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A parameter setting method of ECM motor replacing PSC motor
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A technology of motor parameters and setting methods, which is applied in the direction control of AC motors, electronic commutation motor control, motor generator testing, etc., can solve the problems of low efficiency and low efficiency, and achieve the effect of simple and convenient on-site debugging
Active Publication Date: 2017-01-25
ZHONGSHAN BROAD OCEAN
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Abstract
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Problems solved by technology
Because the air conditioner evaporator coil requires higher airflow than the furnace heat exchanger, the fan motor runs at a lower RPM during furnace operation, which is inefficient if the furnace control board had a dedicated relay to Controls continuous fan mode, during continuous fan "ON" operation, the motor runs at a lower speed for least efficiency
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Embodiment 1
[0057] Embodiment one: if Figure 4 and Figure 6 As shown, a method for setting parameters of an ECM motor that replaces an outdoor PSC motor, the ECM motor has a stator assembly, a rotor assembly, a casing assembly and a motor controller, and the motor controller includes a power circuit, a microprocessor , inverter circuit and voltage measurement circuit, the voltage measurement circuit measures the AC input voltage Vac of the external input power supply, the power supply circuit supplies power to each part of the circuit, the voltage measurement circuit inputs the measured voltage signal into the microprocessor, and the microprocessor controls the drive of the inverter circuit Stator assembly, is characterized in that: it comprises the steps:
[0058] Step 1) Power on the motor and detect the AC input voltage Vac;
[0059] Step 2) When Vac>Vset1 AC, the motor operates in a normal working state, that is, operates the motor according to the stored and recorded steering dat...
Embodiment 2
[0072] Embodiment two: such as Figure 5 and Figure 7 As shown, a method for setting parameters of an ECM motor that replaces an outdoor PSC motor, the ECM motor has a stator assembly, a rotor assembly, a casing assembly and a motor controller, and the motor controller includes a power circuit, a microprocessor , an inverter circuit and a voltage measurement circuit, the voltage measurement circuit measures the DC bus voltage Vdc at the output of the power supply circuit, the power supply circuit supplies power to each part of the circuit, the voltage measurement circuit inputs the measured voltage signal into the microprocessor, and the microprocessor controls the drive of the inverter circuit Stator assembly, is characterized in that: it comprises the steps:
[0073] Step 1) Power on the motor and detect the DC bus voltage Vdc;
[0074] Step 2) When Vdc>Vset3 DC, the motor operates in a normal working state, that is, operates the motor according to the stored and recorded...
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Abstract
The invention relates to an ECM motor parameter setting method for replacing a PSC motor. The motor is powered on and detects the DC bus voltage Vdc or the AC input voltage Vac; if the DC bus voltage Vdc or the AC input voltage Vac is greater than a certain set value, the motor According to the normal working state of the motor; if the DC bus voltage Vdc or the AC input voltage Vac is less than a certain set value, enter the steering speed programming state; there are 4 programming states, programming state 1: set the steering to CW, set the speed to Set to H; programming state 2: set the steering to CW, set the speed to L; programming state 3: set the steering to CCW, set the speed to L; programming state 4: set the steering to CCW, set the speed to Set it to H; if the user turns off the power in a certain programming state, it means that the user thinks the state is suitable, and the steering data and speed data corresponding to the programming state are stored and recorded as the normal operation parameters of the motor; on-site debugging is very simple and convenient, which is beneficial to ECM A wide range of motor applications.
Description
technical field [0001] The invention relates to a parameter setting method of an ECM motor replacing a PSC motor. Background technique [0002] refer to figure 1 , showing a fixed speed PSC motor used in a residential HVAC (heating ventilation and air conditioning system) system. figure 1 Take an indoor unit load as an example, but this patent is also applicable to the application of outdoor units. The motor has four winding gear taps to demodulate two heating fan speeds and two cooling fan speeds. Fan speed is controlled by the furnace control board, which is equipped with cooling / heating relays, low / high cooling relays, and low / high heating relays. Other HVAC systems include two heating stages and a single cooling stage, or some other combination of heating and cooling speeds. [0003] PSC motors are reasonably efficient when operating at high speeds, and can drop to the 20% range when operating at low speeds. Because the air conditioner evaporator coil requires highe...
Claims
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Application Information
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