I am trying to wire up a two speed 6 wire 3 phase motor to run at its highest speed. A three wire three phase circuit is usually more economical than an equivalent two wire.
How To Connect 3 Phase Motors In Star And Delta Connection
Six wire two speed motor circuit. The motor has a 4mu 250volt capacitor. The electric motor is a bm 122 decomin brand 3 speed motor. There are 6 wires. Two speeds one direction three phase. Two speed electric motors operate in one of two ways. Wire a single pole double throw spdt switch into the circuit between the motor and the wall socket and you can change the.
Six wire three phase electric motors are dual voltage motors. Aug 27 2013 2 i think its. In many instances the low and high speed coils share an external wire. When the stop button is pressed contact td 1 waits for the specified amount of time before returning to its normally closed state thus holding the reverse pushbutton circuit open for the duration so m 2 can. Additionally the low speed coil is typically supplied by a red wire while the high speed coil is fed by a black wire. One terminal is the ground another common and the third and fourth are for fast and slow speeds.
It has four terminals. Since you have to choose between the speeds using a two speed motor switch its impossible for both coils to become energized simultaneously. One contactor burnt for high speed and a replced contactor does not engange originally the coils re fed with a nutural and the one i replaced is only working with a phase. The motor uses a start and run capacitor. However the wiring to the motor is the same. Wiring diagram for two speed moto explained.
Multi speed 3 phase motor 3 speeds 1 direction power control diagrams. Read about motor control circuits ladder logic in our free electronics textbook network sites. Like subscribe and dont skip the ads siemens logo tutorials. Also for programming the vfd the highest speed setting would mean using 2 pole 43 amps and 1720 rpm. I decided to change controls to a simple. Joined aug 5 2011 messages 1567.
Please help how to go about this. Power and control circuit for 3 phase two speed motor. Since a two speed motor relies on different coils to produce different speeds there are usually two input wires. Below is the motor data plate and whats left of the wiring diagram. 2 green blue 1 low speed 2 mid speed 3 high speed green brown diagram ic1 3ø wiring diagrams 1ø wiring diagrams diagram er9 m 3 1 5 9 3 7 11 low speed high speed u1 v1 w1 w2 u2 v2 tk tk thermal overloads two speed stardelta motor switch m 3 0 10v 20v 415v ac 4 20ma outp uts diagram ic2 m 1 240v ac 0 10v outp ut diagram ic3 m 1 0. I am trying to wire up a two speed 6 wire 3 phase motor to run at its highest speed.
This special motors have 6 wires and depending of the connection could run at high or low speed at only one voltage in your case the high speed is 3550 and the low is 1770 rpm. The above name plate belongs to one single windingtwo speed motor. Kindly email me the diagrams for star deltor and direct online for a 3speed 1directon 3ph motor have two of them in a bow cutter. This fan has an oscillating grill with independent sync motor and timer circuit. Two separate windings designed to rotate the motor at two different speeds or inbuilt resistors which alter the voltage supplied to windings. The motor will supply the same amount of power but with a different load.
And the main voltage is 480 v. Please let me know if im right or wrong. This being the case the normally closed timed closed contact of td 1 between wires 8 and 5 will have immediately opened the moment td 1 was energized. Two speeds two directions multispeed 3 phase motor power control diagrams. I believe i need to wire u1 v1 w1 to power and leave u2 v2 w2 disconnected. Something was wrong with the solid state circuitry everything worked but the motor but a quick test of the motor indicated it does work.
Gallery of Six Wire Two Speed Motor Circuit
