LEESON SM-Plus User Manual

Installation and Operation Manual

SPEEDMASTER

®

SM PLUS™ SERIES SUB-MICRO INVERTERS

TABLE OF CONTENTS

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

2.0 SM-Plus™DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

4.0 SM-Plus™SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

5.0 SM-Plus™RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

6.0 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

7.0 INPUT AC POWER REQUIREMENTS . . . . . . . . . . . . . . . . . . . .9

8.0 POWER WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

9.0 SM-Plus™POWER WIRING DIAGRAM . . . . . . . . . . . . . . . . . . .13

10.0 CONTROL WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

11.0 SM-Plus™CONTROL WIRING DIAGRAMS . . . . . . . . . . . . . . .17

12.0 INITIAL POWER UP AND MOTOR ROTATION . . . . . . . . . . .22

13.0 PROGRAMMING THE SM-Plus™DRIVE . . . . . . . . . . . . . . . . .24

14.0 PARAMETER MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

15.0 DESCRIPTION OF PARAMETERS . . . . . . . . . . . . . . . . . . . . . . .31

16.0 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

17.0 SM-Plus™DISPLAY MESSAGES . . . . . . . . . . . . . . . . . . . . . . . . .49

APPENDIX B - PI SETPOINT CONTROL OPTION . . . . . . . . .51

IMPORTANT NOTICE

The following , and information is supplied to you for your
protection and to provide you with many years of trouble free and safe operation of your LEESON
Electric product.

• 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.

• Hazard of electrical shock! Wait three minutes after disconnecting incoming power before
servicing drive. Capacitors retain charge after power is removed.

• Automatic starting of equipment may cause damage to equipment and / or injury to personnel!
Automatic start should only be used on equipment that is inaccessible to personnel.

• 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 LEESON ELECTRIC FOR MORE INFORMATION ON
THE SUITABILITY OF A DRIVE TO A PARTICULAR ENVIRONMENT.

• 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!

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

• When operating in JOG mode, the STOP terminal (TB-1) and the STOP key (on the optional
remote keypad) WILL NO

T stop the drive. To stop the drive, remove the JOG command.

• When operating in JOG mode, the STOP terminal (TB-1), the AUXILIARY STOP function (see
setting 08), and the STOP key on the optional remote keypad 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.

• DO NOT connect incoming AC power to output terminals T1, T2, and T3! Severe damage to
the drive will result. Do not continuously cycle input power to the drive more than once every
two minutes. Damage to the drive will result.

• Do not remove the EPM while power is applied to the drive. Damage to the EPM and/or drive
may result.

• Controlling the drive from the serial link without the watchdog timer could cause damage to
equipment and/or injury to personnel!

• Consult qualified personnel with questions. All electrical repairs must be performed by trained
and qualified personnel only.

Resale of Goods:

In the event of the resale of any of the goods, in whatever form, Resellers/Buyers will include the following language in
a conspicuous place and in a conspicuous manner in a written agreement covering such sale:

The manufacturer makes no warranty or representations, express or implied, by operation of law or otherwise, as
the merchantability or fitness for a particular purpose of the goods sold hereunder. Buyer acknowledges that it
alone has determined that the goods purchased hereunder will suitably meet the requirements of their intended
use. In no event will the manufacturer be liable for consequential, incidental or other damages. Even if the repair
or replacement remedy shall be deemed to have failed of its essential purpose under Section 2-719 of the Uniform
Commercial Code, the manufacturer shall have no liability to Buyer for consequential damages.

Resellers/Buyers agree to also include this entire document including the warnings and cautions above in
a conspicuous place and in a conspicuous manner in writing to instruct users on the safe usage of the
product.

SUB-MICRO DRIVE

INPUT POWER

TERMINALS

GROUND LUG

ELECTRONIC

PROGRAMMING

MODULE (EPM)

PROGRAMMING

BUTTONS

OUTPUT (MOTOR)

TERMINALS

3-DIGIT LED

DISPLAY

CONTROL

TERMINAL

STRIP

SPEEDMASTER®SM-PLUS

™

LEESON Electric

1.0 GENERAL

1.1 PRODUCTS COVERED IN THIS MANUAL

This manual covers the LEESON Electric SM-Plus™Variable Frequency Drive.

1.2 PRODUCT CHANGES

LEESON Electric 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 also holds no liability for losses of any kind which may result from this action.
Instruction manuals with the most up-to-date information are available for download at the LEESON
Electric website (www.leeson.com).

1.3 WARRANTY

LEESON Electric warrants the SM-Plus™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 a SM-Plus™motor control, under normal use, becomes
defective within the stated warranty time period, contact LEESON’s Service Department for instructions
on obtaining a warranty replacement unit. LEESON Electric 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 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, any other liability in connection with
the demonstration or sale of its products.

NOTE 1: LEESON will match mode of transportation if drive is repaired under warranty. Customer

will be invoiced for shipping if no problem is found, if the repair is non-warranty, or if the return mode
is different.

NOTE 2: There is a minimum inspection fee of $100.00 if no problem is found. There is an
additional charge of 25% for Rush Service.

1

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, 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 cannot assume responsibility for any modifications not authorized by its engineering
department.

2

3

INPUT

HP kW VOLTAGE MODEL H W D P R

0.25 0.20 208 / 240 174452 5.75 (146) 2.88 (73) 3.94 (100) 0.80 (20) 4.37 (111)

0.5 0.37 208 /240 174453 5.75 (146) 2.88 (73) 3.94 (100) 0.80 (20) 4.37 (111)
400 / 480 174459 5.75 (146) 2.88 (73) 3.94 (100) 0.80 (20) 4.37 (111)

1 0.75 120/280/240 174492 5.75 (146) 3.76 (96) 5.24 (133) 1.90 (48) 4.37 (111)

208 / 240 174454 5.75 (146) 2.88 (73) 4.74 (120) 1.60 (41) 4.37 (111)
208 / 240 174455 5.75 (146) 2.88 (73) 4.74 (120) 1.60 (41) 4.37 (111)
400 / 480 174460 5.75 (146) 2.88 (73) 4.74 (120) 1.60 (41) 4.37 (111)
480 / 590 174464 5.75 (146) 2.88 (73) 4.74 (120) 1.60 (41) 4.37 (111)

1.5 1.1 120/280/240 174445 5.75 (146) 3.76 (96) 5.24 (133) 1.90 (48) 4.37 (111)
208 / 240 174493 5.75 (146) 3.76 (96) 5.24 (133) 1.90 (48) 4.37 (111)
208 / 240 174456 5.75 (146) 2.88 (73) 5.74 (146) 2.60 (66) 4.37 (111)
400 / 480 174461 5.75 (146) 2.88 (73) 5.74 (146) 2.60 (66) 4.37 (111)

2.0 SM-Plus™DIMENSIONS

D

P

V

U

T

S

Dia. Slot

Mounting Tab Detail

H

W

R

0.38"

If R < 6.30"

S = 0.19"
T = 0.38"
U = 0.18"
V = 0.69"

If R = 6.30"

S = 0.28"
T = 0.50"
U = 0.24"
V = 0.92"

4

INPUT

HP kW VOLTAGE MODEL H W D P R

2 1.5 208 / 240 174494 5.75 (146) 3.76 (96) 6.74 (171) 3.40 (86) 4.37 (111)

208 / 240 174457 5.75 (146) 2.88 (73) 5.74 (146) 2.60 (66) 3.06 (78)
400 / 480 174462 5.75 (146) 2.88 (73) 5.74 (146) 2.60 (66) 4.37 (111)
480 / 590 174491 5.75 (146) 2.88 (73) 5.74 (146) 2.60 (66) 4.37 (111)

3 2.2 208 / 240 174495 5.75 (146) 3.76 (96) 6.74 (171) 3.40 (86) 3.25 (83)

208 / 240 174458 5.75 (146) 2.88 (73) 5.74 (146) 2.60 (66) 3.06 (78)
400 / 480 174463 5.75 (146) 2.88 (73) 5.74 (146) 2.60 (66) 3.06 (78)
480 / 590 174497 5.75 (146) 3.76 (96) 6.74 (171) 3.40 (86) 4.37 (111)

5 3.7 208 / 240 174444 7.75 (197) 5.02 (128) 7.18 (182) 3.40 (86) 4.81 (122)

208 / 240 174446 5.75 (146) 3.76 (96) 6.74 (171) 3.40 (86) 3.25 (83)
400 / 480 174447 5.75 (146) 3.76 (96) 6.74 (171) 3.40 (86) 3.25 (83)
480 / 590 174448 5.75 (146) 3.76 (96) 6.74 (171) 3.40 (86) 3.25 (83)

7.5 5.5 208 / 240 174438 7.75 (197) 5.02 (128) 7.18 (182) 3.40 (86) 4.81 (122)
400 / 480 174440 7.75 (197) 5.02 (128) 7.18 (182) 3.40 (86) 4.81 (122)
480 / 590 174442 7.75 (197) 5.02 (128) 7.18 (182) 3.40 (86) 4.81 (122)

10 7.5 208 / 240 174439 7.75 (197) 5.02 (128) 7.18 (182) 3.40 (86) 4.81 (122)

400 / 480 174441 7.75 (197) 5.02 (128) 7.18 (182) 3.40 (86) 4.81 (122)
480 / 590 174443 7.75 (197) 5.02 (128) 7.18 (182) 3.40 (86) 4.81 (122)

15 11 208 / 240 174429 9.75 (248) 6.68 (170) 8.00 (203) 3.60 (91) 6.30 (160)

400 / 480 174431 9.75 (248) 6.68 (170) 8.00 (203) 3.60 (91) 6.30 (160)
480 / 590 174434 9.75 (248) 6.68 (170) 8.00 (203) 3.60 (91) 6.30 (160)

20 15 208 / 240 174430 9.75 (248) 6.68 (170) 8.00 (203) 3.60 (91) 6.30 (160)

400 / 480 174432 9.75 (248) 6.68 (170) 8.00 (203) 3.60 (91) 6.30 (160)
480 / 590 174435 9.75 (248) 6.68 (170) 8.00 (203) 3.60 (91) 6.30 (160)

25 18.5 400 / 480 174433 9.75 (248) 6.68 (170) 8.00 (203) 3.60 (91) 6.30 (160)

480 / 590 174436 9.75 (248) 6.68 (170) 8.00 (203) 3.60 (91) 6.30 (160)

30 22 400/480 174500 9.75 (248) 6.68 (170) 8.00 (203) 3.60 (91) 6.30 (160)

5

4.0 SM-Plus™SPECIFICATIONS

Storage Temperature -20° to 70° C
Ambient Operating Temperature 0° to 50° C (derate 2.5% per °C above 50°)
Ambient Humidity <95% (non-condensing)
Maximum Altitude 3300 ft (1000m) above sea level

(derate 5% per additional 3300 ft)
Input Line Voltages 120/208/240 VAC, 208/240 Vac, 400/480 Vac, 480/590 Vac
Input Voltage Tolerance +10%, -15%
Input Frequency Tolerance 48 to 62 Hz
Output Wave Form Sine Coded PWM
Output Frequency 0 - 240 Hz (consult Factory for higher output

frequencies)
Carrier Frequency 4 kHz to 10 kHz

(over 6 kHz requires derating; see parameter P02)
Service Factor 1.00 (up to 6 kHz carrier,

derate above 6 kHz; see parameter P02)
Efficiency Up to 98%
Power Factor (displacement) 0.96 or better
Overload Current Capacity 150% for 60 seconds, 180% for 30 seconds
Speed Reference Follower 0 - 10 VDC, 4 - 20 mA
Control Voltage 15 VDC
Power Supply for Auxiliary Relays 50 mA at 12 VDC
Analog Outputs 0 - 10 VDC or 2 - 10 VDC: Proportional to frequency

or load
Digital Outputs Open-collector outputs: 50 mA at 30 VDC

6

MODEL FOR MOTORS INPUT (50-60 Hz) OUTPUT HEAT LOSS

NUMBER RATED INPUT CURRENT POWER CURRENT (WATTS)

HP kW PHASE (AMPS) (NOTE 1) (kVA) (AMPS) (NOTE 2)

120/208/240 VAC 0 - 230/200/230 VAC

174492 1 0.75 1 16.6/9.6/8.3 2.0 4.2/4.8/4.2 48

174445 1.5 1.1 1 24/13.9/12.0 2.9 6.0/6.9/6.0 73

208/240 Vac 0 - 200/230 Vac

174452 0.25 0.20 1 3.6/3.2 0.76 1.6/1.4 19

174452 0.25 0.20 3 1.9/1.7 0.71 1.6/1.4 19

174453 0.5 0.37 1 5.4/4.7 1.2 2.5/2.2 26

174453 0.5 0.37 3 3.1/2.7 1.1 2.5/2.2 26

174454 1 0.75 1 10.6/9.2 2.2 4.8/4.2 49

174454 1 .075 3 5.8/5.1 2.1 4.8/4.2 49

174493 1.5 1.1 1 13.9/12.0 2.9 6.9/6.0 82

174493 1.5 1.1 3 8.0/6.9 2.9 6.9/6.0 82

174494 2 1.5 1 14.8/12.9 3.1 7.8/6.8 86

174494 2 1.5 3 9.1/7.9 3.2 7.8/6.8 86

174495 3 2.2 1 19.7/17.1 4.1 11.0/9.6 130

174495 3 2.2 3 12.4/10.8 4.4 11.0/9.6 130

174444 5 3.7 1 29/26 6.1 17.5/15.2 212

174444 5 3.7 3 19.6/17.1 7.1 17.5/15.2 212

208/240 Vac 0 - 200/230 Vac

174455 1 0.75 3 5.8/5.1 2.1 4.8/4.2 41

174456 1.5 1.1 3 8.0/6.9 2.9 6.9/6.0 69

174457 2 1.5 3 9.1/7.9 3.3 7.8/6.8 78

174458 3 2.2 3 12.4/10.8 4.5 11.0/9.6 117

174446 5 3.7 3 19.6/17.1 7.1 17.5/15.2 187

174438 7.5 5.5 3 28/25 10.3 25/22 286

174439 10 7.5 3 34/32 13.1 30/28 379

174429 15 11 3 54/48 20.0 48/42 476

174430 20 15 3 65/61 25.4 58/54 648

NOTE 1: The higher current ratings are for 208 Vac input and the lower current ratings are for 240
Vac input.

NOTE 2: Values are worst-case (not typical) for 6 kHz carrier frequency at full speed and full load.

5.0 SM-Plus™RATINGS

7

MODEL FOR MOTORS INPUT (50-60 Hz) OUTPUT HEAT LOSS

NUMBER RATED INPUT CURRENT POWER CURRENT (WATTS)

HP kW PHASE (AMPS) (kVA) (AMPS) (NOTE 2)

400/480 Vac

0 - 400/460 Vac

(NOTE 3)

174459 0.5 0.37 3 1.6/1.4 1.1 1.3/1.1 26

174460 1 0.75 3 2.9/2.5 2.1 2.4/2.1 40

174461 1.5 1.1 3 4.0/3.6 3.0 3.4/3.0 56

174462 2 1.5 3 4.6/4.0 3.3 3.9/3.4 67

174463 3 2.2 3 6.2/5.4 4.5 5.5/4.8 100

174447 5 3.7 3 9.8/8.6 7.1 8.7/7.6 168

174440 7.5 5.5 3 14.2/12.4 10.3 12.6/11.0 254

174441 10 7.5 3 18.1/15.8 13.1 16.1/14.0 310

174431 15 11 3 27/24 20.0 24/21 390

174432 20 15 3 35/31 25.8 31/27 530

174433 25 18.5 3 44/38 31.6 39/34 648

174500 30 22 3 53/45 37.4 46/40 770

480/590 Vac

0 - 460/575 Vac

(NOTE 4)

174464 1 0.75 3 2.2/2.0 1.9/2.0 1.9/1.7 40

174491 2 1.5 3 4.0/3.5 3.3/3.6 3.4/3.0 67

174497 3 2.2 3 4.7/4.7 3.9/4.8 4.2/4.2 100

174448 5 3.7 3 7.4/7.4 6.1/7.5 6.6/6.6 168

174442 7.5 5.5 3 11.2/11.2 9.3/11.4 9.9/9.9 254

174443 10 7.5 3 13.7/13.7 11.4/14.0 12.2/12.2 310

174434 15 11 3 22/22 18.3/22.5 19.0/19.0 390

174435 20 15 3 27/27 22.4/27.6 24/24 530

174436 25 18.5 3 31/31 25.8/31.7 27/27 648

NOTE 2: Values are worst-case (not typical) for 6 kHz carrier frequency at full speed and full load.
NOTE 3: The higher current ratings are for 400 Vac input and the lower current ratings are for 480

Vac input.
NOTE 4: The higher current ratings for for 480 Vac input and the lower current ratings are for 590
Vac input.

6.0 INSTALLATION

NOTE: SM-Plus™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 LEESON ELECTRIC FOR MORE INFORMATION ON THE
SUITABILITY OF A DRIVE TO A PARTICULAR ENVIRONMENT.

SM-Plus™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 drives models MUST be
mounted in a vertical position for proper heatsink cooling.

Maintain a minimum spacing around the drive of at least 1 inch (25mm) on each side and 2 inches
(50mm) on the top and bottom for units rated up to 5 HP (3.7 kW). For units rated 7.5 - 25 HP (5.5-

18.5 kW), maintain at least 2 inches (50mm) on each side and 4 inches (100mm) 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.

In order to properly size an enclosure, the heat generated by the drive(s) must be known. Refer to the
HEAT LOSS columns in Section 5.0 - SM-Plus™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 outside the enclosure, and the enclosure properties.

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

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.

8

9

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 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 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.”

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 5 HP (3.7 kW), and below, and 18,000 RMS symmetrical amperes at 7.5 HP
(5.5 kW) and above, at the drive’s rated voltage.

If the kVA rating of the AC supply transformer is greater than 10 times the input kVA rating of the
drive(s), an isolation transformer or 2-3% input line reactor must be added to the line side of the drive(s).

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’s power components.

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.

10

7.1 INPUT VOLTAGE RATINGS

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.

Drives that are rated for 208/240 Vac, three phase, 50-60 Hz input will function with input voltages of
208 to 240 Vac (+10%, -15%), at 48 to 62 Hz.

Drives that are rated for 208/240 Vac, single or three phase, 50-60 Hz input will function with input
voltage of 208 to 240 Vac (+10%, -15%), at 48 to 62 Hz.

Drives that are rated for 400/480 Vac, three phase, 50-60 Hz input will function with input voltages of
400 to 480 Vac (+10%, -15%), at 48 to 62 Hz.

Drives that are rated for 480/590 Vac, three phase, 50-60 Hz input will function with input voltages of
480 to 590 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. Refer to the following table for proper fuse/circuit breaker
rating and wire size.

11

INPUT FUSE / CIRCUIT BREAKER RATINGS AND WIRE SIZE REQUIREMENTS (Note 1)

208/240 Vac, 1 phase 208/240 Vac, 3 phase 400/480 Vac, 3 phase 480/490 Vac, 3 phase

Catalog Fuse Rating Wire Size Catalog Fuse Rating Wire Size Catalog Fuse Rating Wire Size Catalog Fuse Rating Wire Size

HP Number Note(2) AWG (mm

2

) Number Note(2) AWG (mm2) Number Note(2) AWG (mm2) Number Note(2) AWG (mm2)

0.25 174452 10A 14(1.5) 174452 10A 14(1.5)

0.5 174453 10A 14(1.5) 174453 10A 14(1.5) 174459 10A 14(1.5)

1 174454 15A 12(1.5)

174454

10A 14(1.5) 174460 10A 14(1.5) 174464 10A 14(1.5)

174455

1.5 174493 20A 12(2.5)

174493

12/10A 14(1.5) 174461 10A 14(1.5)

174456

2 174494 25/20A 10(2.5)

174494

15/12A 12(2.5) 174462 10A 14(1.5) 174491 10A 14(1.5)

174457

3 174495 30/25A 10(4.0)

174495

20/15A 10(4.0) 174463 10A 14(1.5) 174497 10A 14(1.5)

174458

5 174444 45/40A 10(6.0)

174444

30/25A 8(6.0) 174447 15A 14(1.5) 174448 12A 14(1.5)

174446

7.5 174438 45/40A 8(6.0) 174440 20A 12(2.5) 174442 20A 14(1.5)

10 174439 50/50A 8(10) 174441 30/25A 10(4.0) 174443 20A 12(2.5)

15 174429 80/75A 6(16) 174431 40/35A 8(6.0) 174434 30A 10(4.0)

20 174430 100/90A 4(25) 174432 50/45A 8(10) 174435 40A 8(6.0)

25 174433 70/60A 6(16) 174436 45A 8(6.0)

30 174500 80/70A 6(16)

NOTE 1: Applicable national and local electrical codes take precedence over recommendations in this table.
NOTE 2: Use UL Class CC or Class T fast-acting, current limiting type fuses. Select fuses with low I

2

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

Refer to Section 9.0 - SCF POWER WIRING DIAGRAM for information on torque and wire stripping
requirements for power wiring.

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-Plus™POWER WIRING DIAGRAM.

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

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.

It is not recommended to install contactors or disconnect switches between the drive and motor.
Operating such devices while the drive is running can potentially cause damage to the drive’s power
components. If such a device is required, it should only be operated when the drive is in a STOP state.
If there is potential for the device to be opened while the drive is running, the drive must be programmed
for COAST to stop (see Parameter 4 - STOP METHOD), and an auxiliary contact on the device must
be interlocked with the drive’s run circuit. This will give the drive a stop command at the same time the
device opens, and will not allow the drive to start again until the device is closed.

12

13

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

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

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, and 600 V for 400, 480,

and 590 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.

9.0 SM-Plus™POWER WIRING DIAGRAM

THREE PHASE INPUT

(WHERE APPLICABLE)

OUTPUT (ALL MODELS)

120 Vac SINGLE PHASE INPUT

(WHERE APPLICABLE)

208/240 Vac SINGLE PHASE INPUT

(WHERE APPLICABLE)

WIRE STRIP & TERMINAL

SCREW TORQUE DATA

0.25 - 5 HP 7.5 - 10 HP 15 - 30 HP

(0.37 - 3.7 kW) (5.5 - 7.5 kW) (11 - 22 kW)

4.5 lb-in / 0.5 Nm 10 lb-in / 1.2 Nm 18 lb-in / 2.0 Nm

0.24 in / 6 mm 0.35 in / 9 mm 0.5 in / 13 mm

14

10.0 CONTROL WIRING

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 grounded at the
drive chassis ONLY. Recommended control wire is Belden 8760 (2-wire) or 8770 (3-wire), or equivalent.

Strip off 0.20 to 0.25 inches (5 to 6mm) of insulation for control wiring, and torque the terminals to 2
lb.-in. (0.2 Nm). Be careful not to overtorque the control terminals, as this will cause damage to the
terminal strip. This is not covered under warranty and can only be repaired by replacing the control
board.

10.2 TB-2: CIRCUIT COMMON

The TB-2 terminals are used as circuit common for the start/stop, forward/reverse, input select,
local/remote, analog input, and analog output functions. There are three TB-2 terminals
available on the terminal strip, and they are all internally connected to each other on the main control
board. If necessary TB-2 may be connected to chassis ground.

NOTE: TB-2 must be connected to chassis ground when using serial communications.

10.3 SURGE SUPPRESSION ON RELAYS

Current and voltage surges and spikes in the coils of contactors, relays, solenoids, etc, near or connected
to the drive, can cause erratic drive operation. Therefore, a snubber circuit should be used on coils
associated with the drive. For AC coils, snubbers should consist of a resistor and a capacitor in series
across the coil. For DC coils, a free-wheeling or flyback diode should be placed across the coil. Snubbers
are typically available from the manufacturer of the device.

10.4 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-Plus™CONTROL WIRING DIAGRAMS.

10.5 SPEED REFERENCE SIGNALS

The drive allows for three analog speed reference inputs:

SPEED POT Connect the wiper of a speed pot to terminal TB-5, and connect the high and low end

leads to terminals TB-6 and TB-2, respectively. The speed pot can be 2.5kΩ up to
10kΩ.

0-10 VDC Wire the positive to terminal TB-5 and the negative to terminal TB-2. TB-5 input

impedance is 120 kilohms.

4-20 mA Wire the positive to terminal TB-25 and the negative to terminal TB-2. TB-25 input

impedance is 100 ohms.

15

10.6 SPEED REFERENCE SELECTION

If an analog speed reference input is 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 desired
analog input signal. When that TB-13 terminal is then closed to TB-2, the drive will follow the selected
analog speed reference input.

If an analog speed reference input 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 ▲ and ▼ buttons
on the front of the drive, PRESET SPEED #1(Parameter 31), a 0-10 VDC signal, or a 4-20 mA signal.

0-10 VDC and 4-20 mA INPUT SIGNALS

TB-13A, TB-13B, and TB-13C can all be programmed to select a 0-10 VDC or 4-20 mA analog speed
reference input.

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-2. 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-2 to JOG, and open the contact to STOP.

When operating in JOG mode, the STOP terminal (TB-1) and the STOP key (on the
optional remote keypad) 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 used for this function, which controls the drive speed using contacts wired to
the terminal strip. Program TB-13B for DECREASE FREQ (05), and program TB-13C for INCREASE
FREQ (05). Closing TB-13B to TB-2 will cause the speed setpoint to decrease until the contact is
opened. Closing TB-13C to TB-2 will cause the speed setpoint to increase until the contact is opened.
The INCREASE FREQ function will only operate while the drive is running.

16

NOTE: IfTB-13A, TB-13B, and TB-13C are all programmed to select speed references, and two or three
of the terminals are closed to TB-2, the higher terminal has priority and will override the others. For
example, if TB-13A is programmed to select 0-10 VDC, and TB-13C is programmed to select PRESET
SPEED #3, closing both terminals to TB-2 will cause the drive to respond to PRESET SPEED #3,
because TB-13C overrides TB-13A.

The exception to this is the MOP function, which requires the use of TB-13B and TB-13C. This
leaves TB-13A to be used for some other function. If TB-13A is programmed for a speed reference, and
TB-13A is closed to TB-2, TB-13A will override the MOP function.

10.7 ANALOG OUTPUT SIGNALS

Terminal TB-30 can provide a 0-10 VDC or a 2-10 VDC signal proportional to output frequency or
load, and TB-31 can provide the same signals proportional to load only. The 2-10 VDC signal can be
converted to a 4-20 mA signal using a resistor in series with the signal such that the total load resistance
is 500 Ohms. Refer to Parameters 08 and 09 in Section 15.0 - DESCRIPTION OF PARAMETERS.

NOTE: These analog output signals cannot be used with “loop-powered” devices that derive power from
a 4-20 mA signal.

10.8 DRIVE STATUS DIGITAL OUTPUTS

There are two open-collector outputs at terminals TB-14 and TB-15. The open-collector circuits are cur­rent-sinking types rated at 30 VDC and 50 mA maximum.

The open-collector outputs can be programmed to indicate any of the following: RUN, FAULT,
INVERSE FAULT, FAULT LOCKOUT, AT SPEED, ABOVE PRESET SPEED #3, CURRENT
LIMIT, AUTO SPEED MODE, and REVERSE. Refer to Parameters 06 and 13 in Section 15.0 ­DESCRIPTION OF PARAMETERS.

The diagram below illustrates how the 12 VDC power supply at TB-11 can be used with the open-col­lector output to drive an external relay:

DIODE SNUBBER

(1N4148 or Equivalent)

RELAY COIL

TB-14

TB-11

SM-PLUS™

TERMINAL STRIP