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Product Description
The Masterflux 025F0062-01 Motor Controller has been designed to provide efficient control and fault monitoring of a DC powered brushless hermetic compressor.
The controller will provide a constant speed as specified by the speed command inputs unless one of the following limitations are exceeded. Power limitation, this is where the average power the drive is producing exceeds 2500 watts. This is calculated by Power out = motor supply * average motor current. If the load requires more than 2500 watts then the speed will be reduced accordingly. Voltage limitation, this is where the motor supply voltage is not high enough to achieve the commanded speed and/or power.
There are four variants of the 025F0062 controller (025F0062-01, 025F0062-02, 025F0062-03, and 025F0062-04). Each have application specific voltage limits.
An isolated user interface including an RS-232 serial port is supplied. Run/Stop and speed are controlled by a 0 to 5V analog input, or 0 – 90% PWM input. When the speed input is1V or less or the duty cycle is less than 10%, the motor is stopped. When the analog input is 1V, or the PWM input is 10% the motor will run at 1800 RPM. When the analog input is at 5V, or the PWM input is 90% the motor will run at 6500. Tachometer output is an open collector output signal with 5K pull up resistor. The output frequency is 0 to 2.6Khz. When the controller is commanded to run from a stopped condition it will run the motor at 3000 RPM for 30 seconds after which point it will run the motor at the commanded input speed.
The following fault conditions are monitored continuously: under/over voltage, over-current, drive over-temperature, pump over-temperature, low speed and locked rotor. Upon detection of a fault, the controller will shut down the motor. Depending on the cause of the fault the controller may pause to allow time for the fault to clear and then attempt to restart the motor. The fault handling behavior is described further in the fault reporting section. The controller will indicate the fault-state by a TTL output.
Two one-position screw lug connectors are provided for connecting the input power to the controller. Three one-position screw lug connectors will provide connection to the motor outputs for the compressor. A two position locking connector is supplied to connect to the shell temperature switch from the compressor. The isolated control and indicator signals connect to an eight pin locking Molex header. Each connector function is labeled on the printed circuit board. The RS-232 serial port is provided through a nine-pin male dsub connector. The connector pin outs are defined in appendix A of the controller specifications document (see link below).
The motor drive transistor assembly is cooled by a large aluminum finned heat sink. A temperature sensor embedded in the power assembly measures the module temperature. The heat sink provides the mounting points for the assembly with threaded holes at each end. An optional machined heat sink with gasket sealing for thru panel mounting will be available. The heat sink is electrically isolated from the circuitry.
Masterflux 025F0062-01 Digital Controller is typically used with:
• Compressor Model: SIERRA05-0434XX; SIERRA05-0982XX
• Wiring Harness: 14942832
• Interface Device: 030A0043
• Power Input Cable: N/A
• Mounting Kit: LP157; LP158; LP56
Masterflux Controller Specification Sheet available
The controller will provide a constant speed as specified by the speed command inputs unless one of the following limitations are exceeded. Power limitation, this is where the average power the drive is producing exceeds 2500 watts. This is calculated by Power out = motor supply * average motor current. If the load requires more than 2500 watts then the speed will be reduced accordingly. Voltage limitation, this is where the motor supply voltage is not high enough to achieve the commanded speed and/or power.
There are four variants of the 025F0062 controller (025F0062-01, 025F0062-02, 025F0062-03, and 025F0062-04). Each have application specific voltage limits.
An isolated user interface including an RS-232 serial port is supplied. Run/Stop and speed are controlled by a 0 to 5V analog input, or 0 – 90% PWM input. When the speed input is1V or less or the duty cycle is less than 10%, the motor is stopped. When the analog input is 1V, or the PWM input is 10% the motor will run at 1800 RPM. When the analog input is at 5V, or the PWM input is 90% the motor will run at 6500. Tachometer output is an open collector output signal with 5K pull up resistor. The output frequency is 0 to 2.6Khz. When the controller is commanded to run from a stopped condition it will run the motor at 3000 RPM for 30 seconds after which point it will run the motor at the commanded input speed.
The following fault conditions are monitored continuously: under/over voltage, over-current, drive over-temperature, pump over-temperature, low speed and locked rotor. Upon detection of a fault, the controller will shut down the motor. Depending on the cause of the fault the controller may pause to allow time for the fault to clear and then attempt to restart the motor. The fault handling behavior is described further in the fault reporting section. The controller will indicate the fault-state by a TTL output.
Two one-position screw lug connectors are provided for connecting the input power to the controller. Three one-position screw lug connectors will provide connection to the motor outputs for the compressor. A two position locking connector is supplied to connect to the shell temperature switch from the compressor. The isolated control and indicator signals connect to an eight pin locking Molex header. Each connector function is labeled on the printed circuit board. The RS-232 serial port is provided through a nine-pin male dsub connector. The connector pin outs are defined in appendix A of the controller specifications document (see link below).
The motor drive transistor assembly is cooled by a large aluminum finned heat sink. A temperature sensor embedded in the power assembly measures the module temperature. The heat sink provides the mounting points for the assembly with threaded holes at each end. An optional machined heat sink with gasket sealing for thru panel mounting will be available. The heat sink is electrically isolated from the circuitry.
Masterflux 025F0062-01 Digital Controller is typically used with:
• Compressor Model: SIERRA05-0434XX; SIERRA05-0982XX
• Wiring Harness: 14942832
• Interface Device: 030A0043
• Power Input Cable: N/A
• Mounting Kit: LP157; LP158; LP56
Masterflux Controller Specification Sheet available
Additional Information
| Lead Time | 10-12 weeks |
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