Emerson 2330MKII manual Speed Control, Torque Control, Jog

Page 28

BOOK 0958-B

TABLE 5. DYNAMIC BRAKING CHARACTERISTICSa

 

 

RATED

 

 

 

 

RATED

 

 

 

 

COMPONENT

MODEL

 

 

 

HORSEPOWER

 

 

 

VOLTAGE

 

 

 

 

 

 

 

 

 

 

1/6

1/4

1/3

1/2

3/4

 

1

1-1/2

2

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2331

115V

180

129

103

66

44

 

34

NA

NA

NA

BRAKING TORQUE (%)

2335

230V

NA

NA

400

278

190

 

130

88

62

NA

2332

115V

300

215

170

110

75

 

60

NA

NA

NA

 

 

 

2336

230V

NA

NA

NA

400

320

 

220

145

105

85

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2331

115V

15

12

11

8

6

 

2

NA

NA

NA

STOPS PER MINUTE

2335

230V

NA

NA

12

8

6

 

1

1

1

NA

 

 

 

 

 

 

 

 

 

 

 

 

2332

115V

9

6

5

5

4

 

4

NA

NA

NA

 

 

 

2336

230V

NA

NA

NA

5

4

 

4

3

3

2

 

 

 

 

 

 

 

 

 

 

 

 

 

a.HIGH INERTIA LOADS MAY EXTEND BRAKING TIME AND CAUSE THE WATTAGE RATING OF THE DYNAMIC BRAKING RESISTORS TO BE EXCEEDED.

An antiplug feature is included with optional Armature Contactor Reversing With Dynamic Braking (Option 1004). This feature prevents restarting the motor before the motor has braked to a stop.

SPEED CONTROL

Motor speed is directly proportional to the setting of the MOTOR SPEED potentiometer or the magnitude of an external speed reference signal, as applicable. This potentiometer or the speed reference signal may be adjusted while the motor is running or may be preset before the motor is started.

The rates of acceleration and deceleration are preset by the ACCEL and DECEL potentiometers, respectively, located on the controller control board.

Maximum speed and minimum speed are preset by the MAX SPD and MIN SPD potentiometers, respectively, located on the control board.

TORQUE CONTROL

Motor torque is directly proportional to the setting of the CURRENT LIMIT potentiometer or the magnitude of an external torque reference signal, as selected by dip switch SW3, position 3. This potentiometer or the current reference signal may be adjusted while the motor is running or may be preset before the motor is started. Note that if the process demands less torque then the torque reference is commanding, motor speed will continue to increase up to maximum speed.

JOG

If a RUN-STOP-JOG switch is used, place the switch in JOG position. Otherwise initiate a Jog command. Jog is momentary, causing motor rotation only while the switch is held in JOG position or while a Jog command is active. Release the switch to stop the motor.

Normally, jog speed is directly proportional to the setting of the MOTOR SPEED potentiometer. If a separate JOG SPEED potentiometer is used, jog speed will be directly proportional to the setting of the JOG SPEED potentiometer.

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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 General Description Section General Information IntroductionModel 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 RUN Section Operation Power ON/OFFStop Torque Control Speed ControlJOG Reverse Load MonitorCurrent Loop Transducers Inoperative MotorBlank Section Maintenance and Repair General Adjustment Instructions AccelerationDeceleration IR CompensationMinimum Speed Tachometer Feedback SetupCurrent Limit Troubleshooting Indication Possible Cause Corrective ActionOne or more SCR‘s or Diode D1b Troubleshooting Indication Possible Cause Corrective ActionTroubleshooting Indication Parts LIST, Series 2330 Mkii Controllers Fincor Part Section Parts ListPart Blank Section Ratings and Specifications 120%Operating Voltages and Signals Controller WeightsPerformance Characteristics Operating ConditionsSpecifications AdjustmentsShunt 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