CN205050774U - Time delay release control ware - Google Patents

Abstract

The utility model discloses a time delay release control ware. Including master control unit module, the power modul, voltage testing, contactor running state detection module, the control modul, structure including output module and the panel module, can realize through setting for different parameters that 0.3s can establish to 2.7s's delay time, 2.0V the holding voltage to 10.8V is adjustable, the independent export of reporting to the police has, the export of time release synchronization action, thereby reach and do not change current contactor control return circuit principle, do not participate in the contactor and normally divide closing operation, only just drop into when system voltage dip, the delay time can be set for, it detects the function to have device power failure, realize that the mesh of time release contactor function falls in system voltage temporarily.

Description

A kind of time delay release control device

Technical field

A kind of time delay release control of the utility model device, what relate to is voltage dip technical field, and particularly time release techniques field falls in contactor reactance voltage temporarily.

Background technology

Voltage dip/rapid drawdown (be commonly called as " shake electricity ") is that voltage effective value is down to 10% to 90% of nominal value, and the duration is 10ms to 1min(Typical duration is 10ms ~ 600ms) one of quality of power supply event.Serious voltage dip, power consumption equipment will be made to quit work, or cause production product quality decline, or cause all fronts of production line to stop, even there is explosion accident on fire, cause very large economic loss, in fields such as oil refining, petrochemical industry, chemical fibre, weaving, glass, iron and steel in order to meet the requirement of enterprise's consecutive production, make the production of enterprise from the impact of the factors such as instantaneous power-off, rolling electricity, power network fluctuation, technological means must be adopted to solve the problem.

The contactor of mechanical locker mode, permanent-magnet type A.C. contactor, uninterrupted power supply UPS is mainly taked to power and continued power pattern block (contactor) at present.The contactor of mechanical locker mode is with a kind of mechanical lock buckle device (being commonly called as snap close head); when combined floodgate runs; after the charged adhesive of contactor coil; mechanical lock buckle device adopts the mode of machinery lift to close main contact; motor normally runs, and during orderly closedown, needs in addition to mechanical lock buckle voltage signal of contactor; snap close is thrown off, releases main contact.Although the impact that voltage dip brings can be avoided, just difficult for very much if need to realize contactor sub-switching operation after system blackout maintenance disconnects higher level's switch.Permanent-magnet type power cut off delay contactor make use of the positive and negative of electricity, to produce the magnetic field of different directions and carrys out adhesive contactor.Permanent magnetic keeps contact pressure moment constant after making contact adhesive, not by the impact of voltage ripple of power network, but this contactor is owing to utilizing electromagnetic induction work, easily produces electromagnetic interference, therefore higher to the environment for use at scene, be not suitable for the environment having mass communication Signal transmissions.UPS uninterrupted power supply is powered to the control loop of contactor coil, and UPS supply line lays separately, and cost is high, if UPS breaks down, whole system may cause paralysis.Continued power pattern block utilizes inner accumulation power supply to provide sticking power supply when system generation voltage dip to contactor coil, and main noddle on contactor is kept.The adhesive of existing continuous power supply type module many employings high direct voltage, DC low-voltage sticking control ac contactor coil, complicated to control loop, to have far distance controlled point loop adopts DC low-voltage sticking, certain risk can be produced, a normal point closing operation for contactor also depends on continued power pattern block in addition, too increases the risk of control loop.

Utility model content

The purpose of this utility model is the various deficiencies of technology of falling temporarily to overcome existing reactance voltage, devise one not participate in the normal breaking-closing operating of contactor and control, just just drops into when system generation voltage dip and ac contactor coil sticking power supply is provided, delay time can be established, holding voltage is adjustable, band warning exports, action exports, has internal electric source on-line checkingi function time delay release control device.Its technical scheme adopted is: the structure composition comprising main control unit module, power module, voltage detection module, contactor condition monitoring module, control module, output module and panel module, it is characterized in that: voltage detection module, contactor condition monitoring module, control module, output module and panel module all with main control unit model calling, described panel module provides man-machine interface, is provided with delay time and the structure exiting time delay release; Described voltage detection module is provided with the structure that voltage dip detects; Described contactor running status module is provided with the structure that contactor operating state detects; Described control module is provided with the switching construction of contactor coil power supply; The core component of described main control unit module adopts MSP430F249 chip.

Implement obvious advantage and the effect of this technology: main control unit module performs mathematical calculations and logic analysis according to voltage, contactor running status, realize the function of the delayed releasing contactor when system generation voltage dip, power module provides whole installation's power source, whether voltage detection module detection system supply voltage there is voltage dip, whether contactor condition monitoring module detects contactor in running status, control module switching contactor coil power supply power supply, the various running status of panel module indicating device, setting device delay time, holding voltage parameter, output module provides outlet of reporting to the police, the outlet of voltage dip synchronization action, control module switching contactor coil holding voltage, time delay release control device feasible system voltage, contactor running status, the detection of power module operating state, the delay time that can be realized 0.3s to 2.7s by setting different parameters can be established, the holding voltage of 2.0V to 10.8V is adjustable, there is outlet of independently reporting to the police, the outlet of time delay release synchronization action, thus reach and do not change existing contactor control loop principle, do not participate in the normal breaking-closing operating of contactor, only just drop into when system generation voltage dip, delay time can set, with installation's power source fault detection capability, realize the object that delayed releasing contactor function falls in system voltage temporarily.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Wherein: 1-main control unit module, 2-power module, 3-voltage detection module, 4-contactor state detection module, 5-control module, 6-output module, 7-panel module.

Embodiment

Be further described of the present utility model below in conjunction with accompanying drawing:

See accompanying drawing 1, complete machine is all connected with main control unit module 1 by voltage detection module 2, contactor condition monitoring module 4, control module 5, output module 6 and panel module 7, described panel module 7 provides man-machine interface, is provided with delay time and the structure exiting time delay release; Described voltage detection module 3 is provided with the structure that voltage dip detects; Described contactor running status module 4 is provided with the structure that contactor operating state detects; Described control module 5 is provided with the switching construction of contactor coil power supply; The core component of described main control unit module 1 adopts MSP430F249 chip.

See accompanying drawing 1, during the normal breaking-closing operating of control loop, time delay release control device is just in the various state of detection, do not participate in controlling, all normal runnings are identical with not having time delay release control device loop, when contactor running status module (4) detects that contactor is in running status, when voltage detection module (3) detects system voltage generation voltage dip, main control unit module (1) sends instruction to control module (5), output module (6) and panel module 7, control module (5) switching contactor coil controls power supply, inner power supply is switched to by the system power supply that voltage dip occurs, keep in touch device coil not dead electricity, main contact does not discharge, the synchronization action relay synchronization action of output module (6), there is provided signal to other equipment or outer signal lamp, the corresponding indicator light of panel module (7) is lighted, after the delay time of setting arrives, main control unit module (1) sends instruction to control module (5), output module (6) and panel module (7), control module (5) controls power supply contactor coil and is switched to system power supply again, if system voltage has recovered normal, contactor coil is kept by system power supply, if the time of falling exceedes setting delay time to system voltage temporarily, system voltage does not recover normal, contactor coil dead electricity, main contact discharges, the synchronization action relay of output module (6) resets, the corresponding indicator light point of panel module (7) extinguishes, power module (2) provides the power supply of needs for modules.

Can according to different contactor model adjustment holding voltage at test phase, when making control module (5) switching contactor coil power supply voltage, the reliable sticking of contactor, when internal electric source breaks down, the warning outlet meeting action of output module (6), panel module (7) corresponding indicator light can be lighted, set delay time and the holding voltage of needs, can realize not changing existing contactor control loop principle, not participating in the normal breaking-closing operating of contactor, the time delay release control device of the time delay release function only just dropped into when system generation voltage dip.

Claims (1)

1. a time delay release control device, comprise main control unit module, power module, voltage detection module, contactor condition monitoring module, control module, output module and panel module form in interior structure, it is characterized in that: the delay time that can be realized 0.3s to 2.7s by setting different parameters can be established, the holding voltage of 2.0V to 10.8V is adjustable, there is outlet of independently reporting to the police, the outlet of time delay release synchronization action, do not change existing contactor control loop principle, do not participate in the normal breaking-closing operating of contactor, only just drop into when system generation voltage dip, delay time can set, with installation's power source fault detection capability, realize the function that delayed releasing contactor falls in system voltage temporarily.