Description
2 phase step motor bipolar chopper drive technical data :
• DC power supply : 15 ÷ 48 Vdc
• Phase current : 0,4 ÷ 2,4 Apeak
• Chopper frequency: ultrasonic 40KHz;
• Emulated Step angle: Full Step, ½, ¼, 1/8, 1/16, 1/32, 1/64, 1/128, 1/5, 1/10, 1/20, 1/25, 1/30, 1/36, 1/50, 1/100
configurable by means of Dip-Switches and other step angle could be defined by software.
• Protections against : over current, over/under voltage, overheating, short circuit between motor phase-to-
phase and phase-to-ground;
• Service SCI interface for programming and real time debugging
• Dimensions : 93 x 52 x 21,5 mm (without connectors);
• Protection degree : IP20 ;
• Pollution degree : 2 ;
• Working temperature 5°C ÷ 40°C ; Storage temperature -25°C ÷ 55°C ;
• Humidity : 5% ÷ 85% not condensing;
| Model | Max Current | Power Supply | Control Mode | Input/Output | Matched Step Motor |
| EPDO-02 | 2.4A | 15-48V | PULSE MODE | 3 IN/0 OUT | NEMA8 TO NEMA17 OPEN LOOP |
| EPDO-04 | 4.5A | 24-48V | PULSE MODE | 3 IN/1 OUT | NEMA23 TO NEMA24 OPEN LOOP |
| EPDO-08 | 7.8A | 24-75V | PULSE MODE | 3 IN/1 OUT | NEMA34 OPEN LOOP |
| EPAO-04 | 4.2A | 100-240VAC | PULSE MODE | 4 IN/1 OUT | NEMA34 OPEN LOOP |
| EPDC-10 | 10A | 24-75VDC | PULSE MODE/programmable | 3 IN/2 OUT | NEMA11 TO NEMA 34 CLOOSE LOOP |
Working Status (LED )
Driver disabled : green blinking (1s)
Driver enabled : green on
Motor open phase: red on
Motor phase shortcut : red blinking (100 ms)
Over voltage: green on (1 sec) – red on (1 sec)
Under Voltage: green on (1 sec) – red on (1 sec) – red on (1 sec)
Over temperature : green on (1 sec) – red on (1 sec) – red on (1 sec) – red on (1 sec)
Verify the installation
– Check all connections : Power supply, Stepper motor and control logics.
– Make sure that all settings are correct for the application.
– Make sure that the characteristics of the DC power supply are appropriate for the drive.
– If possible, remove the load from the rotor of the motor to avoid wrong movements and eventual damages.
– Supply power and make sure that the green led is on or blinking. If the led is OFF, shut down immediately and check if
all connections are correct.
– Enable the current in the motor (without STEP Clock) and, if possible, verify the presence of the Holding Torque.
– Execute a movement of some steps and verify if the rotation direction is the desired one.
Taking advantage of the proactive climate of the 70s, in 1977 the engineer Felice Caldi, who had always been a passionate builder and inventor, founded an innovative company, operating internationally in the field of software for industrial machinery.
Since then, this small company based in Lodi has enjoyed continuous successes related to innovative products and cutting edge “best in class” technologies in the field of industrial automation, as proven by the many patents filed during the years as well as the important awards given to it by the Chamber of Commerce of Milan and of the Lombardy Region.
The company, thanks to its successes over time, has grown considerably, expanding its sales network abroad and opening another company in China to manage the sales flow in the Asian market.
Ever attentive to the dynamics and needs of the automation market, constantly evolving and continually seeking technological innovation, Ever Elettronica has been able to respond to all the technological challenges that have arisen over the years, providing solutions able to make its customer’s machines more and more performing and highly competitive.
And it is precisely to underline the importance and the uniqueness of every single customer that we design, with care and dedication, highly customised automation solutions, that are able to perfectly meet any request, both regarding software and hardware.
Our team of mechatronic engineers can indeed customise the software with specially designed firmware, and it can also adapt the motor by customising, for example, the length of the cables or the diameter of the crankshaft and the IP protection degree, all strictly based on the customer’s technical specifications.
