Safety control device
A safety controller and safety technology, applied in the direction of program control, computer control, general control system, etc., can solve the problems of inventory management costs, troubles in ordering, and rising costs.
Inactive Publication Date: 2004-08-18
NIPPON SEIGYO KIKI +1
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Problems solved by technology
However, since a dedicated unit is required for each type of safety switch, in order to cope with a safety system including various safety switches, it is necessary to purchase a dedicated safety relay set for each type of switch. Ordering is troublesome and inventory management is troublesome. lead to higher costs
In addition, when adding equipment in the production line, etc., it is necessary to purchase a relay group corresponding to the newly added safety switch every time, resulting in an increase in cost.
[0007] In addition, in the CPU built-in type safety relay group that can be applied to various safety switches described in Patent Document 1, since it can be applied to only one safety switch, in order to cope with safety systems including multiple safety switches , requiring multiple safety relay groups with built-in CPUs respectively, resulting in a significant increase in cost
Method used
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[0086] Next, an embodiment of the safety controller of the present invention will be described in detail with reference to the drawings.
[0087] Fig. 1 shows a perspective view of the appearance of all the modules of the safety controller installed, Fig. 2 shows a perspective view of the appearance of the safety controller with the expansion modules pulled out, and Fig. 3 shows the connection of a personal computer to the controller A diagram of the system appearance of the state.
[0088] As can be seen from these figures, the safety controller 1 includes a basic module 2 , an input extension module 3 , and an output extension module 4 . These modules 2, 3, 4 are positioned and fixed in a row state through the module holder 5. The module holder 5 is a box-shaped case with an open top, and a DIN rail fitting groove 51 and a DIN rail fixing part 52 are arranged at the bottom. Therefore, the module holder 5 can be attached to a DIN rail not shown. In addition, in the illustr...
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A basic module has operation program storing part for prescribing the relation between the state of a safety input signal to be fetched from external input terminal sections and the state of a safety output signal to be transmitted to external output terminal sections for each type of predetermined safety switches, type-of-switch setting part for setting external input terminal sections and the type of safety switches to be connected to the external input terminal sections, and operation program executing part for selecting a safety operation program corresponding to the type of the switch set by the setting part among a plurality of types of safety operation programs stored in the operation program storing part and executing the selected program for the external input terminal sections set by the setting part.
Description
technical field [0001] The present invention relates to a safety controller suitable for constituting a safety system (work safety system) in a factory, and in particular to a safety controller which is implemented between various safety switches and production equipment constituting a source of danger to avoid exposure of workers, etc. Safety controllers for the control of dangerous situations. Background technique [0002] Various safety controllers are used to configure safety systems in factories. The basic function of this safety controller is in various safety switches (such as emergency stop switch, two-hand operation switch, mat switch, safety limit switch, light curtain, electromagnetic lock safety door lock switch, etc.) Between production equipment (robots, machine tools, conveyors, etc.) that constitute a source of danger, control such as judging that workers are exposed to danger and stopping the production equipment is performed. [0003] As a conventional sa...
Claims
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IPC IPC(8): G05B15/02G05B19/02G05B19/04G05B19/05H02H3/00
CPCG05B19/058G05B2219/14114G05B2219/1109
Inventor 河津武玄樋口敏之竹内寿高市隆一郎川池襄
Owner NIPPON SEIGYO KIKI