Baldor MN770 manual Vector Controls

Page 29

Vector Controls

If this is a modernization, do not disconnect the old control from the motor. It is needed to

 

operate the motor for some preliminary measurements before it is disconnected. See

 

Modernization.

Equipment Required

The following equipment is required for this upgrade.

 

1.

Elevator rated AC induction motor with encoder installed.

 

2.

Baldor Series 18H or 22H Vector Control.

 

3.

Elevator system controller (PLC-not supplied by Baldor). This controller will be

 

 

connected to the Vector Control.

 

4.

Clamp-On AC Amp Meter. (Voltage and Current range depend on the motor).

New Installations

For new elevator installations that are pre-configured by the OEM, perform the following:

 

(Skip this procedure if this is a modernization).

 

1.

Install the motor and Vector Control. Refer to the Installation and Operating

 

 

Manual supplied with the control for mounting and wiring instructions.

 

2.

Refer to the Installation and Operating manual. Perform the following parts of

 

 

the Manual Tuning procedure: CALC Presets, CMD Offset Trim and CUR Loop

 

 

Comp. Be sure the motor contactor is closed for the CUR Loop Comp test.

 

3.

Apply power. Adjust the Level 1 Vector Control block, Current Prop Gain and

 

 

Speed Prop Gain parameter values for best ride.

Modernization

For modernization of an existing installation, perform these steps instead of those for

 

ªNew Installationº:

 

Caution: Check the motor nameplate ratings and the input voltage at the

 

 

power source and be sure that they match. If the measured input

 

 

voltage is different than the rated voltage on the nameplate do not

 

 

proceed. The Vector control ratings must match the motor ratings

 

 

and the input line voltage. If the Vector Control nameplate shows

 

 

the input voltage and frequency required for proper operation.

 

 

Other input power may damage the control. Refer to the Vector

 

 

Control manual for installation considerations.

 

1.

Disconnect all elevator power.

 

2.

Modify the existing motor and mount the encoder. Temporarily connect the

 

 

encoder to the Vector control J1 terminals (Do not connect the motor leads to

 

 

the Vector Control). See Figure 5-1. The existing elevator control will be used

 

 

to drive the load for these tests. Encoder connections are describe in Section 4

 

 

of this manual.

Figure 5-1 Initial Vector Control Connection

Existing

Elevator

Control

Wiring

Motor

JOG LOCAL PROG

FWD DISP

REV SHIFT ENTER

STOP RESET

Encoder

Temporary

Connection

5-8 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 Underwriter Laboratory requirements VAC or 460 VAC maximum per control ratingPerform a ªMeggerº test. Failure to disconnect motor from Section Technologies FeatureOverview Drive Performance Comparison20H Control DC SCR Control21H Control Inverter15H Control 22H Control Vector17H & 18H Controls Section Application Considerations Electric Drives Available Operating Modes Common Control FeaturesOperating Mode Metric Measurement System Elevator Motor Horsepower SelectionUS 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 ProcedureFinal Set-up Slip Adjustment ValueRated Motor Load Slip Adjustment Value 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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