LEESON SM-Basic User Manual

ELECTRIC MOTORS, GEARMOTORS AND DRIVES

Variable Speed AC Motor Drives

Installation and Operation Manual

SM-Basic

EC Declaration of Conformity

In accordance with EN45014:1998

We,

Leeson Electric Corporation

2100 Washington Street

Grafton, Wisconsin 53024

USA
declare under sole responsibility that the following equipment to which this declaration relates, meets the
essential health and safety requirements and is in conformity with the relevant sections of the applicable
EC standards and other normative documents. If changes are made to the product that is covered by this
declaration of conformity, the declaration of conformity is no longer valid.

Equipment Type:

AC Variable Frequency Motor Drives:

174374.00 174375.00 174376.00 174377.00 174378.00

174379.00 174380.00 174381.00 174382.00 174383.00

174384.00 174385.00 174386.00 174387.00 174388.00

EC Directives:
By virtue of this conformity, the products are deemed to comply with the provisions of the Council of
European Communities Directives listed, provided installations are carried out in accordance with the
manufacturer’s instructions.

1) Low Voltage Directive 73/23/EEC as amended 93/68/EEC

2) Electromagnetic Compatibility Directive 89/336/EEC as amended 92/31/EEC

Harmonized Standards Used:

EN50081-2*: Electromagnetic Compatibility — Generic Emission Standard; Part 2: Industrial
Environment
EN50082-2*: Electromagnetic Compatibility — Generic Emission Standard; Part 2: Industrial
Environment
EN50178; 1998 Electronic Equipment for use in Power Installations

Authorized Representative:

* with suitable filters that are properly installed

Ms. Elisa Basso
Leeson Electric International Phone: [phone]
Via Caduti Di Sabbiuno 11/D-E Fax: [phone]
40011 Anzola Emilia Bologna
Italy

Dated this 2stday of May 2000.

Revision: 00, 5/02/2000

Peter F. Hennig
Senior Design Engineer

Manual Number: IMSN01

TABLE OF CONTENTS

1.0 GENERAL..................................................................................... 1

2.0 SM-Basic DIMENSIONS................................................... 2

3.0 SM-Basic MODEL DESIGNATION CODE.................... 3

4 . 0 SM-Basic SPECIFICATIONS............................................ 3

5.0 SM-Basic RATINGS............................................................ 4

6.0 INSTALLATION........................................................................... 5

7.0 INPUT AC POWER REQUIREMENTS..................................... 7

8.0 POWER WIRING ......................................................................... 8

9.0 SM-Basic POWER WIRING DIAGRAM........................ 9

10.0 CONTROL WIRING.................................................................... 10

11.0 SM-Basic CONTROL WIRING DIAGRAMS................. 1 3

12.0 INITIAL POWER UP AND MOTOR ROTATION................... 16

13.0 PROGRAMMING THE SM Basic DRIVE..................... 18

14.0 PARAMETER MENU.................................................................. 21

15.0 DESCRIPTION OF PARAMETERS.......................................... 23

16.0 TROUBLESHOOTING..................................................... 37

17.0 SM-Basic DISPLAY MESSAGES.................................... 3 9

18.0 USER SETTING RECORD.............................................. 41

THE SM-Basic SUB-MICRO DRIVE

INPUT POWER TERMINALS

ELECTRONIC
PROGRAMMING
MODULE (EPM)

PROGRAMMING
BUTTONS

CONTROL
TERMINAL
STRIP

GROUND
LUG

2-DIGIT LED
DISPLAY

OUTPUT (MOTOR) TERMINALS

1.0 GENERAL

1.1 PRODUCTS COVERED IN THIS MANUAL

This manual covers the Leeson Electric Corporation SM-Basic Series
Variable Frequency Drive.

1.2 PRODUCT CHANGES

Leeson Electric Corporation reserves the right to discontinue or make modifications to the
design of its products without prior notice, and holds no obligation to make modifications to
products sold previously. Leeson Electric Corporation also holds no liability for losses of any
kind which may result from this action.

1.3 WARRANTY

Leeson Electric Corporation warrants the SM-Basic AC motor control to be free of defects in
material and workmanship for a period of twelve months from the date of sale to the user, or
eighteen months from the date of shipment, which ever occurs first. If an SM-Basic motor
control, under normal use, becomes defective within the stated warranty time period, contact
Leeson Electric's Service Department for instructions on obtaining a warranty replacement
unit. Leeson Electric Corporation reserves the right to make the final determination as to the
validity of a warranty claim, and sole obligation is to repair or replace only components which
have been rendered defective due to faulty material or workmanship. No warranty claim will be
accepted for components which have been damaged due to mishandling, improper installation,
unauthorized repair and/or alteration of the product, operation in excess of design specifications
or other misuse, or improper maintenance. Leeson Electric Corporation makes no warranty
that its products are compatible with any other equipment, or to any specific application, to
which they may be applied and shall not be held liable for any other consequential damage or
injury arising from the use of its products.

This warranty is in lieu of all other warranties, expressed or implied. No other person, firm or
corporation is authorized to assume, for Leeson Electric Corporation, any
other liability in connection with the demonstration or sale of its products.

1.4 RECEIVING

Inspect all cartons for damage which may have occurred during shipping. Carefully unpack equipment
and inspect thoroughly for damage or shortage. Report any damage to carrier and/or shortages to
supplier. All major components and connections should be examined for damage and tightness, with
special attention given to PC boards, plugs, knobs and switches.

1.5 CUSTOMER MODIFICATION

Leeson Electric Corporation, its sales representatives and distributors, welcome the opportunity
to assist our customers in applying our products. Many customizing options are available to aid
in this function. Leeson Electric Corporation cannot assume responsibility for any modifications
not authorized by its engineering department.

1

2.0 SM-Basic DIMENSIONS

0.38"

H

W

D

INPUT

HP VOLTAGE MODEL H W D P R

0.25 120/208/240 174374 5.75 2.88 3.76 0.80 4.37
208/240 174378 5.75 2.88 3.76 0.80 4.37

0.5 120/208/240 174375 5.75 2.88 3.76 0.80 4.37
208/240 174379 5.75 2.88 3.76 0.80 4.37
400/240 174384 5.75 2.88 3.76 0.80 4.37

1 120/208/240 174376 5.75 3.76 5.24 1.90 4.37

400/480 174380 5.75 2.88 4.56 1.60 4.37
480/590 174385 5.75 2.88 4.56 1.60 4.37

1.5 120/208/240 174445 5.75 3.76 5.24 1.90 4.37
208/240 174381 5.75 3.76 5.24 1.90 4.37
208/240 174386 5.75 2.88 5.56 2.60 4.37

2 208/240 174382 5.75 3.76 5.24 1.90 4.37

208/240 174387 5.75 2.88 5.56 2.60 4.37

3 208/240 174383 5.75 3.76 6.74 3.40 4.37

208/240 174388 5.75 3.76 6.74 2.60 4.37

R

0.38"

0.18"

0.69"

P

0.19"
Dia. Slot

Mounting Tab Detail

2

3.0 SM-Basic MODEL DESIGNATION CODE

4.0 SM-Basic SPECIFICATIONS

Storage Tem perat ure -20 t o 70 C
Ambient Operating T em perat ure 0 t o 50 C (up to 6 k H z c arrier, derate abov e 6 k H z )
Ambient H um idit y < 95% (non-condensing)
Altitude 3300 ft (1000 m ) abov e s ea level (w it hout derating)
Input Line Voltages 120/208/240 Vac s ingle phase, 208/ 240 Vac t hree phase
Input Volt age Tolerance +10%, -15%
Input F requency Toleranc e 48 to 62 Hz
Output W ave F orm Sine Coded PWM
Output F requency 0 - 99 Hz
Carrier Frequency 4 kHz t o 10 k H z
Service F act or 1.00 (up to 6 kH z c arrier, derate abov e 6 kH z)
Effic ienc y Up to 98%
Power Fac t or (dis placem ent ) 0.96 or bett er
Overload Current C apac it y 150% for 60 sec onds, 180% f or 30 s ec onds
Speed Reference F ollower Speed Potentiomet er, 0-10 VDC (mus t be isolated)
Power Su pply f or Aux iliar y R elay 50 m A a t 12 VD C
Digital Out put Circuit rat ed 50 m A and 30 VD C m ax (t o drive aux iliary r elay)

1

WARNING: Control terminals are not isolated from line voltage! Do not touch!

1

1

3

5.0 SM-Basic RATINGS

MODEL (120/208/240 Vac, 50-60 Hz) (0-200/230 Vac) HEAT LOSS

INPUT OUTPUT

MODEL

NUMBER

FOR MOTORS

RATED

HP kW

INPUT
PHASE

CURRENT

(AMPS)

(NOTE 1)

POWER

(kVA)

CURRENT

(AMPS)

(NOTE 1)

WATTS

(NOTE 3)

174374 0.25 0.20 1 6.0/3.5/3.0 0.72 1.4/1.6/1.4 21

174375 0.5 0.37 1 9.2/5.3/4.6 1.1 2.2/2.5/2.2 28

174376 1.0 0.75 1 15.8/9.1/7.9 1.9 4.0/4.6/4.0 46

174377 1.5 1.1 1 21.3/12.3/10.7 2.6 5.4/6.2/5.4 66

NOTE 1: The first current rating listed is for 120 Vac input, the second current rating is for 208 Vac input,
and the third current rating is for 240 Vac input. 120 Vac input yields 230 Vac output.

INPUT OUTPUT

MODEL (208/240 Vac, 50-60 Hz) (0-200/230 Vac) HEAT LOSS

MODEL

NUMBER

FOR MOTORS

RATED

HP kW

INPUT

PHASE

CURRENT

(AMPS)

(NOTE 1)

POWER

(kVA)

CURRENT

(AMPS)

(NOTE 1)

WATTS

(NOTE 3)

174378 0.25 0.20 1 3.6/3.2 0.76 1.6/1.4 19

174379 0.5 0.37 1 5.4/4.7 1.2 2.4/2.2 26

174384 3 3.1/2.7 1.1 24

174380 1 0.75 1 9.7/8.4 2.1 4.6/4.0 47

174385 3 5.5/4.8 2.0 39

174381 1.5 1.1 1 12.4/10.8 2.6 6.2/5.4 74

174386 3 7.1/6.3 2.6 62

174382 2 1.5 1 14.8/12.9 3.1 7.8/6.8 86

174387 3 9.1/7.9 3.2 78

174383 3 2.2 1 19.7/17.1 4.1 11.0/9.6 130

174388 3 12.4/10.8 4.4 117

NOTE 1: Models are rated for use with single and three phase input.
NOTE 2: The higher current rating is for 208 Vac input and the lower current rating is for 240 Vac input.
NOTE 3: Values are worst-case (not typical) for 6 kHz carrier frequency at full speed and full load.

4

6.0 INSTALLATION

SM-Basic drives are intended for inclusion within other equipment, by professional electrical
installers. They are not intended for stand-alone operation.

DRIVES MUST NOT BE INSTALLED WHERE SUBJECTED TO ADVERSE ENVIRONMENTAL
CONDITIONS SUCH AS: COMBUSTIBLE, OILY, OR HAZARDOUS VAPORS OR DUST;
EXCESSIVE MOISTURE OR DIRT; VIBRATION; EXCESSIVE AMBIENT TEMPERATURES.
CONSULT AC TECHNOLOGY FOR MORE INFORMATION ON THE SUITABILITY OF A
DRIVE TO A PARTICULAR ENVIRONMENT.

Hazard of electrical shock! The SM-Basic control terminals are not isolated from line voltage!
Line voltage is present between the control terminals and ground. Do not touch!

Disconnect input power and wait three minutes before making connections to the control terminals.

Devices (such as switches, pushbuttons, potentiometers, relays, etc) and wiring connected to the
control terminals are hot to ground and must have an insulation rating of at least 240 Vac or a
dielectric rating of at least 1500 volts to prevent damage to equipment and/or injury to personnel.

SM-Basic models are suitable for UL pollution degree 2 environment only, and MUST be
installed in an electrical enclosure which will provide complete mechanical protection and will
maintain the internal temperature within the drive’s ambient operating temperature rating. All
drive models MUST be mounted in a vertical position for proper heatsink cooling.

Maintain a minimum spacing around the drive of at least one inch on each side and two inches on the
top and bottom. Allow more spacing if the drive is mounted next to other heat-producing equipment.
Do not mount drives above other drives or heat producing equipment. Fans or blowers should be
used to insure proper cooling in tight quarters.

NOTE!

WARNING!

WARNING!

In order to properly size an enclosure, the heat generated by the drive(s) must be known. Refer to the
HEAT LOSS column in Section 5.0 - SM-Basic RATINGS. An enclosure manufacturer can then
determine the required enclosure size based on the total heat generated inside the enclosure
(from the drive(s) and other heat sources), the maximum allowable temperature inside the
enclosure, the maximum ambient temperature outside the enclosure, and the enclosure properties.

The SM-Basic Series is UL approved for solid state motor overload protection. Therefore, a
separate thermal overload relay is not required for single motor applications.

5

6.1 INSTALLATION AFTER A LONG PERIOD OF STORAGE

Severe damage to the drive can result if it is operated after a long period of storage or inactivity
without reforming the DC bus capacitors!

If input power has not been applied to the drive for a period of time exceeding three years (due to
storage, etc), the electrolytic DC bus capacitors within the drive can change internally, resulting in
excessive leakage current. This can result in premature failure of the capacitors if the drive is operated
after such a long period of inactivity or storage.

In order to reform the capacitors and prepare the drive for operation after a long period of inactivity,
apply input power to the drive for 8 hours prior to actually operating the motor.

6.2 EXPLOSION PROOF APPLICATIONS

Explosion proof motors that are not rated for inverter use lose their certification when used for variable
speed. Due to the many areas of liability that may be encountered when dealing with these applications,
the following statement of policy applies:

“Leeson Electric Corporation inverter products are sold with no warranty of
fitness for a particular purpose or warranty of suitability for use with explosion
proof motors. Leeson Electric Corporation accepts no responsibility for any
direct, incidental or consequential loss, cost, or damage that may arise through
the use of its AC inverter products in these applications. The purchaser expressly
agrees to assume all risk of any loss, cost, or damage that may arise from such
application. Leeson Electric Corporation or Leeson Electric Corporation’s
engineering department will not knowingly approve applications involving
explosion proof motors.”

WARNING!

6

7.0 INPUT AC POWER REQUIREMENTS

Hazard of electrical shock! Capacitors retain charge after power is removed. Disconnect incoming
power and wait until the voltage between terminals B+ and B- is 0 VDC before servicing the drive.

The input voltage must match the nameplate voltage rating of the drive. Voltage fluctuation must not
vary by greater than 10% overvoltage or 15% undervoltage.

NOTE: Drives with dual input voltage ratings must be programmed for the proper supply voltage
(refer to Parameter 01 - LINE VOLTAGE SELECTION in Section 15.0 - DESCRIPTION OF
PARAMETERS).

The drive is suitable for use on a circuit capable of delivering not more than 5,000 RMS symmetrical
amperes at the drive’s rated voltage.

Three phase voltage imbalance must be less than 2.0% phase to phase. Excessive phase to phase
imbalance can cause severe damage to the drive.

Motor voltage should match line voltage in normal applications. The drive’s maximum output voltage
will equal the input voltage. Use extreme caution when using a motor with a voltage rating which is
different from the input line voltage.

7.1 INPUT VOLTAGE RATINGS

SM-Basic Series drives are rated for 120/208/240 Vac, single phase, 50-60 Hz input. The
drive will function with input voltage of 120 Vac (+10%, -15%), at 48 to 60 Hz, or with input
voltage of 208 to 240 Vac (+ 10%, - 15%), at 48 to 62 Hz.

SM-Basic Series drives are rated for 208/240 Vac, single phase, 50-60 Hz input. The drive
will function with input voltages of 208 to 240 Vac (+10%, -15%), at 48 to 62 Hz.

WARNING!

SM-Basic Series drives are rated for 208/240 Vac, three phase, 50-60 Hz input. The drive will

function with input voltages of 208 to 240 Vac (+ 10%, - 15%), at 48 to 62 Hz.

NOTE: Parameter 01 - LINE VOLTAGE SELECTION must be programmed according to the applied
input voltage. See Section 15.0 - DESCRIPTION OF PARAMETERS.

7.2 INPUT FUSING AND DISCONNECT REQUIREMENTS

A circuit breaker or a disconnect switch with fuses must be provided in accordance with the National
Electric Code (NEC) and all local codes.

The SM-Basic drive is capable of withstanding up to 150% current overload for 60 seconds.
Select a fuse or magnetic trip circuit breaker rated at 1.5 times the input current rating of the
drive (the minimum fuse size should be 10 amps, regardless of input current rating). Refer to
Section 5.0 - SM-Basic RATINGS.

7

Minimum voltage rating of the protection device should be 250 Vac for 120/208/240 Vac and 208/
240 Vac rated drives.

UL Class CC fast-acting, current limiting type fuses should be used when input fusing is required.
Select fuses with low I

2

T values, rated at 200,000 AIC. Recommended fuses are Bussman KTK-R.

Similar fuses with equivalent ratings by other manufacturers may also be acceptable.

8.0 POWER WIRING

Hazard of electrical shock! Capacitors retain charge after power is removed. Disconnect incoming
power and wait until the voltage between terminals B+ and B- is 0 VDC before servicing the drive.

Note drive input and output current ratings and check applicable electrical codes for required wire
type and size, grounding requirements, over-current protection, and incoming power disconnect,
before wiring the drive. Size conservatively to minimize voltage drop.

Strip off 0.20 to 0.25 inches of insulation for input power, output power, and DC Bus wiring. The
input power, output power, and DC Bus terminals must be tightened to a torque of 4.0 to 4.5 lb-in.

Input fusing and a power disconnect switch or contactor MUST be wired in series with terminals L1,
L2, and L3 for three phase input models. For 208/240 Vac single phase input models, use terminals
L1 and L2. For 120 Vac single phase input models, use terminals L1 and N. This disconnect must be
used to power down the drive when servicing, or when the drive is not to be operated for a long
period of time, but should not be used to start and stop the motor. Repetitive cycling of a disconnect
or input contactor (more than once every two minutes) may cause damage to the drive.

8.1 WIRING FOR SINGLE PHASE OR THREE PHASE INPUT

If the drive is rated for 120/208/240 Vac single phase input, wire the input to terminals L1 and
N for 120 Vac voltage, or wire to terminals L1 and L2 (do not wire to N) for 208/240 Vac input
voltage. Refer to Section 9.0 - SM-Basic POWER WIRING DIAGRAM.

WARNING!

If the drive is rated for 208/240 Vac single phase input, wire the input to terminals L1 and L2.

If the drive is rated for three phase input, wire the input to terminals L1, L2, and L3.

All three power output wires, from terminals T1, T2, and T3 to the motor, must be kept tightly
bundled and run in a separate conduit away from all other power and control wiring.

Do not install contactors or disconnects between the drive and motor without consulting Leeson
Electric Corporation for more information.

8

9.0 SM-Basic POWER WIRING DIAGRAM

THREE PHASE INPUT

(where applicable)

L1 L2 L3

208/240 Vac SINGLE PHASE INPUT

(where applicable)

L1 L2 L3*

120 Vac SINGLE PHASE INPUT

(where applicable)

L1 L2 N

OUTPUT (ALL)

T1 T2 T3 B- B+

+

3 PHASE

AC MOTOR

WARNING!

Do not connect incoming AC power to output terminals T1, T2, or T3. Severe damage to the drive
will result.

DC BUS

VOLTAGE

NOTES:

1. WIRE AND GROUND IN ACCORDANCE WITH NEC OR CEC, AND ALL APPLICABLE
LOCAL CODES.

2. Motor wires MUST be run in a separate steel conduit away from control wiring and incoming AC
power wiring.

3. Do not install contactors between the drive and the motor without consulting Leeson
Electric Corporation for more information. Failure to do so may result in drive damage.

4. Use only UL and CSA listed and approved wire.

5. Minimum wire voltage ratings: 300 V for 120, 208 and 240 Vac systems.

6. Wire gauge must be based on a minimum of 125% of the rated input/output current of the drive,
and a minimum 75°C insulation rating. Use copper wire only.

7. Strip off 0.20 to 0.25 inches of insulation for input power, output power, and DC Bus wiring.

9

10.0 CONTROL WIRING

Hazard of electrical shock! The SM-Basic control terminals are not isolated from line voltage!
Line voltage is present between the control terminals and ground. Do not touch!

Disconnect input power and wait three minutes before making connections to the control terminals.

Devices (such as switches, pushbuttons, potentiometers, relays, etc) and wiring connected to the
control terminals are hot to ground and must have an insulation rating of at least 240 Vac or a
dielectric rating of at least 1500 volts to prevent damage to equipment and/or injury to personnel.

10.1 CONTROL WIRING VS. POWER WIRING

External control wiring MUST be run in a separate conduit away from all other input and output
power wiring. If control wiring is not kept separate from power wiring, electrical noise may be
generated on the control wiring that will cause erratic drive behavior. Use twisted wires or shielded
cable rated for 300 VDC minimum (do not ground the shield).

10.2 SURGE SUPPRESION ON RELAYS

Current and voltage surges and spikes in the coils of contactors, relays, and solenoids, near or connected
to the drive, can cause erratic drive operation. Snubbers should be used on any coils associated with
the drive. For AC loads, snubbers should consist of a resistor and a capacitor in series across the coil.
For DC loads, a free-wheeling or flyback diode should be placed across the coil.

10.3 START/STOP CONTROL

There are various control schemes that allow for 2-wire and 3-wire Start/Stop circuits. Refer to the
wiring diagrams in Section 11.0 - SM-Basic CONTROL WIRING DIAGRAMS.

10.4 SPEED REFERENCE SIGNALS

WARNING!

SPEED POT Connect the wiper to terminal TB-5, and connect the high and low end leads to

0-10 VDC Wire the positive to terminal TB-5 and the negative to terminal TB-3. The 0-10

DO NOT connect the low side of the speed pot or 0-10 VDC signal to ground.

terminals TB-6 and TB-3, respectively. The speed pot can be 5kΩ up to 10kΩ.

VDC signal must be isolated, as the control terminals are at line voltage potential.

10

10.5 SPEED REFERENCE SELECTION

If a speed pot is to be used to control the drive speed, terminal TB-13A, 13B, or 13C (Parameter 10,
11, or 12) may be programmed as the input select for the speed pot. When that TB-13 terminal is then
closed to TB-11, the drive will follow the speed pot input.

If the speed pot is not selected on the terminal strip using TB-13A, 13B, or 13C, speed control will
default to STANDARD mode, which is governed by the setting of Parameter 05 - STANDARD
SPEED SOURCE. The STANDARD SPEED SOURCE can be the I and J buttons on the front of
the drive, PRESET SPEED #1 (Parameter 31), or a speed pot.

PRESET SPEEDS

TB-13A can be programmed to select PRESET SPEED #1, TB-13B to select PRESET SPEED #2,
and TB-13C to select PRESET SPEED #3. There are a total of seven preset speeds, which are
activated by different combinations of contact closures between TB-13A, 13B, 13C and TB-11. Refer
to Parameters 31-37 in Section 15.0 - DESCRIPTION OF PARAMETERS.

JOG

TB-13B can be programmed to select either JOG FORWARD or JOG REVERSE. The Jog speed is
set by PRESET SPEED #2. Close TB-13B to TB-11 to JOG, and open the contact to STOP.

When operating in JOG mode, the STOP signal and the AUXILIARY STOP function (see Parameters
10-12) WILL NOT stop the drive. To stop the drive, remove the JOG command.

JOG REVERSE will operate the drive in reverse rotation even if ROTATION DIRECTION (Parameter

17) is set to FORWARD ONLY.

NOTE: If the drive is commanded to JOG while running, the drive will enter JOG mode and run at
PRESET SPEED #2. When the JOG command is removed, the drive will STOP.

MOTOR OPERATED POT (MOP) / FLOATING POINT CONTROL

TB-13B and TB-13C are required for this function, which controls the drive speed using normally
open contacts wired to the terminal strip. Program TB-13B for DECREASE FREQ, and program
TB-13C for INCREASE FREQ. Closing the contacts between the TB-13 terminals and TB-11 will
cause the speed setpoint to increase or decrease until the contact is opened. The INCREASE FREQ
function will only operate while the drive is running.

NOTE: If TB-13A, TB-13B, and TB-13C are all programmed to select speed references, and two or
three of the terminals are closed to TB-11, the higher terminal has priority and will override the
others. For example, if TB-13A is programmed to select a speed pot, and TB-13C is programmed to
select PRESET SPEED #3, closing both terminals to TB-11 will cause the drive to respond to PRESET
SPEED #3, because TB-13C overrides TB-13A.

WARNING!

11