DRF

Description

The DRF is a compact, DIN-rail mounted controller for use with proportional solenoid valves. The DRF can be set to operate in open loop (current feedback) mode or closed loop (external feedback) mode. In open loop mode the controller provides current to a valve coil in proportion to an input signal. In closed loop mode the controller uses external feedback to maintain a velocity or pressure proportional to an input signal. The loop closure utilizes industry standard PID control algorithms. Bright LED indicators on the front of the unit provide an overview of the operating status. Setup is accomplished through a convenient hand held interface or a PC. Once configured, the settings are stored in permanent memory within the unit. The DRF enclosure features convenient DIN-rail mounting and removable terminal blocks.

Features

Easily configured using WhiteOak SAM software or our Hand Held Interface
Front panel indicators for Power, Output Current and System Faults
USB port for setup and monitoring
Standard 35mm DIN rail mounting
Removable terminals to simplify wiring and maintenance
Control input options include +/-10V and 4-20mA
Adjustable current limited output with short circuit protection
Selectable dither frequency up to 1000Hz
Reference voltage outputs for potentiometer/joystick controls
Multiple modes for single and dual coil, open or closed loop applications
Independently adjustable min and max settings for input and output
Adjustable ramp up and ramp down rates
Microprocessor controlled for consistent, reliable performance

Operating Specifications

Supply Voltage	9 to 32VDC
Supply Current	I_SOL + 50mA
Output Current	DRF-x06: 600mA MAX. DRF-x12: 1.2A MAX. DRF-x25: 2.5A MAX
Solenoid Resistance	2Ω MIN.
Reference Voltages	-10V, +10V @ 20mA
Dither Settings	30, 50, 75, 100, 125, 150, 175, 200, 225, 250, 275, 300, 1000 Hz
Analog Input Range	DRF-Vxx: -10V to 10V DRF-Axx: 0 to 20mA
Analog Input Impedance	DRF-Vxx: 38kΩ DRF-Axx: 250Ω
Analog Input Resolution	10 bits
Operating Temperature Range	-20º to 70º C
Enclosure	Polyamide
Dimensions	Inch: 0.69 W x 4.50 H x 4.30 D mm: 17.5 W x 114.5 H x 109.4 D

User's Manual

For detailed information about the DRF, download the User's Manual:
D-DRF-A.PDF

Part Numbers

The following part numbers are available in the DRC series:

DRF	ch	-in	out
	2	-	-	2 Input/Output Channels
	4	-	-	4 Input/Output Channels
		V	-	Voltage Input -10V to +10V
		A	-	Current Input 0 to 20mA
		C	-	CANopen*
		D	-	DeviceNet*
		J	-	J1939*
			06	600mA Output
			12	1.2A Output
			25	2.5A Output

Example: DRF4-V06 - 4 output channel, voltage input, 600mA outputs

*Future Product. Please contact us for more information.

Ordering Information

List Price:
DRF2-xxx - $415.00
DRF4-xxx - $575.00

To order products,

Email: orders@whiteoakcontrols.com

Fax: 877-469-9815
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