Emerson 2330MKII manual Tachometer Feedback Voltage Selection

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BOOK 0958-B

4.MOTOR CONTACTOR - Controller model numbers with an ‘A’ or ‘B’ suffix, e.g., 2331A, 2331AP0, have a DC magnetic armature contactor, which disconnects both motor armature leads from the controller. An antiplug circuit ensures that the contactor does not make or break DC.

5.POWER CONVERSION - The DC power bridge consists of four SCR’s, one freewheeling diode. Each device is rated at least 600 PIV. The controller base forms an integral heat sink, with the power devices electrically isolated from the base.

6.SELECTABLE CAPABILITIES - Switches allow the user to select various modes of operation, as follows:

a. LINE STARTING - By placing SW3:5 in the OFF position, the anti-restart feature will be disabled, and the controller may be started and stopped with an external AC line contactor. However, a wire jumper must be connected between TB2-8 and TB2-9. If full speed operation is desired, connect another wire jumper between TB2-2 and TB2-3.

b. TACHOMETER FEEDBACK - To use tachometer feedback with armature feedback backup, connect the tachometer generator signal to TB2-7 and TB2-5, (polarity insensitive) and select the tachometer generator voltage at maximum speed by using SW3:1 as follows:

TABLE 13. TACHOMETER FEEDBACK VOLTAGE SELECTION

TACH VOLTAGE

SW3:1

 

 

8Vdc - 30Vdc

ON

31Vdc - 175 Vdc

OFF

 

 

c. TORQUE REGULATOR - The controller will function as a torque regulator when SW3:3 is OFF. This allows an external potentiometer to set maximum motor torque (0 - 150% of rated).

7.VOLTAGE TRANSIENT PROTECTION - A metal oxide suppressor (varistor) across the AC line is combined with RC snubbers across the power bridge to limit potentially damaging high voltage spikes from the AC power source.

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Contents Book 0958-B Page 3 HP Book 0958-B Table of Contents List of Tables List of IllustrationsBlank Following must be strictly adhered to at all times Section General Information Introduction General DescriptionModel Types Motor Selection Section Installation Installation GuidelinesDo not use solid wire Installing the Controller Jumper J4 Position Motor Armature Current Rating AmperesInstall the controller cover, if used Controller Mounting Configurations Controller Mounting Dimensions Logic connection diagram, Run-Stop-Jog Switch Book 0958-B Book 0958-B Book 0958-B Signal Connection Diagram, Motor Speed Potentiometer Signal Connection Diagram, Tachometer Feedback Signal Connection Diagram, 4-20mA Interface Page Initial Potentiometer Settings Description Initial StartupBook 0958-B Section Operation Power ON/OFF RUNStop Speed Control Torque ControlJOG Current Loop Transducers ReverseLoad Monitor Inoperative MotorBlank Deceleration Section Maintenance and Repair GeneralAdjustment Instructions Acceleration IR CompensationTachometer Feedback Setup Minimum SpeedCurrent Limit Troubleshooting Indication Possible Cause Corrective ActionOne or more SCR‘s or Diode D1b Troubleshooting Indication Possible Cause Corrective ActionTroubleshooting Indication Section Parts List Parts LIST, Series 2330 Mkii Controllers Fincor PartPart Blank Section Ratings and Specifications 120%Performance Characteristics Operating Voltages and SignalsController Weights Operating ConditionsAdjustments SpecificationsShunt Field Data Tachometer Feedback Voltage Selection Section Drawings Functional Schematic, Series 2330MKII Series 2330MKII Control Board, 1/6 3HP Blank Index Maximum Speed Book 0958-B
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