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INSTRUCTION MANUAL ON MYVP SERIES AC INVERTERTHREE PHASE INDUCTION MOTORS

. GENERALDESCRIPTIONS

MYVP series inverter three-phase asynchronous motor has the excellence performance on simply structure,convenient maintenance,the better starting function,the higher overload capacity,etc.

Motors with special cooling blower and fanthat help to cool the complete motor.the protection class is IP54.It is normalno-proof-explosion structure.

It satisfy the requirement of keeping constant torque running below frequency 50Hz and keeping constant output above frequency 50Hz,and reach the purpose that improve the whole system efficiency.

. USAGE CONDITION

The operating conditions are as follows:

1. Altitudenot excessive 1000m

2. Ambient temperature-15℃~+40;humidity20%90%

3. Rated Voltage380V;Rated Frequency50Hz;Allowed Usage Frequency550Hz

4. The motor is permitted to be startedunder full voltage.

5. The motor is permitted to be braked by electricity and machine.

6. Motors should have the rainproof canopy when used outdoor.

. PREPARATION WORKBEFORE INSTALLATION

1. After opening the packing,please checkand sure if all components are available or if the motor is damaged or motor got wet.

2. Carefully check and sure if the motor has been damaged or there are some nuts and bolts getting loose or falling down after long-time transportation.Carefully clean the dust or rust that may behave inside.Rotate shaft by hand to confirm shaft running smoothly and freely.

3. Measure the insulation resistance with 500V megger and its reading should be not lower than 0.5MΩ,otherwise the stator winding should be dryness treatment.The dryness temperature should not exceed 120.

4. Before connecting power cables to terminal box,please check the copper terminals for leading cables,if there aresome loose,please fasten the nuts on the terminal block and then fasten the nuts for power cables to sure that all connections are well done.

5. Before running the motor,just offer power supply in very short time to check if the direction of rotation is comply with the requirement, if not, just exchanging the two leads of power cables.

. MOTOR OPERATION

1. Motor’s connection must strictly comply with the diagram and the data on the nameplate.

2. Motor should be safely earthing,there are earthing devices in the terminal box and on body.

3. After started,if the motor can not reach the normal running or has abnormal noise;or during running,the motor has abnormal noise and smell,please stop the motor quickly and check it.

4. The motors should be protected by thermistors or absent phase protection devices.The setting values of the protection device should be adjusted according to the currents on thenameplate.

5. When motor running normally,cooling fan rotation direction should be consistent with the mark direction.

. MAINTENANCE &REPAIR

1. The operationg environment should be kept dry, the external surface of the motor should be kept clean and the wind inlets should not be blocked by dust or fibre or other contamination.

2. When the thermistors or absent phase protection device work continuously,please confirm the fault from motor or overload or the setting value of protection devices is too low.Correcting the faults and put the motor into normal running.

3. During operating,the motor bearings should be kept better lubricating.When the bearing running about 5000h,please add or change lubrication grease(Genera Lithium Radicel Lubrication);

During operating,when find the bearing over-heat or the lubrication turn bad,changing the lubrication immediately.

4. Disassembly motor,take the rotor out from the stator very carefully and sure the stator’s winding and insulation will not be damaged.

5. The storehouse should be kept dry,and also avoid being kept with corrosive goods in the same storehouse.

6. After long-term storage,before usage,measuring the winding insulation resistance with 500V megger and its reading should be not lower than 0.5 MΩ,and turn the motor by hand let it rotate to get the grease homogeneously,then the motor can be used.

. CONNECTION

When ex-factory, Y—connection for motors with rated power at 3kW or less & Δ—connection for powerat 3kW or more.