Baldor Baldor, MN850 manual Motor Stopping Definitions Term, Stopping the Motor

Page 27

Motor Stopping Definitions

Term

Definition

Stop Pedestal Voltage

Stop Pedestal Voltage is the percentage of line voltage applied to the motor after a stop

 

command. Programmed as parameter 16 or as Stop Pedestal in Basic Menu.

Stop Time

Time in seconds after a stop command to ramp down the motor voltage (Stop Time 1 or 2)

 

Stop Time 1 with low voltage ramp active. Stop Time 2 with no low voltage ramp.

 

Programmed as parameter 17 or as Stop Time in Basic Menu.

 

 

Stop Smoothing

Adjustable voltage ramp for smooth deceleration. Motor current is monitored and stop

 

smoothing will continue until the Start Pedestal value is reached.

 

Programmed as parameter

 

 

Run Voltage

Full voltage or Running Voltage

Start Pedestal Voltage

Start Pedestal Voltage – end of stop smoothing and beginning of low voltage ramp to zero

 

volts (if low voltage ramp is active). Programmed as parameter 11 or as Start Pedestal in

 

Basic Menu.

 

 

Figure 3-4 Motor Stopping Key Terms

 

Motor

 

 

 

Voltage

Stop

Smoothing Effect

 

 

 

Full Voltage

 

Run

 

 

 

 

 

Voltage

 

Stop Pedestal

Ideal

 

 

 

 

 

Actual

 

 

Stop Smoothing

Stop Pedestal

 

End of Stop Smoothing

 

 

 

Voltage

 

 

Low Voltage Ramp

Start Pedestal

 

 

Voltage

 

 

 

 

 

Stop

 

 

 

Time 2

Time

 

 

 

 

 

Stop Time 1

 

Stopping the Motor

When Remote Starting is selected, the keypad Start/Stop pushbutton is not active.

Action

Description

 

Display

 

 

Comments

 

 

 

 

 

 

 

Press Start/Stop key

Displays motor starting current

 

 

 

 

Begins the Stop operation

Stopping

 

 

(Keypad Stop)

and full voltage and current.

 

Current

8A

 

 

 

 

 

 

 

Remove the 115VAC

 

 

 

 

 

Begins the Stop operation

 

 

Stopping

 

 

from S0 and S1.

 

 

Current

8A

 

 

(Remote Stop)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3-10 Operation

MN850

Image 27
Contents Digital Soft-Start Table of Contents Appendix D Appendix aAppendix B Appendix CLimited Warranty Section General InformationIntroduction Precautions Safety NoticeAir Flow Clearance Requirements Section InstallationReceiving, Inspection and Storage Physical LocationCover Removal Tools Required Mounting Instruction For tapped mounting holesMounting Instructions For clearance mounting holes AC Main Circuit Connection Descriptions UL Required Fuses for Short Circuit RatingCatalog Number Digital Soft-Start Control SupplyMotor Overload and Thermal Protection BaldorBaldor Digital In-Delta Soft-Start Connections45x20 NEC Wire Size and Protection DevicesThree Wire Control Two Wire Control115 / 230VAC 115/230VAC Top of Ramp Bypass ConnectionTo AC Input Motor Reversing ConnectionShock Mounting InstallationSure to check the following items Pre-Start ChecklistSection Operation OverviewAction Description Display Comments Start-Up ProcedureKeypad Mode Switch System Program Menu Data Status Entry Keypad OperationOperating Modes System Status Mode Description Display CommentsMenu Mode Data Entry ModeMenu Structure Menu Structure DiagramMenu Navigation Menu Navigation ExamplesSave Param Motor Starting Definitions Term Motor Starting Key TermsApplications Auto Features Remote Start and Running the Motor Optimising CurrentStopping the Motor Motor Stopping Definitions TermApplications Menu Section Parameter IndexMenu Descriptions Basic MenuParameter Index MN850 Advanced Menu Auto Features Menu Password Menu Permanent Store MenuInputs Menu Outputs Menu Parameters MenuTrips Menu Parameter Description Title Parameter Description Parameter DescriptionsRatedCurrent x Example P52 User Flags Definition Preset ValueK3 BIT Mask Missing. Check fuses etc Second of a start request is forced to 0 stop time Thermal Switch 2 Over temp . Prevents re-start if set , Off Preliminary Checks Section TroubleshootingFault Trip Messages Power Off ChecksIndication Corrective Action Troubleshooting Guide230/460VAC 3 Phase Special Motor Considerations Analog SignalsElectrical Noise Considerations Relay and Contactor CoilsIdentification Section Specifications and Product DataInput Ratings Storage ConditionsOperating Conditions 230V 460V 575V Size Mounting Dimensions10.43 265 Mounting Dimensions 151 200 100 105 12.68 24.45 10.87 Specifications and Product Data MN850 EMC Conformity and CE Marking Wiring of Shielded Screened CablesAppendix a CE Guidelines CE Declaration of ConformityControl Cable Screens Grounding EMC Installation InstructionsAppendix MN850 Appendix B Parameter Values Title Parameter Adjustable Range Factory User SettingApplications MN850 MN850 Applications B-3 Section General Information Voltage Independent Parts Description Appendix C Replacement Parts575VAC Parts Description Grounding Appendix D Voltage Surge ProtectionVoltage Surge Protection MN850 Grounded or Symbol High Resistance Ground Control EnclosureTable D-1 Baldor MOV Specifications Corner or Center-Tap Symbol Grounded Control EnclosureVoltage Surge Protection MN850 Appendix E Remote Keypad Mounting Template 500340 810 500 250  Baldor Electric Company MN850 03 C&J1500 Baldor Electric Company