energy loads for at least one of a machined item, a machining step and a pass through the machining program.

11. The device of claim 10, further comprising an operating unit connected for data exchange with the control unit.

12. The device of claim 11, wherein the operating unit comprises a display.