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4Q SCR Chassis Microprocessor-based

Adjustable Speed Drive with Speed

or Torque Mode for PMDC Brushed Motors

MGB400

An ISO 9001:2008 Certified Company

TM

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

........................................................................................................0 - 15 Amps

...................................................................................................1.37 at base speed

..................................................................................................1% base speed

.........................................................................................................................50:1

......................................................................................0.25 seconds

......................................................................................0.25 seconds

.........................................0 to ± 10 VDC

...............................................................................>100K ohms

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

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

.......................................................................10°C - 50°C

.............................................................................................................0.62 lbs (0.28 kg)

......................................cULus Recognized, UL 61800-5-1, File # E132235

AC Line Voltage

AC Line Current

Form Factor

Load Regula

on

 

Speed Range

 

Accelera

on Time Range

Decelera

on Time Range

Analog Input Voltage Range 

(Signal must be isolated)

Input Impedance (COM to SIG)

Vibra

on

 (0 - 50 Hz)

                  (>50 Hz)

Surrounding Air Temperature Range

Weight

Safety Cer

fica

ons

* Heat sink kit 223-0159 must be used when the output is over 8 amps.

1/50 - 1/8

1/25 - 1/4

 1/8  - 1

 1/4  - 2

Armature

Horsepower

Range

1.5

11.0*

Armature

Current (Amps) 

0 - 90

0 - 180

0 - 90

0 - 180

Armature

Voltage Range

(VDC) 

115

230

115

230

Line

Voltage

(VAC) 

MGB400-1.5

MGB400-11

Model

Specifications 

WARNING: 

The circuits connected to terminals COM, AX1, AX2, SIG, and +V are NOT isolated from

power circuits by Protec

ve Separa

on in accordance with UL 61800-5-1. Protec

ve separa

on to

protect these circuits against direct contact is to be supplied by the end user.

•  

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, over-current

  protec

on, thermal protec

on, and enclosure. Follow sound maintenance procedures.

• 

 ACE 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.

•  

Removing AC line power is the only acceptable method for emergency stopping.

 Do not use

  regenera

ve braking, decelera

ng to minimum speed, or coas

ng to a stop for emergency stopping.

  They may not stop a drive that is malfunc

oning. Removing AC line power is the only acceptable

  method for emergency stopping.

•  Line star

ng and stopping (applying and removing AC line voltage) is recommended for infrequent

  star

ng and stopping of a drive only. Regenera

ve braking, decelera

ng to minimum speed, or

  coas

ng to a stop is recommended for frequent starts and stops. Frequent star

ng and stopping can

  produce high torque. This may cause damage to motors.

•  

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.

•  This product does not contain speed sensi

ve overload protec

on, thermal memory reten

on, or 

  provisions to receive and act upon signals from remote devices for over temperature protec

on. If 

  motor protec

on is needed in the end-use product, it needs to be provided by addi

onal equipment 

  in accordance with NEC standards.

•  This product does not have internal solid state motor overload protec

on. It does not contain speed-

  sensi

ve overload protec

on, thermal memory reten

on, or provisions to receive and act upon

  signals from remote devices for over temperature protec

on. If motor protec

on is needed in the

  end-use product, it needs to be provided by addi

onal equipment in accordance with NEC standards.

READ ALL SAFETY WARNINGS BEFORE INSTALLING THIS EQUIPMENT

Safety Warnings

ALL DIMENSIONS IN INCHES [MILLIMETERS]

3.64 [93]

3.00 [76]

1.25 [32]

0.50 [13]

3.80 [97]

4.30 [110]

1.34 [34]

0.95 [24]

Dimensions

SCCR (Short Circuit Current Ra

ng): 

MGB400 series drives are suitable for use on a circuit capable of

delivering not more than 5,000 RMS symmetrical amperes, 115/230 volts maximum.

 

Branch Circuit Protec

on: 

Class J, Class CC, or Class T fuses are to be rated with a minimum of 230 VAC 

and a maximum current ra

ng of 40 amps. Circuit breakers are to be rated at a minimum of 230 VAC 

with a maximum current ra

ng of 30 amps.

Moun

ng

•  

Install the drive in a Pollu

on Degree 2 environment only.

•  Drive components are sensi

ve to electrosta

c discharge. Avoid direct contact with the circuit

•  

board. Hold the drive by the chassis 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. Connect the ground to the green screw on the chassis.

Heat Sinking: 

The MGB400-11 requires an addi

onal heat sink when the con

nuous armature current 

is above 8 amps. Use heat sink kit part number 223-0159. 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: 

60°C wire was used in UL evalua

on of the power wiring terminals (L1, L2, A1, A2). Use 

18 - 24 AWG wire for logic wiring. Use 14 AWG wire for AC line (L1, L2) and motor (A1, A2) 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. 

Refer to the user’s manual for details on earth grounding shielded wires and filtering.

Installation

DIRECTION

SWITCH

STOP

SWITCH

AC LINE

VOLTAGE

115 / 230 VAC

10K OHM

SPEED ADJUST

POTENTIOMETER

CW

ENABLE / INHIBIT

SWITCH

MOTOR

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 COM, wiper to SIG, and the clockwise end to +V. If the poten

ometer works

inveresly of desired func

onality, (i.e. to increase motor speed, you must turn the poten

ometer

counterclockwire), power off the drive and swap the COM and +V connec

ons. To use an isolated

analog signal instead, connect the signal nega

ve (-) to COM and the signal reference (+) to SIG.

 

     

Direc

on (AX1)

Short terminals AX1 and COM to change the direc

on of The motor. If no direc

on switch is desired, 

leave this connec

on open.

Inhibit / Enable (AX2)

Short terminals AX2 and COM to stop the motor. Refer to jumpers 2 and 3 in the Startup sec

on to

determine if the switch is normally open or normally closed, and if the motor will regenera

vely brake

or coast to a stop. 

Do not use the inhibit or enable for emergency stopping.

Warning: 

The circuits connected to terminals AX1, AX2, COM, SIG, and +V are not isolated from the 

power circuits by Protec

ve Separa

on in accordance with UL 61800-5-1. Protec

ve separa

on to

protect these circuits against direct contact is to be supplied by the end user.

Line Input

Connect the AC line power leads to terminals L1 and L2, or to a double-pole, single-throw master

power switch (recommended). 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

POWER

Connections

Email distribuidores: acotron@acotron.com

Calz. Federalismo Sur 214, Col. Centro, 

C.P. 44100, Guadalajara, Jalisco.

Tel Oficina Central: 33- 3826-7004

www.acotron.com

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