Baldor MN735 manual Resistance thresholds are Rising temperature trip resistance

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Figure 3-6 Power Connections Continued

	10	DIN4/DOUT2
	9	DIN3		See Applications/Modes
	8	DIN2		See Applications/Modes
	7	DIN1
	6	+24V
	5	AOUT1
	4	AOUT1
	4	+10V Ref	Feedback
	3	+10V Ref	Feedback
	3	AIN2	Setpoint	10k Speed	Volts or
	2	AIN2	Setpoint	10k Speed	Volts or
	2	AIN1		Setpoint	0–20mA Input
	1	AIN1		Setpoint	0–20mA Input
	1	0V
		0V

Connect 0V to PE (protective earth ground) for single control installations only. If multiple controls are used, connect 0V terminals together and ground to PE at one point only.

Size 1 and 3 Terminal Strips

		Size 1
		TH1A
		TH1B
	AC	L1
	Line	L1	AC Line
	Line	L2/N	AC Line
		L2/N
		M1/U
	Motor	M2/V
	Motor	M3/W	Dynamic
			Dynamic
			Brake
		1φ 230VAC
			Motor

Size 3

TH1A

TH1B

L1

L2

L3

DC+

DBR DC– M1/U M2/V M3/W

3φ 460VAC

Thermistor Connections (connections are shown in Figure 3-5).

This input is provided for over–temperature detection for motors that have an internal thermistor. There is no polarity to the thermistor connections. This provides “Basic” insulation only to the SELV control circuits and assumes the motor has “Basic” insulation to the windings/mains circuits. The thermistor type supported is PTC ‘Type A’ as defined in IEC 34–11 Part

2. The resistance thresholds are:

Rising temperature trip resistance:	1650 to 4000 ohms
Falling temperature trip reset resistance	750 to 1650 ohms

If the motor does not have an internal thermistor, you should disable the thermistor trip function by:

MN735

Receiving & Installation 3–9

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Contents Series 35D Inverter Control MN735Table of Contents Appendix a Appendix BPower and Motor Connections Section Quick StartRemote Mode Size 1 and 3 Terminal StripsPower Connection Descriptions Thermistor Connection to motor thermistorAnalog/Digital Signal Descriptions Terminal Signal Name Description RangeLimited Warranty Section General InformationOn next Product Notice Intended useCould result in damage to property Precautions To prevent equipment damage, be certain that the input power Location and Mounting Section Receiving & InstallationReceiving & Inspection Watts Loss Ratings Catalog No Output Current Inverter SizesUngrounded Distribution System Power ConditioningInput Power Conditioning Impedance + Unshielded and Shielded Couplings Clamp TerminalWire Size AWG MM2Power Connection Descriptions Power and Ground Connections Size 2 Shown Resistance thresholds are Rising temperature trip resistance One control to PE Receiving & Installation MN735 External Brake Resistor Keypad Mode Keypad Connection DiagramStandard Run 3 Wire Mode Standard Run Connection DiagramSpeed 2 Wire Mode Related Parameters10 Epot Connection Diagram 11 Epot Connection Diagram PID 2 Wire Mode 12 PID Connection DiagramReceiving & Installation MN735 Section Start-Up and Operation Keypad DescriptionDrive Status Indications shown on keypad Diagnostics MenuDisplay Menu Level Remote to Local Reset to Factory Settings 2 button ResetSelect Local or Remote Password Protection Quick Application SelectionDisplay Parameter Description Range Factory Setting Parameter DefinitionsDisplay Parameter Description Range PI P Gain Analog Output Relay Invert =FALSE =TRUE Integral P502 Method for Setting-up the PI GainsProportional Gain P501 Power Dependent Parameters Inverter Size Factory Setting CurrentRoutine Maintenance Saving Your Application DataMaterial Recycle Disposal PackagingTrips Section TroubleshootingReset a Trip General Failures DC Link RippleSection Specifications & Product Data General SpecificationsAnalog Inputs Control SpecificationsKeypad Display Analog Outputs Digital InputsRelay Output Ratings CatalogDimensions Size 1 and 2 230VAC 1 Phase Size 3 230VAC 3 Phase460VAC 3 Phase Controls Size 2 and 3 460VAC Appendix a Dynamic BrakeTable A-1 External Brake Resistor Selection Wiring of Shielded Screened Cables Appendix B CE GuidelinesCE Declaration of Conformity EMC Conformity and CE MarkingEMC Wiring Technique CabinetEMC Installation Instructions Cable Screens GroundingInput Signal Cable Grounding Tion Date 1/5/02 EC Declarations of ConformityStandard EMC Directive CE Guidelines MN735 Box Ft. Smith, AR 479 Fax 479  Baldor Electric Company MN735 02 C&J