Anaheim Stepper MLP08041 Users Guide

#L010172March 2005
MLP08041
High Performance Microstepping Driver
User’s Guide
910 East Orangefair Lane, Anaheim, CA 92801
e-mail: [email protected](714) 992-6990  fax: (714) 992-0471
website: www.anaheimautomation.com
ANAHEIM AUTOMATION 

#L010172March 2005
MLP08041 High Performance Microstepping Driver Features
•  High Torque Output
•  Output Current 10.0 Amps Peak
•  200 to 800 steps/rev (1,2, and 4 selectable step operations)
•  Short Circuit Protection
•  Over-Temperature and Over/Under-Voltage Shutdown
•  No Minimum Inductance
•  Optical Isolation
•  Motor ON/OFF input
Introduction
The MLP08041 High Performance Microstepping Driver has an output current capability of 2.0 Amps mini-
mum to 10.0 Amps maximum (Peak Rating). The MLP08041...

#L010172March 2005
P1: 8 Pin Input Terminal Description
Table 2: Pin descriptions for input terminal connector (P1)
TB1: 6 Pin Motor Terminal Description
Table 3: Pin descriptions for motor terminal block connector (TB1)
Power Supply Requirements
The MLP08041 has an input line voltage ranging from 35-130VAC. TB1 pin 2 is used as the hot terminal
and is internally fused, TB1 pin 1 is used as the neutral terminal. A DC input of 50-185 volts can also be
used to power the drive. To connect the DC to the...

#L010172March 2005
Absolute Maximum Ratings
Input Voltage: 132 VAC or 185 VDC
Output Current: 10.0 AMPS PEAK
Max Plate Temperature: 70° C
Storage Temperature: 0° to +50° C
Input Voltage (For isolated inputs):  +7V at 1mA
Ready Output Signal: Open Collector max. 30V / 50mA (optically isolated)
Electrical Specifications
Table 4: MLP08041 electrical specifications 

#L010172March 2005
Hook Up Drawings
Figure 1: Hook up for current sinking inputs
Figure 2: Hook up for current sourcing inputs 

#L010172March 2005
Motor Selection
The MLP08041 is a Bipolar Microstep Driver that is compatible with both Bipolar and Unipolar Motor
Configurations, (i.e. 8 and 4 lead motors, and 6 lead center tapped motors).
Step motors with low current ratings and high inductance will perform better at low speeds, providing
higher low-end torque. Motors with high current ratings and low inductance will perform better at higher
speeds, providing more high-end torque. Higher voltages will cause the current to flow...

#L010172March 2005
Microstep Selection
Jumpers JP3 and JP4 select the microstep resolution of the driver. Table 6 shows the standard resolution
values along with the associated positions for the select switches. The standard waveforms are sinusoi-
dal. The steps/rev are based on a 200 step/rev motor.
Setting the Output Current
The output current on the MLP08041 is set by an onboard potentiometer. This potentiometer determines
the per phase peak output current of the driver. The relationship between the...

#L010172March 2005
When configuring the motor in a series configuration (connected from end to end with the center tap
floating) use the specified per Phase (or unipolar) current rating to determine the current setting potenti-
ometer value.
Reducing Output Current
Reducing the output current is automatically set and occurs approximately 1 second after the last positive
going edge of the step clock input. The amount of current per phase in the reduction mode is approxi-
mately 50% of the set current....

#L010172March 2005
4 Lead Motors
Multiply the specified series motor current by 1.4 to determine the current adjustment potentiometer
value. Four Lead Motors are usually rated with their appropriate series current, as opposed to the Phase
Current, which is the rating for 6 and 8 lead motors.
8 Lead Motors
Series Connection: When configuring the motor windings in series, use the per Phase (or unipolar)
current rating to determine the current setting potentiometer value.
Parallel Connection: When...

#L010172March 2005
Connecting the Step Motor
Phase 1 and 3 of the step motor is connected between pins 1 and 2 on the motor connector (TB2).  Phase
2 and 4 of the step motor is connected between pins 3 and 4 on the motor connector (TB2).  The motors
case should be grounded to pin 5 on the motor connector (TB2) for protection. Refer to Figures 1 and 2 for
TYPICAL APPLICATION HOOK-UP.
NOTE: The physical direction of the motor with respect to the direction input will depend on the connection
of the motor...