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Dart Controls MD3E - MD3E DIGITAL DRIVE NEMA 4, CLOSED LOOP PROGRAMMABLE DISPLAY

Dart Controls MD3E MD3E DIGITAL DRIVE NEMA 4, CLOSED LOOP PROGRAMMABLE DISPLAY


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Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Dart Controls MD3E is a compact, programmable DC speed control designed for precision motor applications. This digital drive features closed-loop feedback with a large LED display, allowing direct readout in RPM, FPM, GPM, or custom engineering units. The on-board microprocessor with non-volatile memory ensures exact, repeatable speed control to within 1/2 RPM of set speed without calibration. The MD3E supports motor ratings from 1/8 to 2 horsepower with 90 or 180 VDC motor voltage and operates on 120 or 240 VAC supply voltage. Front-panel programming via Up/Down pushbuttons enables easy configuration of parameters like maximum/minimum set speed, decimal points, and operating modes (master or follower). The unit includes a 1/8 DIN or 1/4 DIN standard cutout for panel installation and rear-mounted screw terminals for direct wiring. Ideal for commercial and industrial applications requiring precise speed control, the MD3E is factory-installed in a NEMA 4 enclosure for watertight, corrosion-resistant protection. Compatible with Dart’s PU-40E/PU-40R pickup for applications under 2500 RPM.
  • Closed-loop programmable DC drive with LED display for direct RPM/FPM/GPM readout
  • Supports 1/8 to 2 HP motors with 90 or 180 VDC motor voltage
  • Operates on 120 or 240 VAC supply voltage; NEMA 4 enclosure for protection
  • Front-panel programming with Up/Down pushbuttons for parameter setup
  • 1/8 DIN or 1/4 DIN cutout for panel installation; rear-mounted screw terminals

Specifications

Connection Type
Screw Terminal
Mounting Type
Panel Mount (1/8 DIN or 1/4 DIN)
Nema Rating
NEMA 4
Series
Micro-Drive
Package Weight (Imperial)
0.99 kg
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MD50E

MD50E DIGITAL DRIVE NEMA 4, CLOSED LOOP PROGRAMMABLE DISPLAY
MD50E DIGITAL DRIVE NEMA 4, CLOSED LOOP PROG DISPLAY, REMOTE PB

MD50E-1

MD50E DIGITAL DRIVE NEMA 4, CLOSED LOOP PROG DISPLAY, REMOTE PB
SCR DRIVE NEMA 4 ISO 4-20mA FOLLOWER AUTO MAN

251G-12E-7

SCR DRIVE NEMA 4 ISO 4-20mA FOLLOWER AUTO MAN
SCR DRIVE NEMA 4 1/8HP ADJ ACCEL

251G-12E

SCR DRIVE NEMA 4 1/8HP ADJ ACCEL
SCR DRIVE NEMA 4 1/8-2HP ADJ ACCEL

253G-200E

SCR DRIVE NEMA 4 1/8-2HP ADJ ACCEL
SCR DRIVE NEMA 4 1/8HP ISO VOLTAGE/4-20mA FOLLOWER AUTO MAN

251G-12E-56H2

SCR DRIVE NEMA 4 1/8HP ISO VOLTAGE/4-20mA FOLLOWER AUTO MAN
15DVE DC DRIVE NEMA 4/12 90/180VDC

15DVE

15DVE DC DRIVE NEMA 4/12 90/180VDC
DC DRIVE NEMA 4/12, 120/240VAC - 90/180VDC, ISO 4-20mA FOLLOW AUTO/MAN

530BRE-7

DC DRIVE NEMA 4/12, 120/240VAC - 90/180VDC, ISO 4-20mA FOLLOW AUTO/MAN
SCR DRIVE NEMA 4 1/8-2HP ISO VOLTAGE FOLLOWER AUTO MAN

253G-200E-56H2

SCR DRIVE NEMA 4 1/8-2HP ISO VOLTAGE FOLLOWER AUTO MAN
SCR DRIVE NEMA 4 1/8HP REVERSING ADJ ACCEL

251G-12E-29

SCR DRIVE NEMA 4 1/8HP REVERSING ADJ ACCEL
13DVE DC DRIVE NEMA 4/12 12/24VDC

13DVE

13DVE DC DRIVE NEMA 4/12 12/24VDC
CHASSIS SCR DRIVE 1/8-2HP ADJ ACCEL ISO 4-20mA FOLLOWER

253G-200C-5

CHASSIS SCR DRIVE 1/8-2HP ADJ ACCEL ISO 4-20mA FOLLOWER

Frequently Asked Questions about Dart Controls

What certifications and standards do Dart Controls products comply with?

Dart Controls products are certified to multiple international standards across electrical, safety, and environmental domains. Key certifications include UL (cULus), CE, UKCA, EAC, and C-Tick, with compliance to standards such as ISO 9001, RoHS, EN 60529, IEC 61800-9-2, and various functional safety standards like EN 61800-5-2 and EN ISO 13849-1. Their products meet rigorous industrial automation requirements for electrical equipment, environmental protection, and safety-related control systems.

What industries and applications are Dart Controls products used for?

Dart Controls products are used across multiple industrial sectors, with key applications including conveyors, pizza oven equipment, door closing mechanisms, and controls for fractional DC motors, brushless DC gear motors, and low voltage DC motors. Their SCR drives and motor controls serve OEMs, automation integrators, end users, and control specialists in industries requiring precise DC motor speed and motion control.

What technical support does Dart Controls offer?

Dart Controls offers comprehensive technical support through their direct phone line at (317) 873-5211. Their support includes personalized customer service, technical consultation, and assistance with product selection and application. As a 'Total Solutions Provider', they are committed to delivering second-to-none support and assistance, with a focus on helping customers find the right variable speed motor control solutions for their specific needs.

What are the main product lines offered by Dart Controls?

Dart Controls offers a comprehensive range of motor control products including AC Variable Frequency Drives (EZ VFD Series), AC Triac Variable Voltage Supplies, Digital Speed Pots, Analog SCR Drives (multiple series including 150, 125, 15, 130, 253, and 530 Series), Digital SCR Drives, Commutrol Brushless DC Drives, Low Voltage DC PWM Drives, and Speed Sensors. Their product lines are designed to provide flexible motor control solutions for various industrial applications, with options ranging from chassis to NEMA 4X enclosed configurations.

What are the key features of Dart Controls products?

Dart Controls offers a comprehensive range of innovative motor control products featuring advanced digital and analog SCR drives, digital speed potentiometers, and specialized drive solutions. Key features include flexible product configurations like the 150 Series SCR drive with multiple wiring terminations, fusing options, and IP66/NEMA4X enclosures, as well as unique digital drives like the MicroDrive with integrated programmable displays, closed-loop control, and multiple operational modes for diverse industrial applications.

How are Dart Controls products typically installed?

Dart Controls products are typically installed using panel-mount or standalone enclosed configurations, with flexible mounting options to suit various industrial applications. Most product lines like the EZ VFD, Digital SCR Drives, and Analog SCR Drives offer both open chassis and NEMA 4X enclosed models, allowing for easy integration into control panels or direct machine mounting. Installation typically involves connecting power inputs, motor outputs, and optional control signals like voltage followers or serial communication interfaces.

What communication protocols do Dart Controls products support?

Dart Controls supports multiple communication protocols, with Modbus RTU serial interface being a key offering for the 150 Series. Their products are designed to interface with PLCs, microcontrollers, computers, and HMIs through traditional analog signals and increasingly through serial network communication. While specific protocol support may vary by product line, Dart Controls demonstrates flexibility in communication integration for industrial automation applications.

What environmental ratings do Dart Controls products have?

Dart Controls offers multiple environmental ratings across their product lines, primarily NEMA 1, 2, 3R, 4, and 4X enclosure types. Most standard models like DS20, DS30, DR30, and DR50 come standard with NEMA 3R protection, with optional NEMA 4X upgrades available. Specific product lines feature different ratings, ensuring protection against dust, water, and corrosive environments for both indoor and outdoor applications.

What accessories are available for Dart Controls products?

Dart Controls offers several key accessories for their products, including speed sensors, LED support, and switch options. The PU Series speed sensors are particularly notable, with indoor (PU-E) and outdoor/wash down (PU-R) models available. Additional sensor options include the CF Series (hall-effect motor C-face mount) and OPU (optical) sensors. Some product lines also feature accessories like a -29 covered mounted FWD/Off/REV switch, LED chassis support, and various mounting configurations including open chassis (C) and NEMA 4X enclosed (E) options.