Boston gear BETAplus Matrix Manuale del proprietario

Boston Gear®

Ratiotrol®

DC Motor Speed Control

Doc. No. 57766

Beta Plus Series

Single Phase

1/6-3 HP

Installation and Operation

DIST. AUTORIZADO

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QRO (442) 1 95 72 60

MTY (81) 83 54 10 18

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Inside Front Cover

BLANK

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SECTION TITLE PAGE

WARNINGS........................................................................................................... 3

I GENERAL INFORMATION............................................................................ 5

Introduction................................................................................................................. 5

General Description .................................................................................................... 5

Model Matrix .............................................................................................................. 5

Motor Selection .......................................................................................................... 5

II INSTALLATION .................................................................................................. 6

Installation Guidelines ................................................................................................ 6

Installing The Controller............................................................................................. 7

Initial Startup ............................................................................................................ 16

III OPERATION........................................................................................................ 17

Power On/Off............................................................................................................ 17

Run............................................................................................................................ 17

Stop ........................................................................................................................... 17

Speed Control ........................................................................................................... 18

Jog.............................................................................................................................18

Reverse ..................................................................................................................... 18

Inoperative Motor ..................................................................................................... 18

IV MAINTENANCE AND REPAIR.................................................................. 19

General...................................................................................................................... 19

Adjustment Instructions............................................................................................ 19

Acceleration.............................................................................................................. 19

Deceleration.............................................................................................................. 19

IR Compensation ...................................................................................................... 19

Maximum Speed Armature Feedback ...................................................................... 20

Maximum Speed Tachometer Feedback .................................................................. 20

Minimum Speed........................................................................................................ 20

Offset ........................................................................................................................ 21

Current Limit ............................................................................................................ 21

Troubleshooting........................................................................................................ 22

V PARTS LIST......................................................................................................... 25

VI RATINGS AND SPECIFICATIONS............................................................ 26

Ratings ...................................................................................................................... 26

Operating Conditions................................................................................................ 27

Performance Characteristics ..................................................................................... 27

Adjustments .............................................................................................................. 28

Specifications............................................................................................................ 28

VII DRAWINGS......................................................................................................... 31

Table of Contents

BETAplus

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LIST OF TABLES

TABLE TITLE PAGE

1 BETAplus Model Matrix............................................................................................ 5

2 Jumper J4 Positions .................................................................................................... 8

3 Initial Potentiometer Settings ................................................................................... 16

4 Dynamic Braking Characteristics ............................................................................. 17

5 Troubleshooting................................................................................................... 22-24

6 Parts List, BETAplus Controllers ............................................................................. 25

7 Typical Application Data.......................................................................................... 26

8 Operating Voltages And Signals .............................................................................. 26

9 Controller Weights.................................................................................................... 27

10 Speed Regulation Characteristics ............................................................................. 27

11 Dip Switch S3 Settings ............................................................................................. 29

12 Shunt Field Data ....................................................................................................... 29

LIST OF ILLUSTRATIONS

FIGURE TITLE PAGE

1 Controller Mounting Configurations .......................................................................... 9

2 Controller Mounting Dimensions ............................................................................... 9

3 Logic Connection Diagram, Run-Stop-Jog Switch, 1/6 - 2 HP................................ 10

4 Logic Connection Diagram, Forward-Reverse Switch

And Run-Stop-Jog Switch, 1/6 - 2 HP................................................................. 10

5 Logic Connection Diagram, Run-Stop Pushbuttons

And Run-Jog Switch, 1/6 - 3 HP ......................................................................... 11

6 Logic Connection Diagram, Optional Armature

Contactor Reversing Using Switches, 1/6 - 3 HP ................................................ 11

7 Logic Connection Diagram, Optional Armature Contactor Reversing

Using Pushbuttons And Run-Jog Switch, 1/6 - 3 HP .......................................... 12

8 Logic Connection Diagram, Line Starting With

Motor Speed Potentiometer, 1/6 - 3 HP............................................................... 12

9 Signal Connection Diagram, Motor Speed Potentiometer ....................................... 13

10 Signal Connection Diagram, Tachometer Feedback ................................................ 13

11 Signal Connection Diagram, Current (Torque) Reference Potentiometer................ 13

12 Signal Connection Diagram, Line Starting Without

A Motor Speed Potentiometer ............................................................................. 14

13 Signal Connection Diagram, 4 - 20 mA Interface .................................................... 14

14 Signal Connection Diagram, 2-Wire Transducer ..................................................... 14

15 Signal Connection Diagram, 4 - 20 mA Transducer With Manual/Auto Switch..... 15

16 Signal Connection Diagram, 0 - 10 VDC External Speed Reference Signal ........... 15

17 Functional Schematic ............................................................................................... 31

18 Schematic, 1/6 - 3 HP ............................................................................................... 32

19 BETAplus Control Board, 1/6 - 3 HP....................................................................... 33

Table of Contents (continued)

BETAplus

DIST. AUTORIZADO

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WARNINGS

The Following Safety Precautions Must Be Strictly Adhered To At All Times.

1. YOU AS THE OWNER OR OPERATOR OF BOSTON GEAR EQUIPMENT HAVE THE

RESPONSIBILITY TO HAVE THE USERS OF THIS EQUIPMENT TRAINED IN ITS OPERATIONS

AND WARNED OF ANY POTENTIAL HAZARDS OF SERIOUS INJURY.

2. THE DRIVE EQUIPMENT SHOULD BE INSTALLED, OPERATED, ADJUSTED, AND SERVICED

ONLY BY QUALIFIED PERSONNEL FAMILIAR WITH THE CONSTRUCTION AND OPERATION OF

THE EQUIPMENT AND THE HAZARDS INVOLVED INCLUDING THOSE DESCRIBED BELOW.

FAILURE TO OBSERVE THIS PRECAUTION CAN RESULT IN PERSONAL INJURY, LOSS OF LIFE,

AND PROPERTY DAMAGE.

3. THE NATIONAL ELECTRICAL CODE REQUIRES THAT AN AC LINE FUSED DISCONNECT OR

CIRCUIT BREAKER BE PROVIDED IN THE AC INPUT POWER LINES TO THE CONTROLLER.

THIS DISCONNECT MUST BE LOCATED WITHIN SIGHT OF THE CONTROLLER. DO NOT

OPERATE THE CONTROLLER UNTIL THIS CODE REQUIREMENT HAS BEEN MET.

4. THE DRIVE EQUIPMENT IS AT AC LINE VOLTAGE WHENEVER AC POWER IS CONNECTED TO

THE DRIVE EQUIPMENT. CONTACT WITH AN ELECTRICAL CONDUCTOR INSIDE THE DRIVE

EQUIPMENT OR AC LINE DISCONNECT CAN CAUSE ELECTRIC SHOCK RESULTING IN

PERSONAL INJURY OR LOSS OF LIFE.

5. BE SURE ALL AC POWER IS DISCONNECTED FROM THE DRIVE EQUIPMENT BEFORE

TOUCHING ANY COMPONENT, WIRING, TERMINAL, OR ELECTRICAL CONNECTION IN THE

DRIVE EQUIPMENT.

6. ALWAYS WEAR SAFETY GLASSES WHEN WORKING ON THE DRIVE EQUIPMENT.

7. DO NOT REMOVE OR INSERT CIRCUIT BOARDS, WIRES, OR CABLES WHILE AC POWER IS

APPLIED TO THE DRIVE EQUIPMENT. FAILURE TO OBSERVE THIS PRECAUTION CAN CAUSE

DRIVE DAMAGE AND PERSONAL INJURY.

8. ALL DRIVE EQUIPMENT ENCLOSURES, MOTOR FRAMES, AND REMOTE OPERATOR STATIONS

MUST BE CONNECTED TO AN UNBROKEN COMMON GROUND CONDUCTOR. AN UNBROKEN

GROUNDING CONDUCTOR MUST BE RUN FROM THE COMMON GROUND CONDUCTOR TO A

GROUNDING ELECTRODE BURIED IN THE EARTH OR ATTACHED TO A PLANT GROUND.

REFER TO THE NATIONAL ELECTRICAL CODE AND LOCAL CODES FOR GROUNDING

REQUIREMENTS.

BETAplus

DIST. AUTORIZADO

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QRO (442) 1 95 72 60

MTY (81) 83 54 10 18

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DIST. AUTORIZADO

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QRO (442) 1 95 72 60

MTY (81) 83 54 10 18

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INTRODUCTION

This manual contains installation, operation, and maintenance and repair instructions for Boston BETAplus Single-

Phase Adjustable-Speed DC Motor Controllers. A parts list, ratings, specifications, and drawings are included.

GENERAL DESCRIPTION

BETAplus Controllers statically convert AC line power to regulated DC for nonregenerative, adjustable-speed

armature control of shunt-wound and permanent-magnet motors.

BETAplus Controllers comply with applicable standards established by the National Electrical Code and NEMA for

motor and industrial control equipment. The controllers are Underwriters Laboratories Listed (File No. E60207) and

CSA approved (File No. LR19781).

Table 1. BETAplus MODEL MATRIX

* Includes Armature Contactor.

† Units are reconnectable

MOTOR SELECTION

BETAplus Controllers control the operation of general purpose DC motors designed for use with solid-state rectified

power supplies. The motors may be shunt-wound, stabilized shunt-wound, or permanent magnet. For maximum

efficiency, any motor should be rated for operation from a NEMA Code K power supply.

Section I – General Information

BETAplus

Line Voltage †Construction Function Operator’s

HP Range Controls

Open Enclosed Run/ Run/ Arm. Arm. Cont. Local Remote

Item Cat. Chassis Stop Stop Switch Rev. (Integral)

Code No. 115 VAC 230 VAC D.B.* Rev. W/D.B.*

64874 RBS2 X X X

64875 RBS2B X X X

64876 RBS2S X X X

64877 RBS2R X X X

64878 RBS2M 1/6 - 1 1/2 - 2 X X X X

64879 RBS2MB X X X X

64965 RBS2MS X X X

64880 RBS2MR X X X

64881 RBS3 1/6 -1 1/2 - 3 XX X

64882 RBS3M X X X X

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Before starting the installation, read this section thoroughly. In addition, a thorough review of the Ratings And

Specifications (Section VI) is recommended. The following installation guidelines should be kept in mind when

installing the controller.

INSTALLATION GUIDELINES

1. CONTROLLER MOUNTING – Controllers may be mounted either vertically or horizontally. Never mount the

controller upside down, immediately beside or above heat generating equipment, or directly below water or steam

pipes.

The controller must be mounted in a location free of vibration.

Multiple controllers may be mounted side by side, as close to each other as the mounting feet will allow.

The minimum clearance at the top and bottom of the controller may be as narrow as the conduit fittings allow.

2. ATMOSPHERE – The atmosphere surrounding the controller must be free of combustible vapors, chemical

fumes, oil vapor, and electrically conductive or corrosive materials.

The air surrounding an enclosed controller must not exceed 40 degrees C (104 degrees F), and the air surrounding

an open-chassis controller must not exceed 55 degrees C (131 degrees F). Minimum air temperature is 0 degree C

(32 degrees F) for enclosed and open-chassis controllers.

3. CONTROLLER CONSTRUCTION – Controller bases are made of die-cast aluminum with a powdered epoxy

finish.

Controller enclosures are totally enclosed, nonventilated, and comply with NEMA type 3, 4 and 12 standards.

There is an oil resistant synthetic rubber gasket between the cover and base. Those models with integral operator

controls include flexible boots to seal the switches, and a seal for the MOTOR SPEED potentiometer.

BETAplus enclosure covers are die-cast aluminum alloy.

4. LINE SUPPLY – The controller should not be connected to a line supply capable of supplying more than 100,000

amperes short-circuit current. Short-circuit current can be limited by using an input supply transformer of 50 KVA

or less, or by using correctly sized current limiting fuses in the supply line ahead of the controller. Do not use a

transformer with less than the minimum transformer KVA listed in Table 7, page 26.

If rated line voltage is not available, a line transformer will be required. If the line supply comes directly from a

transformer, place a circuit breaker or disconnect between the transformer secondary and the controller. If power

is switched in the transformer primary, transients may be generated which can damage the controller. See Table 7

(page 26) for minimum transformer KVA.

Do not use power factor correction capacitors on the supply line to the controller.

A 12-joule metal oxide varistor (MOV) is connected across the controller terminals. If higher energy transients are

present on the line supply, additional transient suppression will be required to limit transients to 150% of peak line

voltage.

When a 115 VAC line supply is used, connect the white (common) wire to Terminal L2 and connect the remaining

(hot) wire to Terminal L1.

Section II – Installation

BETAplus

DIST. AUTORIZADO

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QRO (442) 1 95 72 60

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5. ISOLATION TRANSFORMER – While not required, an isolation transformer can provide the following

advantages:

a. Reduce the risk of personal injury if high voltage drive circuits are accidentally touched.

b. Provide a barrier to externally generated AC supply transients. This can prevent controller damage from

abnormal line occurrences.

c. Reduce the potential for damaging current if the motor armature, motor field, or motor wiring become

grounded.

6. GROUNDING – Connect the green or bare (ground) wire of the line supply to the ground screw located near the

top conduit entry hole in the controller base. Then ground the controller base by connecting the ground screw to

the earth ground.

The motor frame and operator control stations must also be grounded.

Personal injury may occur if the controller, motor, and operator stations are not properly grounded.

7. WIRING PRACTICES – The power wiring must be sized to comply with the National Electrical Code, CSA, or

local codes. Refer to the controller data label for line and motor current ratings.

Do not use solid wire

Signal wiring refers to wiring for potentiometers, tachometer generators, and transducers. Control wiring refers to

wiring for operator controls. If nonshielded wire is used for signal and control wiring, it may be run in a common

conduit, but not in the same conduit as the power wiring. In an enclosure, nonshielded signal and control wiring

must be kept separated from power wiring and only cross at 90 degree angles.

If shielded wire (such as Alpha 2422 - two conductor, 2423 - three conductor, 2424 - four conductor) is used for

the signal and control wiring, it may be run in the same conduit with the power wiring. Connect the shields to

chassis ground (ground screw on the controller base) and tape the opposite ends of the shields.

Two 3/4-14 NPT threaded holes are provided for conduit entry, one each in the top and bottom of the controller.

INSTALLING THE CONTROLLER

1. Remove the controller front cover (if used) by removing the four cover screws.

2. Check components in the controller for shipping damage. Report shipping damage to the carrier.

3. Check the controller and motor data labels to be sure the units are electrically compatible.

4. Be sure the controller has been calibrated correctly for the motor being used. Calibration is performed by

changing the position of a Jumper (J4) on the controller control board to comply with Table 2, page 8. To

change the position of Jumper J4, pull the jumper from the control board and then push it onto the appropriate

two pins on the board. For the location of J4, see Figure 19 (page 33).

BETAplus

DIST. AUTORIZADO

MEX (55) 53 63 23 31

QRO (442) 1 95 72 60

MTY (81) 83 54 10 18

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TABLE 2. JUMPER J4 POSITIONS

*Select the position closest to the motor nameplate armature current rating.

5. Check the positions of Jumpers J1, J2, and J3 on the control board. For the locations of J1, J2, and J3, see

Figure 19 (page 33). For a 230 VAC line supply and a 180V armature motor, Jumper J1 must be in the 230V

position, and Jumpers J2 and J3 must both be in the 180V position. For a 115 VAC line supply, J1 must be in

the 115V position, and J2 and J3 must be in the 90V positions.

6. The controller may be surfaced mounted or panel mounted as shown in Figure 1, page 9. Mount the

controller. Mounting dimensions are shown in Figure 2, page 9.

7. Conduit entry is made by punching out the knockout at the top or bottom of the controller base. To prevent

component damage from knockout fragments, apply masking tape to the inside of the knockout before

punching.

8. Connect the AC power wiring to Terminals L1 and L2, ground to ground lug, motor armature leads to A1 (+)

and A2 (-), and field leads to F + and F -. Be sure to observe Installation Guidelines 4 and 7 on pages 6 and 7.

If half-wave shunt field voltage is desired, connect the motor shunt field leads to Terminals F+ and F/2.

(Table 12, page 29).

NOTE: Low inductance motors require a full-wave field to prevent instability.

9. If the controller contains any options that require external wiring, follow the wiring instructions in the

instruction sheet supplied with the option.

10. If remote operator control wiring and/or signal wiring is required, connect the controller as shown in the

appropriate connection diagram (Figures 3 through 16). Figures 3 through 8 show operator control

connections, and Figures 9 through 16 show signal connections.

11. Set the DIP Switch (S3) as shown in the appropriate connection diagram. See Figure 19 (page 33) for the

location of DIP Switch S3. Also refer to Table 11, “DIP Switch Settings,” page 29.

12. Replace the controller cover, if used.

BETAplus

JUMPER MOTOR ARMATURE CURRENT RATING (AMPERES)*

POSITION 2 HP Maximum 3 HP Maximum

100% 10 15

80% 8 12

60% 6 9

40% 4 6

20% 2 3

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