KB Electronics KBMM Instruction Manual

KBMM

™

Installation and Operation Manual

Surface Mount Technology

Solid State SCR

DC Motor Speed Controls

for Use with 1/100 – 3 HP, 90 and 180 Volt

Permanent Magnet and Shunt Wound DC Motors*

AC Line Input: 115 and 208/230 Volts, 50/60 Hz

This Manual Covers Models KBMM-125, 225, 225D

Ultra Fast Current Limit Circuit Prevents

Demagnetization in Permanent Magnet Motors

The information contained in this manual is intended to be accurate. However, the manufacturer retains the right

to make changes in design which may not be included herein.

A Plug-In Horsepower Resistor® and AC Line

and Armature Fuses, supplied separately,

must be installed for this product to operate.

*Auxiliary Heat Sink (Part No. 9861) is required

to achieve maximum rating of control. See

Electrical Ratings, Table 1, on page 9.

See Safety Warning on page 6.

A COMPLETE LINE OF MOTOR DRIVES

*See page 6

for CE

Information

(See back cover)

PATENTED

Manufactured in the USA

DECEL

ACCEL

MAX

A+

F+

PWR ON

CONN1

MIN

F-

A-

TABLE OF CONTENTS

Section Page

1 Simplified Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Safety Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4 Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5 Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

6 Wiring Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

7 Setting Selectable Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

8 AC Line and Armature Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

9 Plug-In Horsepower Resistor® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

10 Recommended High Voltage Dielectric Withstand Testing (Hi-Pot Testing) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

11 Trimpot Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

12 Diagnostic LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

13 Switching Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

14 Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Tables

1 Electrical Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2 General Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 Minimum Supply Wire Size Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4 Field Connection (Shunt Wound Motors Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

5 AC Line and Armature Fuse Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6 Plug-In Horsepower Resistor® Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

7 RFI Filter Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

TABLE OF CONTENTS (Continued)

Figures Page

1 Control Layout and General Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2 Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3 Remote Main Speed Potentiometer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4 Voltage Following Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5 Enable Switch or Contact Wired to the Enable Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6 Enable Switch or Contact Wired to the Main Speed Potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7 Inhibit Switch or Contact Wired to the Inhibit Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

8 DC Tach-Generator Connection (7 Volts per 1000 RPM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

9 DC Tach-Generator Connection (50 Volts per 1000 RPM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

10 Other DC Tach-Generator Connection (with Addition of RT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

11 AC Line Input Voltage Selection (Jumper J1 (Model KBMM-225D Only)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

12 Motor Voltage and DC Tach-Generator Selection (Jumper J2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

13 Hi-Pot Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

14 Acceleration Trimpot (ACCEL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

15 Deceleration Trimpot (DECEL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

16 Minimum Speed Trimpot (MIN) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

17 Maximum Speed Trimpot (MAX) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

18 Current Limit Trimpot (CL) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

19 IR Compensation Trimpot (IR) Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

20 Typical Dynamic Brake Circuit Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Items Included in this package – KBMM™ Speed Control, KBMM™ Installation and Operation Manual, Hardware Bag (contains Main Speed Potentiometer with insulator and mounting hardware, (9) – 0.25” female crimp-on terminals, (4) – 0.11” female crimp-on terminals, and an Enable harness), CE Approved Product Information Card, and Warranty Registration Card.

Items required to operate this control – Plug-In Horsepower Resistor®, AC Line Fuse and Armature Fuse. Supplied through your distributor. See Sections 8 and 9, on pages 20 - 22.

Note: A Plug-In Horsepower Resistor® and AC Line and Armature Fuses, supplied separately, must be installed in order for this product to operate. See Section 9, on page 21.

1 SIMPLIFIED INSTALLATION INSTRUCTIONS

1.1 AC Line Connection – Wire the AC line to Terminals “L1” (Line Fuse) and “L2”, as shown in Figure 1, on

page 10 and as described in Section 6.1, on page 13.

Model KBMM-125 is rated for 115 Volt AC line input only. Model KBMM-225 is rated for 230 Volt AC line input only. Model KBMM-225D is rated for 115 Volt AC line input (Jumper J1 in the “115” position) and 230 Volt AC line input (Jumper J1 in the “230” position). See Section 7.1, on page 19.

Notes: 1. The rated AC line voltage (115, 208/230) of the control must match the actual AC line input voltage. 2. If one of the AC line inputs is a neutral (N), wire it to Terminal “L2”.

1.2 Ground Connection – Connect the ground wire (earth) to the control chassis.

1.3 Motor Connection – Connect the motor to Terminals “A+” (Armature Fuse) and “A-”, as shown in Figure 1,

on page 10, and as described in Section 6.3, on page 14.

1.4 Jumper Settings – Jumper J1 (on Model KBMM-225D only) and Jumper J2 (all models) have been factory

set for most applications, as shown in Figure 1, on page 10, and as described in Section 7, on page 19.

IMPORTANT – Read these simplified installation instructions before proceeding. These instructions are to be used as a reference only and are not intended to replace the detailed instructions provided herein. You must read the Safety Warning, on page 6, before proceeding.

Fuse

Plug-In Horsepower

Resistor®

1.5 AC line Fusing – It is required that an AC line fuse (supplied separately) be installed in the AC Line Fuse

Holder, as shown in Figure 1, on page 10. Select the correct AC Line Fuse, as described in Section 8, on pages 20 and 21. Fuse each conductor that is not at ground potential.

1.6 Armature Fusing – It is required that an Armature Fuse (supplied separately) be installed in the Armature

Fuse Holder, as shown in Figure 1, on page 10. Select the correct Armature Fuse as described in Section 8, on pages 20 and 21.

1.7 Plug-In Horsepower Resistor® – Install the correct Plug-In Horsepower Resistor® according to armature

voltage and motor horsepower, as shown in Figure 1, on page 10. Select the correct Plug-In Horsepower Resistor®, as described in Section 9, on pages 21 and 22.

1.8 Trimpot Settings – All trimpots have been factory set for most applications, as shown in Figure 1, on page

10. The trimpots may be readjusted, as described in Section 11, on page 24.

1.9 Diagnostic LEDs – After power has been applied to the control, observe the LEDs to verify proper control

operation, as described in Section 12, on page 28.

1.10 Auxiliary Heat Sink (Part No. 9861) – Extends the horsepower rating of the control to 1.5 HP for controls

with 90 Volt DC output and 3 HP for controls with 180 Volt DC output.

This product should be installed and serviced by a qualified technician, electrician, or electrical main-

tenance person familiar with its operation and the hazards involved. Proper installation, which includes wiring, mounting in proper enclosure, fusing or other over current protection, and grounding can reduce the chance of electrical shocks, fires, or explosion in this product or products used with this product, such as electric motors, switches, coils, solenoids, and/or relays. Eye protection must be worn and insulated adjustment tools must be used when working with control under power. This product is constructed of materials (plastics, metals, carbon, silicon, etc.) which may be a potential hazard. Proper shielding, grounding, and filtering of this product can reduce the emission of radio frequency interference (RFI) which may adversely affect sensitive electronic equipment. It is the responsibility of the equipment manufacturer and individual installer to supply this Safety Warning to the ultimate end user of this product. (SW effective 11/1992). Be sure to follow all instructions carefully. Fire and/or electrocution can result due to improper use of this product.

Definition of Safety Warning Symbols:

Electrical Hazard Warning Symbol – Failure to observe this warning could result in electrical shock

or electrocution.

Operational Hazard Warning Symbol – Failure to observe this warning could result in serious injury or death.

2 SAFETY WARNING – Please read carefully.

This product complies with all CE directives pertinent at the time of manufacture. Contact the Sales

Department for Declaration of Conformity. Installation of a CE approved RFI filter is required (see Section 14.12, on page 30). Additional shielded cable and/or AC line cables may be required along with a signal isolator (SI-6 (Part No. 9444)).

3 INTRODUCTION

Thank you for purchasing the KBMM™ “Standard of the Industry” full-wave variable speed DC motor control, now with SMT construction. The control offers the user the ultimate in reliability and performance at an affordable

price. The controls contain a unique patented super-fast Direct-Fed™ current limit circuit that protects the SCR power bridge against direct shorts

. The reliability of the control is further enhanced with the use of high-surge, 25

Amp SCRs, and AC line and armature fusing

2, 3

. The control is designed with KB’s exclusive Plug-In Horsepower

Resistor®

, which eliminates the need for recalibrating IR Comp and Current Limit when the control is used on various horsepower motors. In addition, the rating of the control can be extended to 1.5 HP for controls with 90 Volt DC output and 3 HP for controls with 180 Volt DC output, by the use of KB’s Auxiliary Heat Sink

. Models KBMM-225 and KBMM-225D also allow operation of 90 Volt DC motors when used on 208/230 Volt AC line input

The versatility of the control is confirmed by its extensive list of standard features, such as: selectable armature and tach feedback and adjustment trimpots for minimum speed, maximum speed, current limit, IR compensation, and linear acceleration and deceleration. The control includes Auto-Inhibit®, which eliminates surging during rapid AC line switching; pulse transformer triggering, which provides cogless operation at low speed; and superior noise rejection circuitry, which eliminates false starts and blown SCRs. Enable (normally closed) and Inhibit (normally open) functions provide electronic switching of control output.

The output voltage of the control is a linear function of the Main Speed Potentiometer rotation. In addition, the control can be used in a voltage following mode by supplying an isolated analog input signal to Terminals “P2” (+) and “P1” (-)

. The control is compact in size (only 4.30” X 3.64” X 1.25”) and easily replaces all competitive speed controls. The control is supplied with a 5 k Ω Main Speed Potentiometer and QD terminals. All models are UL Listed (USA and Canada) and CE Approved.

Notes: 1. Short circuit protected at motor only. 2. KB Limited Warranty applies. See page 32. 3. Fuses and Plug-In Horsepower Resistor® supplied separately. See Sections 8 and 9, on pages 20 - 22. 4. Part No. 9861. See Section 14.1, on page 30. 5. Step-Down operation. 6. If an isolated signal input is not available, or if using a 4 - 20 mA DC signal input, install the optional plug-on SI-6 Signal Isolator (Part No. 9444).

3.1 Standard Features

1 Plug-In Horsepower Resistor® – Eliminates the need to calibrate the control for IR Compensation

and Current Limit when used on various horsepower motors.

2 Auto-Inhibit® – Allows the control to be rapidly switched “on” and “off” using the AC line.

3 Inhibit and Enable – Allows the control to be turned “on” and “off” using electronic switching.

4 Trimpots – Minimum Speed (MIN), Maximum Speed (MAX), IR Compensation (IR), Current Limit (CL),

Acceleration (ACCEL), and Deceleration (DECEL).

5 Jumpers – AC Line Input Voltage Selection (J1 (Model KBMM-225D only)), Motor Voltage and DC

Tach-Generator Selection (J2).

6 Protection Features – MOV transient protection. Short Circuit protected (at motor only).

7 Diagnostic LEDs – Power On (PWR ON) and Current Limit (CL).

8 Model KBMM-125 operates on 115 Volt AC line input with 90 Volt DC motors.

9 Model KBMM-225 operates on 230 Volt AC line input with 180 Volt DC motors or 90 Volt DC motors

(step-down). - Jumper Selectable.

10 Model KBMM-225D can operate on 115 Volt AC line input with 90 Volt DC motors and 230 Volt AC

line input with 180 Volt DC motors or 90 Volt DC motors (step-down). - Jumper selectable.

11 Armature or DC Tach-Generator feedback.

12 Built-in AC line and armature fusing.

13 Main Speed Potentiometer (5 kΩ).

14 SMT construction.

Notes: 1. Step-down operation: motor may have reduced brush life. Consult motor manufacturer. 2. Performance is for SCR rated permanent magnet motors

only. Lower performance can be expected with other motor types. Factory setting is for 3% load regulation. To obtain superior regulation, see Section 11.6, on

page 27.

Model

Part

No.

AC Line Voltage

(±15%, 50/60Hz)

(Volts AC)

Motor

Voltage

(Volts DC)

Maximum Rating without Auxiliary Heat Sink Maximum Rating with Auxiliary Heat Sink

Field

Voltage

(Volts DC)

AC Line Current

(RMS Amps)

DC Load

Current

(Avg. Amps)

Horsepower

(HP (kw))

AC Line Current

(RMS Amps)

DC Load

Current

(Avg. Amps)

Horsepower

(HP (kw))

KBMM-125 9449 115 0 - 90 12.0 8.0 .75 (.6) 24.0 16.0 1.5 (1.1) 50, 100

KBMM-225 9450 230

0 - 180 12.0 8.0 1.5 (1.1) 24.0 16.0 3 (2.3) 100, 200

0 - 90* 12.0 8.0 .75 (.6) 24.0 16.0 1.5 (1.1) 100

KBMM-225D 9451

115 0 - 90 12.0 8.0 .75 (.6) 24.0 16.0 1.5 (1.1) 50, 100

230

0 - 180 12.0 8.0 1.5 (1.1) 24.0 16.0 3 (2.3) 100, 200

0 - 90* 12.0 8.0 .75 (.6) 24.0 16.0 1.5 (1.1) 100

TABLE 1 – ELECTRICAL RATINGS

TABLE 2 – GENERAL PERFORMANCE SPECIFICATIONS

* Step-down operation.

Description Specification Factory Setting

Speed Range (Ratio) 50:1 —

Armature Feedback Load Regulation (0 - Full Load, 50:1 Speed Range) (% Base Speed) 1 —

Tach-Generator Feedback Load Regulation (0 - Full Load, 50:1 Speed Range) (% Set Speed) 1 —

Line Voltage Regulation (at Full Load, ± 10% Line Variation) (% Speed) 0.5 —

Control Linearity (% Output Voltage vs Signal Input Voltage) 2 —

Acceleration (ACCEL) Trimpot Range (Seconds) 0.2 – 10 2

Deceleration (DECEL) Trimpot Range (Seconds) 0.2 – 10 2

Maximum Speed (MAX) Trimpot Range (% Base Speed) 50 – 110 100

Minimum Speed (MIN) Trimpot Range (% Base Speed) 0 – 30 0

Current Limit (CL) Trimpot Range (% Full Load) 0 – 200 150

IR Compensation (IR) Trimpot Range (at Specified Full Load @ 90, 180 Volts DC Output) (Volts DC) 0 – 24, 48 3, 6

FIGURE 1 – CONTROL LAYOUT & GENERAL CONNECTION DIAGRAM (Model KBMM-225D Shown)

(Note: Control is set for 208 / 230 VAC line input, 0- 180 VDC output with armature feedback)

Red

Blue

A+

F-

Plug-In

Horsepower Resistor®

Supplied Separately

DECEL

ACCEL

MAX

High Wiper

Low

CONN1

AC Line Fuse

Supplied Separately Supplied Separately

Enable Switch (Close to Run) (Open to Stop)

Input

Main Speed PotentiometerAC Line

(Front View)

F+

PWR ON

Inhibit Switch (Open to Run)

(Close to Stop)

(Shunt Motors Only)

A-

Motor ArmatureMotor Field

MIN

Armature Fuse

For Plug-In Horsepower Resistor®, Line Fuse, and Armature Fuse Selection See Sections 8 and 9, on pages 20-22.

1000

DC Tach-Generator

(Set J2 to "T" Position)

+ 22 hidden pages