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DC drives provide variable speed control for DC motors, ideal for applications requiring low speed control, torque and power. Speed adjustment is simple, typically using a potentiometer or analog input signal. IronHorse DC drives are available with either DC or AC input voltage input, and in open frame or NEMA 4/12 or 4X enclosed versions.
DC Drives
Category Selection
IronHorse® GSD Series DC Drives / DC Motor Controllers
- Input Voltages:
12 / 24 / 36 / 48 VDC
12/24 VAC, 24/36 VAC,115/230 VAC, 120/240 VAC - Output Voltages: 12 / 24 / 36 / 48 / 90 / 180 VDC
- Output Current: up to 20A
- Available in Open Frame and NEMA 4/12 or 4X Enclosed Versions
GSD Series DC Drives Overview and Selection Guide
Low Voltage (< 50V) DC Drives
Open Frame: GSD1, GSD3, GSD4 Series
Enclosed: GSD1, GSD3 Series
High Voltage (> 50V) DC Drives
Open Frame / Reversing: GSD3, GSD4, GSD4A, GSD5, GSD6, GSD7 Series
Enclosed: GSD3, GSD4, GSD5, GSD8 Series
DC Drives Accessories
Potentiometer Kit, Accel/Decel Adjustment Card, Signal Input Cards, Manual Reverse Switch, Heatsink, Digital Potentiometer
GSD1 Series DC Drives
1/50 - 1 HP @ 12-48 VDC input
IronHorse GSD1 series DC drives are high-performance Pulse-Width- Modulated (PWM) controllers for 12 to 48 volt equipment providing smooth control with high-efficiency operation.
- Available in open-frame and NEMA 4X enclosed styles
- Provides smooth variable speed capability for mobile equipment
- Automatic compensation holds motor speed if load varies or battery voltage declines
- Available in 10, 15 and 20A versions
- Jumper selectable 12, 24, 36 or 48V operating voltage
- Inhibit terminal permits optional start/stop without breaking battery / power line
- Adjustable max speed, min speed, current limit, I.R. compensation, and acceleration
- Speed adjustment using 5k Ohm speed pot or optional 0-10 VDC analog input
GSD1 Series DC drives start at
$181.00
(GSD1-48-10C)
GSD3 Series DC Drives
1/50 - 1/12 HP @ 24-36 VAC; 1/50 - 2/3 HP @ 120-240 VAC input
IronHorse GSD3 series DC drives are general-purpose, economical variable speed controllers for small DC and universal motor applications, featuring DC output current rating of 2 Amps, adjustable trim pot settings, and quick-connect terminal pins.
- DC motor speed control
- Dual input voltage models of 12-24 VAC or 120-240 VAC
- Full-wave bridge power supply
- Adjustable minimum speed, maximum speed, IR compensation
- Fixed acceleration (0.5 seconds)
- 25:1 speed range, 1% speed regulation
- Available in open-frame and NEMA 4 enclosed styles
- 5k Ohm speed pot with leads, knob and dial included
GSD3 Series DC drives start at
$75.00
(GSD3-240-2CL)
GSD4 Series DC Drives
1/50 - 1/6 HP @ 24-36 VAC; 1/50 - 2 HP @ 120-240 VAC input
IronHorse GSD4(A) series DC drives provide cost efficient, reliable control for permanent magnet, shunt wound, and universal motors. Installation and field adjustments are simplified using a barrier type terminal strip and large, easily adjustable trim pots to adjust horsepower ranges.
- Available in open-frame and NEMA 4X enclosed styles
- Dual input voltage 120-240 VAC or 24-36 VAC, 50/60Hz
- Full-wave bridge supply
- Adjustable horsepower settings, min and max speed, IR compensation, current limit
- Adjustable acceleration and deceleration (enclosed models and GSD4A)
- 50:1 speed range
- 1% speed regulation with armature voltage feedback (+/- 1/2% with tach feedback)
- 5k ohm speed potentiometer with leads, dial and knob included
- Voltage following or DC tachometer follower by supplying ungrounded analog input
- DC tachometer feedback
- Inhibit circuit permits start and stop without breaking AC lines
- Adjustable Accel and Decel trim pots (GSD4A)
- Optional Modbus RTU communications module (GSD4A)
GSD4 Series DC drives start at
$106.00
(GSD4-240-1C)
GSD5 Series DC Drives
1/8 - 2 HP @ 120-240 VAC input
IronHorse GSD5 series DC drives offer superb flexibility, reliability, and value. A general purpose, economical line of drives rated to 2 horsepower, it provides the ultimate in standard features and versatility.
- Available in open frame and NEMA 4/12 rated enclosed styles
- Dual input voltage - 120-240 VAC, 50/60Hz
- Packaged bridge supply (full wave)
- Adjustable horsepower settings, min and max speed, IR compensation, current limit
- adjustable linear acceleration
- 50:1 speed range
- 1% speed regulation with armature voltage feedback (+/- 1/2% with tach feedback)
- 5k ohm speed potentiometer with leads, dial and knob included
- Voltage following or DC tachometer follower by supplying ungrounded analog input
- DC tachometer feedback
- Inhibit circuit permits start and stop without breaking AC lines
GSD5 Series DC drives start at
$162.00
(GSD5-240-10C)
GSD6 Series DC Drive
1/8 - 3 HP @ 120-240 VAC input
The reliable, versatile, and economical GSD6 series is the most fully-featured IronHorse analog DC drive. It provides many standard features typically offered as options by other DC drives manufacturers.
- Open frame style
- Dual input voltage - 120-240 VAC, 50/60Hz
- Packaged bridge supply (full wave)
- Adjustable horsepower settings, min and max speed, IR compensation, current limit
- adjustable linear acceleration and deceleration
- 50:1 speed range
- 1% speed regulation with armature voltage feedback (+/- 1/2% with tach feedback)
- 5k ohm speed potentiometer with leads, dial and knob included
- Voltage following or DC tachometer follower by supplying ungrounded analog input
- DC tachometer feedback (jumper selectable)
- Inhibit circuit permits start and stop without breaking AC lines
- +12 VDC, 12mA power supply, user accessible
GSD6 Series DC drives start at
$408.00
(GSD6-240-15C)
GSD7 Series DC Drives
1/50 - 1 HP @ 120 VAC input; 1/25 - 2 HP @ 240 VAC input
Instant reversing, quick stopping, rapid cycling ... The IronHorse GSD7 series DC drives outperform other dynamic braking and reversing drives by utilizing unique zero-speed detect and dynamic braking circuits. In the event of a power loss or emergency stop condition, the GSD7 Series DC drives will drop into a dynamic brake condition.
- Open frame style
- Full-wave bridge supply
- Adjustable min and max speed, IR compensation, current limit
- Fixed acceleration (0.5 sec)
- Line voltage compensation
- 50:1 speed range
- 1% speed regulation with armature voltage feedback
- Duty cycles of 3 or 30 cycles per minute depending on model
- 5k ohm speed potentiometer with leads, dial and knob included
- Onboard dynamic brake resistor
- Automatic dynamic braking on power loss
- Shunt field supply provided
GSD7 Series DC drives start at
$247.00
(GSD7-120-1CR3)
GSD8 Series DC Drives
1/2 - 1 HP @ 120 VAC input; 1 - 2 HP @ 240 VAC input
The GSD8 series DC drives are compact, microprocessor-based motor controllers capable of factory or field configurations for a variety of industrial applications. GSD8 DC drives make use of either a pulse accumulation algorithm (GDS8-240-5C) or a velocity PID algorithm (all other GSD8 drives) that can be easily configured for operation as a speed controller, time-based process controller, or follower drive in a master-follower application.
- Microprocessor-based design
- Digital closed-loop algorithm
- Non-volatile memory storage
- Factory or field programmable
- Adjustable parameters
- Programmable alarm output
- Power supply accepts 85-265 VAC at 50-60 Hz without switches or jumpers
- Self-contained 5V power supply for external sensor
- Large 4-digit 1/2 inch LED display
- European terminal block
- Standard 1/8 or 1/4 DIN panel mounting
- Meets NEMA 4X standards when used with NEMA 4X enclosures
GSD8 Series DC drives start at
$421.00
(GSD8-240-5C)
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