Baldor MN770 manual Rated Motor Load Slip Adjustment Value, Final Set-up

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Initial Set-up

Continued

j.Set Level 1 VECTOR CONTROL Block, SLIP FREQUENCY as desired. This value can be calculated from the values recorded previously in Table 5-2. Record these calculated values in Table 5-3.

Calculate the Slip RPM of the motor:

Slip RPM ￿ (RPM of Balanced Car) * (RPM of Fully Loaded Car) Calculate the % of Motor Loading:

%Rated Motor Load ￿ ￿Full Load AC Motor Current￿X 100% Rated Motor Amps

Determine the Slip Adjustment Value from Table 5-1.

Table 5-1 Slip Adjustment Value.

% Rated

Motor Load

Slip Adjustment Value

100 - 110%

1.0

90 - 100%

1.1

80

- 90%

1.3

70

- 80%

1.5

Calculate the Slip Frequency parameter value:

Line Frequency x Slip RPM x Slip Adjustment Value

Slip Frequency ￿

RPM of Balanced Car

k. Set Level 2 Operating Zone as desired (usually Quiet Constant Torque). l. Set Level 2 Output Limits block, MIN OUTPUT SPEED parameter.

m. Set Level 2 Output Limits block, MAX OUTPUT SPEED parameter.

n. Set Level 2 MOTOR DATA block parameters: Motor Voltage (input)

Motor Rated Amps (FLA)

Motor Rated Speed (Base Speed) Motor Rated Frequency

Motor Mag Amps (no load current)

 

4. Manual Tuning Method - Because the load cannot be uncoupled from the motor

 

shaft, proceed with the manual tuning procedure. The manual tuning procedure

 

is provided in MN718 for the Series 18H Vector Control.

Final Set-up

After Initial Set-up is complete, operate the elevator using the Vector control and make

 

any final adjustments. Accel, Decel and S-Curve values may need adjustment for

 

smooth operation.

5-12 Set-Up Information

MN770

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Contents MN770 Elevator Application GuideTable of Contents Ii Table of Contents MN770 Introduction Section General InformationDrive Definition ModernizationsLimited Warranty Safety Notice VAC or 460 VAC maximum per control rating Perform a ªMeggerº test. Failure to disconnect motor fromUnderwriter Laboratory requirements Section Technologies FeatureOverview Drive Performance Comparison20H Control DC SCR ControlInverter 15H Control21H Control Vector 17H & 18H Controls22H Control Section Application Considerations Electric Drives Common Control Features Operating ModeAvailable Operating Modes Elevator Motor Horsepower Selection US Measurement SystemMetric Measurement System Motor Sizing OCW = Dynamic Brake Hardware SelectionGeneral Considerations Section Hardware InformationEncoder Retrofit Cable PreparationEncoder Cables Differential Connections Encoder Cable ConnectionEncoder End Control End Single Ended ConnectionsBuffered Encoder Output DC SCR Controls Section Set-Up InformationField Control FeedbackOverload = Fault Following Error = on Torque Proving = on Final InstallationFinal Adjustments Brake Release Signal Armature EnableSpeed Command ContactorInverter Controls Initial Installation and StartupPage TURN-ON Vector Controls Full Load Test Balanced Car TestSeries 18H Control Considerations Final Wiring ConnectionsInitial Set-up ProcedureSlip Adjustment Value Rated Motor Load Slip Adjustment ValueFinal Set-up Power Up/Down Sequence for Vector Controls Date Pre-Installation TestsVector Control Worksheet Set-Up Information MN770 Section Troubleshooting Electrical Noise Display Electrical Noise Considerations R-C Snubber Circuit & twisted-pair10HP, 460VAC Drive 30HP, 500VDC Drive, Shielded 10 Isolated Mounting Method Power Wiring Wiring PracticesAnalog Signal Wires Encoder CircuitsPlant Ground Optical IsolationOptical Couplers Fiber OpticsLoad Weighing / Torque Feed Forward Appendix aDescription of Operation Table A-1Serial Communications Appendix BAppendix B MN770 Elevator Industry Glossary Appendix CPage Page Appendix C MN770  Baldor Electric Company MN770 97 C&J300 Box

MN770 specifications

The Baldor MN770 is an impressive industrial motor designed for a variety of applications, showcasing robust construction and advanced technology. Known for its reliability and efficiency, the MN770 is manufactured by Baldor Electric Company, a prominent name in the electric motor industry.

One of the main features of the MN770 is its high-efficiency design. This motor adheres to stringent efficiency standards, helping to reduce energy consumption and lower operational costs. It typically meets or exceeds NEMA Premium Efficiency ratings, making it an excellent choice for businesses looking to optimize their energy use.

The MN770 motor is built with a durable cast iron frame, ensuring longevity and resistance to harsh operating conditions. Its weatherproof design is ideal for both indoor and outdoor applications, making it suitable for various environments, including manufacturing plants, water treatment facilities, and agricultural operations.

Another significant characteristic of the MN770 is its versatility. The motor is available in a range of horsepower ratings, allowing users to select the model that best fits their specific needs. Additionally, it offers various mounting configurations and voltage options, further enhancing its adaptability for diverse applications.

The motor utilizes advanced insulation systems and cooling technologies to ensure optimal performance and a longer lifespan. The robust design helps to dissipate heat effectively, enabling the motor to operate efficiently even under heavy loads. This characteristic is essential for applications requiring continuous operation without compromising reliability.

Moreover, the Baldor MN770 incorporates advanced design features such as precision-balanced rotors and high-performance bearings. These characteristics contribute to reduced vibration and noise levels, promoting a quieter working environment and improving overall operation efficiency.

In summary, the Baldor MN770 motor stands out due to its high efficiency, robust construction, versatility, and advanced technologies. Its ability to perform reliably in various industrial applications makes it a popular choice among engineers and facility managers. Investing in the MN770 not only enhances operational efficiency but also supports sustainability efforts by reducing energy consumption in industrial environments.
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