Section Operation, Overview, Pre-Start Checklist | Baldor MN850

Section 3

Operation

Overview	The start–up procedure will help get your system up and running quickly and will allow
	motor and control operation to be verified. This procedure assumes that the Control and
	Motor are correctly installed (see Section 2 for procedures) and that you have a basic
	understanding of the keypad programming & operation procedures.

1. Read the Safety Notice and Precautions in section 1 of this manual.

2. Mount the control.

3. Be sure the cover is on and the keypad is plugged in but all power is OFF.

4. Connect Three Phase AC power (L1, L2, L3).

5. Connect 115VAC 1 phase power (X1, X2).

Note: Factory assembled combination and non–combination controllers and controllers in ventilated NEMA 12 enclosures have an internal transformer that provides 115VAC power to X1 and X2 terminals (pre–wired).

	6.	Connect the motor.
Pre–Start Checklist	Check of electrical items.
	CAUTION: After completing the installation but before you apply power, be
		sure to check the following items.
	1.	Verify the Three Phase AC line voltage at source matches control rating.
	2.	Verify the X1, X2 Control Voltage at source is correct. An external fuse is
		required and must be sized as described in Table 2-3.
	3.	Verify the Control Voltage Selector Switch is correctly set.
	4.	Inspect all connections for accuracy, workmanship and tightness as well as
		compliance to codes.
	5.	Verify control and motor are grounded to each other and the control is
		connected to earth ground.
	6.	Check all signal wiring for accuracy.
	7.	Be certain all brake coils, contactors and relay coils have noise suppression.
		This should be an R-C filter for AC coils and reverse polarity diodes for DC
		coils. MOV type transient suppression is not adequate.
	Check of Motors and Couplings
	1.	Verify freedom of motion of motor shaft.
	2.	Verify that the motor coupling is tight without backlash.
	3.	Verify the holding brakes if any, are properly adjusted to fully release and set to
		the desired torque value.

MN850

Operation 3-1

Image 18

Baldor MN850, Baldor manual Section Operation, Overview, Pre-Start Checklist, Sure to check the following items

Contents

Digital Soft-Start Table of Contents Appendix C Appendix aAppendix B Appendix D Limited Warranty Section General InformationIntroduction Safety Notice Precautions Physical Location Section InstallationReceiving, Inspection and Storage Air Flow Clearance Requirements Cover 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 Baldor Control SupplyMotor Overload and Thermal Protection Digital Soft-Start In-Delta Soft-Start Connections Baldor Digital NEC Wire Size and Protection Devices 45x20 Three Wire Control Two Wire Control115 / 230VAC Top of Ramp Bypass Connection 115/230VAC Motor Reversing Connection To AC Input Installation Shock Mounting Overview Pre-Start ChecklistSection Operation Sure to check the following items Keypad Operation Start-Up ProcedureKeypad Mode Switch System Program Menu Data Status Entry Action Description Display Comments Data Entry Mode System Status Mode Description Display CommentsMenu Mode Operating Modes Menu Structure Diagram Menu Structure Menu Navigation Examples Menu Navigation Save Param Motor Starting Key Terms Motor Starting Definitions Term Applications Auto Features Optimising Current Remote Start and Running the Motor Motor Stopping Definitions Term Stopping the Motor Basic Menu Section Parameter IndexMenu Descriptions Applications Menu Parameter Index MN850 Advanced Menu Auto Features Menu Password Menu Permanent Store MenuInputs Menu Outputs Menu Parameters MenuTrips Menu Parameter Description Parameter Descriptions Title Parameter Description RatedCurrent x P52 User Flags Definition Preset Value Example K3 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 Power Off Checks Section TroubleshootingFault Trip Messages Preliminary Checks Troubleshooting Guide Indication Corrective Action 230/460VAC 3 Phase Relay and Contactor Coils Analog SignalsElectrical Noise Considerations Special Motor Considerations Section Specifications and Product Data Identification Input Ratings Storage ConditionsOperating Conditions 230V 460V 575V Mounting Dimensions Size 10.43 265 Mounting Dimensions 151 200 100 105 12.68 24.45 10.87 Specifications and Product Data MN850 CE Declaration of Conformity Wiring of Shielded Screened CablesAppendix a CE Guidelines EMC Conformity and CE Marking Control EMC Installation Instructions Cable Screens Grounding Appendix MN850 Title Parameter Adjustable Range Factory User Setting Appendix B Parameter Values Applications MN850 MN850 Applications B-3 Section General Information Appendix C Replacement Parts Voltage Independent Parts Description 575VAC Parts Description Appendix D Voltage Surge Protection Grounding Grounded or Symbol High Resistance Ground Control Enclosure Voltage Surge Protection MN850 Corner or Center-Tap Symbol Grounded Control Enclosure Table D-1 Baldor MOV Specifications Voltage Surge Protection MN850 Appendix E Remote Keypad Mounting Template 500340 810 500 250 Baldor Electric Company  Baldor Electric Company MN850 03 C&J1500