The basic measure that transducer debugs

The power that installs electric machinery, extremely several, want to consider the working electric current of transducer integratedly. 2.

Torsion of the frequency of the biggest output of set transducer, fundamental frequency, setting is characteristic. General transducer all many VPf curve offers stock user choice, the user occupies laden property to choose appropriate VPf curve in use Shi Yinggen. If be fan and pump kind laden, should move the torsion of transducer code to be installed change torsion and fall torsion runs character. To improve the low speed performance when transducer is started, the torsion that makes electric machinery is outputted can satisfy the requirement that manufacturing load starts, want to adjust the torsion that start. In system of frequency control of asynchronous electric machinery, the control of torsion is more complex. In low frequency paragraph, the influence that resists as a result of resistor, leakage of electricity nots allow oversight, if still maintain VPf to be constant, criterion magnetic flux will be reduced, reduced the output torsion of electric machinery then. For this, in low frequency paragraph should have proper compensation to voltage in order to promote torsion. General transducer all is undertaken by the user artificial set is compensated. 3.

Operate transducer setting mode for the clavier that takes oneself, by moving key, stop key, whether can be observation electric machinery started normally, stop. 4.

Familiar transducer runs the protective code when malfunctioning, observation heats up those who protect relay to leave factory value, observe the set that overload protects is worth, can revise when need. The makes the member that servantchoose a person for a job can press transducer operation instruction handbook of transducer heats up relay to the electron of transducer the function has set. When the output of transducer electric current exceeds his when concessional electric current, the crosses voltaic protection to will cut off transducer output of transducer. Accordingly, the door of transducer electron hot relay is restricted the electric current of the biggest concessional output that maximum does not exceed transducer. 3, belt carry try move 1.

The hand moves those who operate transducer face plate to move stop key, observe electric machinery runs those who stop process and transducer to show a window, look to whether have unusual appearance. 2.

If start P to stop the transducer in electric machinery process to had appeared to shed protective act, should reset quickens P slowdown time. Electric machinery is being added, the acceleration when decelerate depends on quicken torsion, and transducer is in open, the frequency change ratio in process of apply the brake is user set. If electric machinery moment of inertia or electric machinery load change, by beforehand the frequency change rate of set rises fast or when decelerate, appear likely quickly torsion is insufficient, cause electric machinery stall thereby, namely electric machinery rotate speed and transducer output frequency are not harmonious, had caused electric current or overvoltage thereby. Accordingly, need is added according to electric machinery moment of inertia and laden and reasonable set, slowdown time, make the frequency change ratio of transducer can change with electric machinery rotate speed rate is harmonious. Checking the method with this whether reasonable set is to press experience make choice of to add first, slowdown time has set, if had appeared to flow in the process that start, can lengthen appropriately quicken time; If had appeared to flow in process of apply the brake, extend slowdown time appropriately. On the other hand, add, slowdown time is unfavorable set is too long, time is too long produce the effect efficiency, open often especially, when apply the brake. 3.

If transducer still is protected inside definitive time, should change inactive of the P that start to run a curve, from line of form of linear instead S, U look or S form, counter U look line. Electric machinery load is inertial bigger when, should use the longer stopping time that start, and according to its load performance setting runs curvilinear kind. 4.

If transducer still is put in operational failure, the protection that should try to increase the biggest electric current is worth, but irrevocable protection, should stay have at least 10% ～ the protective surplus of 20% . 5.

If transducer operational failure still happens, should change bigger the transducer of one class power 6.

If transducer drives electric machinery to set rate beforehand in the short of in the process that start, the likelihood has two kinds of cases: (1) resonance of systematic happening Electromechanical, the sound that can run from electric machinery undertakes judging. Use the method that setting frequency leap is worth, can keep away from resonance dot. General transducer can set hop jumps a point. When electric machinery of asynchronous of drive of VPf pilot transducer, in certain frequency paragraph, the electric current of electric machinery, rotate speed can produce vibration, serious when the system cannot move, voltaic protection has appeared to make in accelerating a process even electric machinery cannot be started normally, carry gently in electric machinery or when moment of inertia is lesser more serious. Common transducer all stock frequency is crossed jump function, the user can be nodded according to the frequency of systematic occurrence oscillation, on VPf curve the setting is crossed jump dot and cross jump width. Can jump over these frequency automatically when electric machinery is quickened paragraph, make sure the system can move normally. (2) the torsion output capacity of electric machinery is insufficient, the transducer of different brand leaves factory parameter setting is different, below same condition, belt carry ability to differ, control a method possibly also to differ because of transducer, the area that creates electric machinery carries ability to differ; Or because of systematic output efficiency differs, cause belt carry ability to meet somewhat difference. To this kind of circumstance, can increase torsion to promote the value of the quantity. If short of, usable hand moves torsion to promote a function, not set is too big, electric machinery at this moment temperature rise can increase. If still be no good, should convert new control method, for instance day establishs transducer to use the method with VPf constant ratio, when the short of that start asks, convert control a method without vector of speed sensor space, it has bigger torsion to output ability. To fan and pump kind laden, should decrease fall the curvilinear value of torsion. 4, transducer and go up a machine be linked together undertake the system is debugged after basic set finishs manual, if have in the system,go up a machine, the control line transducer is direct with go up a machine control line be linked together, control the terminal of operation mode instead of transducer. According to going up the need of an engine system, the span that setting transducer receives frequency signal terminal 0 ～ 5V or 0 ～ 10V, and the transducer response to sampling of imitate frequency signal speed. If need another surveillance to express a head, should choose the surveillant quantity that imitate exports, adjust transducer to output surveillance to measure the span of terminal. CNC Milling CNC Machining