Pacific Scientific


Pacific Scientific

5445-230 Image 1


The 5445-230 is a hybrid stepper motor drive in the 5000 series by Pacific Scientific. It effectively manages intelligent motion systems and affordable board-level drivers. With an emphasis on outstanding performance, reliability, and user-friendly software, it offers Indexer Functionality & Drive Configuration and a PacSci Stepper Basic programming language. The 5445-230 operates at 120 volts AC, responsible for converting step and direction inputs into motor winding currents, controlling a 2-phase bipolar stepper motor. It has an output specification of 5.0 amps/phase with a 65 volts DC bus. The 5445-230 is optimally designed for compatibility with Pacific Scientific's SIGMA line of hybrid stepper motors. The drive is adaptable to both the enhanced and standard SIGMA motors, given that the winding of the hybrid stepper motor is compatible with the driver package output rating. With a 20 kHz chopping rate, the motor drive efficiently manages motor winding currents using pulse width modulation. Additionally, the hybrid stepper motor drive accepts current control output, step pulse, and direction, generating the appropriate outputs to drive 2-phase stepper motors. The three signal inputs are optically isolated for added protection. The power supply, a line-operated step-down transformer, has control mechanisms to safeguard the drive. A power dump circuit is incorporated, designed to dissipate excess supply energy when the voltage exceeds eighty volts, as might sometimes occur under specific deceleration conditions.

5445-230 by Pacific Scientific is a Stepper Motor Drive that is ready to run intelligent motion systems to economical board level drivers. Featuring high performance magnetic and electronic innovations, this 5445-230 features a Functionality & Drive Configuration of Indexer with PacSci Stepper Basic programming language, Integral power supply and a Power Level of 7.1 A peak, (6000 family only), 5 A rms 65 Vdc with integral power supply, 18 - 75 Vdc with user provided power supply.

Revision Part #:

Manufacturer Pacific Scientific
Product Type Hybrid Stepper Motor Drive
Model 5445-230
Operating Voltage 120 volts AC
Standard Output 5.0 amps/phase, DC bus 65 volts
Compatibility SIGMA Line of Hybrid Stepper Motors
Driver Package Well-suited to Motor Winding
Current Regulation Method Pulse Width Modulation (20 kHz chopping rate)
Power Supply Step-down Transformer, Includes Power Dump Circuit

Distribution Cache Shipping Info and Options

Shipping Carriers: Here at Distribution Cache we ship using UPS, FedEx, DHL, or TNT. In most cases we get very competitive rates based on our volume and will be happy quote shipping cost to your location upon request. We also know that many customers would prefer to ship collect on their own account numbers and welcome this option.

Shipping Blind: We recognize that many of our customers intend to re-sell the product to their end user. We respect our customer’s relationships with their clients and offer blind shipping as an option to ensure that the package arrives in the most clandestine way possible.

Shipping Process: We take pride in the way we package your order and spare no cost in making sure that it arrives safely at your facility. In the case of new parts, we are always sure to package the factory box inside another larger box for safe transit. For reconditioned parts we often use Distribution Cache customized packaging that is specially made to protect the products from the bumps and falls present during shipment.


Shipping Options:

Next Day Air Early AM - This service is the fastest overnight delivery option available. For most locations the package will be guaranteed by 8:30AM.

Next Day Air – This service guarantees delivery by 10:30AM and is the most frequently used option for overnight shipments.

Next Day Air Saver – This cost saving overnight alternative guarantees delivery by 3PM the next day.

2nd Day Air – For domestic shipments that would take 3-5 days if shipped via Ground, sometimes having the order in 2 days is a great way to go

Ground – Ground is the most inexpensive shipping option provided. Please ask if we are doing a “free domestic ground” shipping promotion on your order. We often provide free ground shipping on larger orders.


Emergency Courier – At times we can help work with a courier service to get the part to your facility during downtimes scenarios. We prefer that the customer sets up the courier but we can be there to make sure the product is handed off to the driver. Please give us a call to see if this is an option on your order.

Please Note: Products listed as “ships today” can ship same-day if an order is placed before 4PM. For larger drives and motors we ask that notification for same-day shipments be provided by 2PM at the latest. For any products listed as “ships in 3-5 days”, please give us a call to see if this can be expedited.