Abstract: An optical fiber unit includes: an assembly in which a plurality of optical fiber ribbons in which a plurality of optical fibers are disposed in parallel are assembled; and a coating for covering the periphery of the assembly in a state of having a space inside. The coating is interrupted at a part in a circumferential direction of the optical fiber unit, and an opening part is formed.

Abstract: Provided is an intermittently coupled-type optical fiber ribbon in which, in a state where a plurality of optical fibers are arranged in parallel, coupling portions at which adjacent optical fibers are coupled by a coupling resin and non-coupling portions at which the adjacent optical fibers are not coupled are intermittently provided in a longitudinal direction, the coupling portions and the on-coupling portions being provided between some or all of the plurality of optical fibers, in which at least some of the non-coupling portions include a convex portion of the coupling resin, a tip end of the convex portion having an acute angle in a cross-sectional view in a direction orthogonal to the longitudinal direction.

Abstract: An optical fiber cable includes: a plurality of ribs formed along a longitudinal direction of a cable; and a slot core in which a slot grove for housing an optical fiber ribbon is formed between the ribs. In the slot groove, a plurality of optical fiber ribbons are bundled and a plurality of subunits whose periphery is wound with a bundle material are provided, and the bundle materials between the plurality of subunits are bonded to each other.

Abstract: The present invention makes it possible to reduce a load associated with transfer of parameters. A control system is equipped with first and second controllers connected to a network, and a drive apparatus for driving a motor in accordance with an instruction from the first controller. The drive apparatus includes a memory that stores a safety program for implementing a safety function, and a parameter group referenced by this program. The second controller transmits an instruction related to work of the safety function to the drive apparatus. A support apparatus capable of being connected to the network generates the parameter group, and reduces a size of the parameter group when this parameter group is transferred to the drive apparatus in order that the parameter group can be restored by the drive apparatus.

Abstract: An optical fiber cable includes a plurality of intermittently connected optical fiber ribbons inside a cable sheath, in which a fibrous filler or an FRP using the fibrous filler is provided on at least one pair of diagonals of the two diagonal directions approximately orthogonal to each other inside the cable sheath. An average linear expansion coefficient of the fibrous filler at ?40° C. to +70° C. is smaller than an average linear expansion coefficient of the cable sheath at ?40° C. to +70° C.

Abstract: The present disclosure includes: an optical fiber ribbon including a plurality of optical fibers having an outer diameter of 0.2 mm or less and a ribbon resin that integrates the plurality of optical fibers in a parallel state; and a coating resin that covers the optical fiber ribbon. The optical fiber ribbon is in an assembled form in which the plurality of optical fibers are assembled so that a length in an arrangement direction is shorter than that of a case where the optical fibers are arranged in a row, and the optical fiber ribbon is covered with the coating resin in the assembled form.

Abstract: A control system is provided with safety drivers having motion safety functions, a safety controller for outputting a safety command to the safety drivers according to a safety program, and with a support device, wherein the safety program includes information for disabling particular motion safety functions and wherein the support device includes: a reception unit for receiving a designation, given by a user, of enabling or disabling for each of the motion safety functions; a generation unit for generating the safety program in accordance with the designation; and a transfer unit for transferring the safety program to the safety controller.

Abstract: A control system for monitoring a control state of a target device that receives drive control by a motor includes a setting unit that sets an origin for position monitoring of the target device and a sensor that detects the target device reaching a predetermined position. The setting unit includes an obtainer that obtains, under predetermined drive control over the target device by the motor, leading and trailing edges in a detection signal from the sensor in response to the target device reaching the predetermined position, and a calculator that calculates the origin using first position information associated with a target device position and calculated based on the leading and trailing edges in the detection signal and second position information associated with the target device position and different from the first position information.

Abstract: A slot type optical cable includes: an optical fiber; a slot rod that includes a plurality of ribs forming a groove in which the optical fiber is accommodatable; and a cable jacket that is provided around the slot rod. The cable jacket includes a sheath portion that is formed around the slot rod at substantially the same thickness by linearly connecting outermost peripheral edges of adjacent ribs.

Abstract: Provided is a manufacturing method of an optical fiber ribbon for manufacturing an intermittent-connection-type optical fiber ribbon including a connection part and a non-connection part. The manufacturing method includes: a release agent applying process of intermittently applying a release agent for preventing optical fibers from being bonded to each other with a connection resin in a longitudinal direction of the optical fibers in a state where the optical fibers are arranged in parallel; and a connection resin applying process of allowing the optical fibers in the state of being arranged in parallel to pass through a die for applying the connection resin around the optical fibers after the release agent applying process, and of curing the connection resin.

Abstract: A control system is provided with safety drivers having motion safety functions and with a standard controller that manages data exchanges among devices connected to a field network, wherein: when a connection in the field network is established, the standard controller transmits SRA parameters to the safety drivers via the field network, the SRA parameters including designation information to designate enabling or disabling for each of the motion safety functions; and the safety drivers disable particular motion safety functions that are designated to be disabled by the designation information.

Abstract: In order to improve usability during parameter adjustment, this adjustment device performs a simulation in which a set value of a servo parameter received during a slide operation period of a slider bar is reflected in a FFT analysis result of response characteristics of speed control or position control, and the simulation display of the frequency characteristics and phase characteristics is updated on the adjustment screen.

Abstract: Provided is a control system which can support a user with respect to the designation of a data group to be collected. The control system (1) includes: first and second controllers (100, 200); a drive device (300) which has a plurality of safety functions for a motor (400); a data tracing module (154) which traces a state value for indicating an operation state of the motor (400); and a support device (500) which receives a setting of the data group to be collected including the state value. The support device (500) includes: a storage (510) which stores collection candidate information in which a data group of collection candidates is associated with a type of a safety function; and an output section (508) which outputs, as the data group to be collected, the data group of collection candidates associated with one selected safety function.

Abstract: Provided is a control system that outputs determination information on whether or not safety function specifications are satisfied. The control system includes: first and second controllers (100, 200); a drive device (300); and a data tracing module (154) that traces a state value indicating an operation state of a motor (400). The drive device (300) includes: a storage for storing safety parameters related to safety functions; and a control device (311) that stops driving of the motor (400) on the basis of the safety parameters and the state value indicating the operation state of the motor (400). The control system further includes: a support device (500) that displays the safety parameters while overlapping a tracing result of the state value obtained by the data tracing module (154).

Abstract: In order to improve usability during parameter adjustment, this adjustment device performs a simulation in which a set value of a servo parameter received during a slide operation period of a slider bar is reflected in a FFT analysis result of response characteristics of speed control or position control, and the simulation display of the frequency characteristics and phase characteristics is updated on the adjustment screen.

Abstract: An optical fiber unit includes: an assembly in which a plurality of optical fiber ribbons in which a plurality of optical fibers are disposed in parallel are assembled; and a coating for covering the periphery of the assembly in a state of having a space inside. The coating is interrupted at a part in a circumferential direction of the optical fiber unit, and an opening part is formed.

Abstract: The present disclosure includes: an optical fiber ribbon including a plurality of optical fibers having an outer diameter of 0.2 mm or less and a ribbon resin that integrates the plurality of optical fibers in a parallel state; and a coating resin that covers the optical fiber ribbon. The optical fiber ribbon is in an assembled form in which the plurality of optical fibers are assembled so that a length in an arrangement direction is shorter than that of a case where the optical fibers are arranged in a row, and the optical fiber ribbon is covered with the coating resin in the assembled form.

Abstract: An optical fiber cable includes: a plurality of ribs formed along a longitudinal direction of a cable; and a slot core in which a slot grove for housing an optical fiber ribbon is formed between the ribs. In the slot groove, a plurality of optical fiber ribbons are bundled and a plurality of subunits whose periphery is wound with a bundle material are provided, and the bundle materials between the plurality of subunits are bonded to each other.

Abstract: Provided is a polyethylene resin for use in a spacer for an optical fiber cable, the polyethylene resin having a density of 0.952 g/cm3 or more, containing a polyethylene having a molecular weight of 10,000 or less in a weight fraction of 22% or more, and containing a polyethylene having a molecular weight of 300,000 or more in a weight fraction of 12% or more.

Abstract: Provided is an optical fiber cable that is easier to be laid and enables higher-density packaging than an existing cable. This optical fiber cable is a slotless type optical fiber cable including: an optical unit formed by collecting and twisting a plurality of optical fibers or ribbons each formed by arranging the plurality of optical fibers; a cable core housing the optical unit; and a cable jacket provided around the cable core, and a tension member made of a fiber body within the cable core.