Emerson 2330MKII manual Section Operation Power ON/OFF, Run, Stop

Page 27

BOOK 0958-B

SECTION III

OPERATION

POWER ON/OFF

To energize the drive, turn-on the AC supply voltage to the controller. When this occurs, the motor shunt field energizes with rated field voltage, and potentially hazardous voltage is present at the motor armature terminals. These

voltages can cause electric shock resulting in personal injury or loss of life.

If the AC supply is interrupted, and the controller is not set up for line starting, the motor will not restart when the AC supply is restored until the controller is reset by initiating a Stop command and then a Start command. If the controller is set up for line starting, and the AC supply is interrupted, the motor will restart when the AC supply is restored, provided the external AC line contactor is pulled in.

RUN

If a RUN-STOP-JOG switch is used, place the switch in RUN position. Otherwise, initiate a Run command. A Run command will accelerate the motor to the setting of the MOTOR SPEED potentiometer or external speed reference signal, as applicable. The rate of acceleration is preset by the ACCEL potentiometer on the controller control board.

STOP

If a RUN-STOP-JOG switch is used, place the switch in STOP position. Otherwise, initiate a Stop command. A Stop command will stop the motor at a rate proportional to the stopping rate of the motor load.

If the controller has dynamic braking, the motor stopping time will be reduced. Dynamic braking provides exponential rate braking of the motor armature, which occurs when the circuit is opened between the controller and the motor armature, and one or more resistors connect across the motor armature.

The dynamic braking resistors provide initial braking torque and stops per minute as shown in Table 5.

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Contents Book 0958-B Page 3 HP Book 0958-B Table of Contents List of Illustrations List of TablesBlank Following must be strictly adhered to at all times Section General Information Introduction General DescriptionModel Types Motor Selection Installation Guidelines Section InstallationDo not use solid wire Jumper J4 Position Motor Armature Current Rating Amperes Installing the ControllerInstall 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 Startup Initial Potentiometer Settings DescriptionBook 0958-B Section Operation Power ON/OFF RUNStop Speed Control Torque ControlJOG Inoperative Motor ReverseLoad Monitor Current Loop TransducersBlank IR Compensation Section Maintenance and Repair GeneralAdjustment Instructions Acceleration DecelerationTachometer Feedback Setup Minimum SpeedCurrent Limit Corrective Action Troubleshooting Indication Possible CauseOne or more SCR‘s or Diode D1b Indication Possible Cause Corrective Action TroubleshootingTroubleshooting Indication Section Parts List Parts LIST, Series 2330 Mkii Controllers Fincor PartPart Blank 120% Section Ratings and SpecificationsOperating Conditions Operating Voltages and SignalsController Weights Performance CharacteristicsAdjustments 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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