OUTPUT MODULE FOR PROGRAMMABLE CONTROLLER

• US 20160028221A1
• Filed: 07/27/2015
• Published: 01/28/2016
• Est. Priority Date: 07/28/2014
• Status: Active Grant

• Current Assignee: Fanuc Corporation
• Original Assignee: Fanuc Corporation
• Inventors: YAMANAKA, Masashi
• Granted Patent: US 9,983,608 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G05F 1/625 wherein it is irrelevant whether the variable actually regulated is ac or dc

Abstract

An output module for programmable controller includes an output common output circuit that supplies load current to each of the load output circuits, and the control circuit controls ON/OFF of the output common output circuit in accordance with an instruction from the higher-level device.

Claims

1. An output module for programmable controller, comprising:

a control circuit configured to receive an instruction from a higher-level device;

load output circuits configured to receive an ON/OFF instruction from the control circuit and control current flowing through a load connected; and

an output common terminal, to which an external power supply for load configured to supply load current to each of the load output circuits is configured to be connected, wherein

the output module further includes an output common output circuit configured to supply load current to each of the load output circuits, and

the control circuit is configured to control ON/OFF of the output common output circuit in accordance with an instruction from the higher-level device.

2. The output module for programmable controller according to claim 1, further comprising a terminal, to which an external device is configured to be connected, the external device outputs a control signal to turn ON/OFF for the output common output circuit.

3. The output module for programmable controller according to claim 1, wherein the output common output circuit internally includes a monitoring circuit configured to monitor a voltage value and a current value at an ON time.

4. The output module for programmable controller according to claim 2, wherein the output common output circuit internally includes a monitoring circuit configured to monitor a voltage value and a current value at an ON time.

5. The output module for programmable controller according to claim 3, wherein when overvoltage, disconnection to a power supply, overcurrent or ground fault occurs at the output common output circuit, the monitoring circuit transmits a status of the output common output circuit to the control circuit, and the control circuit transmits the status of the output common output circuit to the higher-level device.

6. The output module for programmable controller according to claim 4, wherein when overvoltage, disconnection to a power supply, overcurrent or ground fault occurs at the output common output circuit, the monitoring circuit transmits a status of the output common output circuit to the external device and the control circuit, and the control circuit transmits the status of the output common output circuit to the higher-level device.

7. The output module for programmable controller according to claim 3, wherein the output common output circuit internally includes an forcible-OFF circuit to turn OFF the output common output circuit forcibly, and

when overvoltage, disconnection to a power supply, overcurrent or ground fault occurs at the output common output circuit, the monitoring circuit transmits a status of the output common output circuit to the control circuit, the control circuit transmits the status of the output common output circuit to the higher-level device, and the forcible-OFF circuit turns OFF the output common output circuit forcibly.

8. The output module for programmable controller according to claim 4, wherein the output common output circuit internally includes an forcible-OFF circuit to turn OFF the output common output circuit forcibly, and

when overvoltage, disconnection to a power supply, overcurrent or ground fault occurs at the output common output circuit, the monitoring circuit transmits a status of the output common output circuit to the external device and the control circuit, the control circuit transmits the status of the output common output circuit to the higher-level device, and the forcible-OFF circuit turns OFF the output common output circuit forcibly.