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1Q PWM Chassis Adjustable Speed Drive

with Isolation for PMDC Brushed Motors

MMP 90V-

10

A-PWM

1000 Industries Circle

Howard Lake, MN 55349

Phone: (320) 490-7060

Fax: (480) 247-4096

www.midwestmotion.com

......................................................115/230 VAC ± 10%, 50/60 Hz, single phase

..........................................................................................................................1.05

....................................................................................0.5 - 6 seconds

....................................................................coast to stop - 6 seconds

........................................................................0 - 5 VDC

.......................................................................................~70K ohms

...................................................................................1% base speed or be�er

......................................................................................................................100:1

............................................................................................0.5G maximum

...............................................................................................0.1G maximum

...................................................................................10°C - 40°C

..............................................................................................................................1.3 lbs

AC Line Voltage

Form Factor

Accelera�on Time Range

Decelera�on Time Range

Analog Input Voltage Range 

(S1 to S2)

Input Impedance 

(S1 to S2)

Load Regula�on

Speed Range

Vibra�on

 (0 - 50 Hz)

(>50 Hz)

Ambient Temperature Range

Weight

*10 amps up to 25°C ambient. De

-

rate to 7 amps when over 25°C ambient.

Heatsink must be installed for 10 Amp operation, contact our offices for details.

1/2   - 1

1       - 2

Horsepower

Range

*

10.0

Continuous

Armature

Current 

(Amps) 

0 - 130

0 - 240

Armature

Voltage Range

(VDC) 

115

230

Line

Voltage

(VAC) 

MMP

 

90V-

10

A-PWM

Model

Specifications 

Safety Warnings

DO NOT INSTALL, REMOVE, OR REWIRE THIS EQUIPMENT WITH POWER APPLIED.

 Have a

qualified electrical technician install, adjust and service this equipment. Follow the Na�onal

Electrical Code and all other applicable electrical and safety codes, including the provisions of the

Occupa�onal Safety and Health Act (OSHA), when installing equipment.

Circuit poten�als are at 115 or 230 VAC above earth ground

. Avoid direct contact with the printed

circuit board or with circuit elements to prevent the risk of serious injury or fatality. Use a non-

metallic screwdriver for adjus�ng the calibra�on trim pots. Use approved personal protec�on

equipment and insulated tools if working on this drive with power applied.

• Reduce the chance of an electrical fire, shock, or explosion by using proper grounding techniques,

over-current protec�on, thermal protec�on, and enclosure. Follow sound maintenance procedures.

• 

 Midwest Mo�on Products strongly recommends the installa�on of a master power switch in the 

line voltage input.

 The switch contacts should be rated for 250 VAC and 200% of motor nameplate 

current.

Do not disconnect any of the motor leads from the drive

 unless power is removed or the drive is 

disabled. Opening any one lead while the drive is running may destroy the drive.

• Under no circumstances should power and logic level wires be bundled together.

• Be sure poten�ometer tabs do no make contact with the poten�ometer’s body. Grounding the

input will cause damage to the drive.

ALL DIMENSIONS IN INCH

ES [MILLIMETERS]

Dimensions

0.19 [5]

3.90 [99]

2.10 [53]

0.82 [21]

0.96 [24]

3.64 [92]

0.19 [5]

1.75 [44]

0.70 [18]

4.30 [109]

3.80 [97]

IL501

TH501

30

5

Q

IL502

10

5T

C503

10

5

C

C505

C502

C504

10

5

R

D

IBI

H

NI

T

LIMIT

S3

S2

S1

2L

1L

2A

1A

CURRENT

POWER

CURRENT LIMIT

DECEL

ACCEL

IR COMP

MAX SPD MIN SPD

Installation

Moun�ng

• Drive components are sensi�ve to electrosta�c discharge. Avoid direct contact with the circuit

board. Hold the drive by the chassis or heat sink only.

• Protect the drive from dirt, moisture, and accidental contact.

• Provide sufficient room for access to the terminal block and calibra�on trim pots.

• Mount the drive away from heat sources.  Operate the drive within the specified ambient opera�ng

temperature range.

• Prevent loose connec�ons by avoiding excessive vibra�on of the drive.

• Mount the drive with its board in either a horizontal or ver�cal plane. Eight 0.19” (5 mm) wide slots

in the chassis accept #8 pan head screws. Fasten either the large base or the narrow flange of the

chassis to the subplate.

• The chassis should be earth grounded. Use a star washer beneath the head of at least one of the

moun�ng screws to penetrate the anodized chassis surface and to reach bare metal.

Heat Sinking

The drive requires an addi�onal heat sink when the con�nuous armature current is above 5 amps. 

Use a thermally conduc�ve heat sink compound (such as Dow Corning 340® Heat Sink Compound) 

between the chassis and the heat sink surface for op�mal heat transfer.

Wiring

Use 18 - 24 AWG wire for logic wiring. Use 14 - 16 AWG wire for AC line and motor wiring.

Shielding Guidelines

As a general rule, it is recommended to shield all conductors. If it is not prac�cal to shield power

conductors, it is recommended to shield all logic-level leads. If shielding of logic-level leads is not

prac�cal, the user should twist all logic leads with themselves to minimize induced noise. It may be

necessary to earth ground the shielded cable. If noise is produced by devices other than the drive,

ground the shield at the drive end. If noise is generated by the drive, ground the shield at the end

away from the drive. Do not ground both ends of the shield.

Fusing

The drive requires an external line fuse for protec�on. Use fast ac�ng fuses rated for 250 VAC or

higher and 150% of the maximum armature current. Fuse the HOT leg of the AC line when using 115

VAC and both lines when using 230 VAC.

MOTOR

FUSE

*FUSE

STOP

SWITCH

AC LINE

VOLTAGE

120/240 VAC

Signal Common (-)

* NOTE:  Do not add fuse to L2

unless input voltage is 230 VAC.

Inhibit

Terminals

Connections

IL501

TH501

30

5

Q

IL502

10

5T

C503

10

5

C

C505

C502

C504

10

5

R

D

IBI

H

NI

T

LIMIT

S3

S2

S1

2L

1L

2A

1A

CURRENT

POWER

CURRENT LIMIT

DECEL

ACCEL

IR COMP

MAX SPD MIN SPD

Signal Input (+)

POWER

Line Input

Connect the AC line power leads to terminals L1 and L2. 

MMP

 recommends the use of a double-pole,

 

single-

throw master power switch. The switch should be rated at a minimum of 250 VAC and 200% of motor

 

current.

Motor

Connect the DC armature leads to terminals A1 and A2. If the motor does not spin in the desired direc�on,

 

power down the drive and reverse these connec�ons.

LOGIC

Speed Poten�ometer

Use a 10K ohm, 1/4 W poten�ometer for speed control. Connect the counter-clockwise end of the

poten�ometer to S1, the wiper to S2, and the clockwise end to S3. If the poten�ometer works inversely of

 

desired func�onality, (i.e. to increase motor speed, you must turn the poten�ometer counterclockwise),

 

power off the drive and swap the S1 and S3 connec�ons.

Analog Input Signal Range

The drive may be wired to follow an analog input voltage signal (0-5 VDC). Because these drives have 

built in isola�on, the input signal can be grounded or ungrounded (floa�ng). Connect the signal common (-) 

to S1 and the signal input (+) to S2.

Inhibit

Short the INHIBIT terminals to coast the motor to zero speed. Open the INHIBIT terminals to

accelerate the motor to set speed. Twist inhibit wires and seperate them from power-carrying wires or

 

sources of electrical noise. Use shielded cable if the inhibit wires are longer than 18 inches (46 cm). If

 

shielded cable is used, ground only one end of the shield to earth ground. Do not ground both ends of

the shield. 

Do not use the inhibit for emergency stopping

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