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DRF Valve Controller
DRF
Closed-loop and Open-loop
Proportional Valve Controller
Enovation Controls reserves the right to improve this product at any time and without notice. This manual may
contain mistakes and printing errors. The content is regularly checked and updated. Please check our website
or contact our customer support for latest version. Enovation Controls accepts NO liability for technical mistakes
or printing errors or their consequence.
1
021-DRF Rev B
DRC User Manual
Copyright © Enovation Controls – 2018
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Table of Contents
Related Manuals for HCT DRF2
Summary of Contents for HCT DRF2
- Page 1 DRF Valve Controller Closed-loop and Open-loop Proportional Valve Controller Enovation Controls reserves the right to improve this product at any time and without notice. This manual may contain mistakes and printing errors. The content is regularly checked and updated. Please check our website or contact our customer support for latest version.
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Page 2: Table Of Contents
Setup Procedure .............................. 12 Wiring ................................17 Order Information..............................18 Application Examples .............................. 19 Open Loop Double Solenoid Control (DRF2-Vxx) ................... 19 Double/Single/Single Solenoid Control (DRF4-Vxx) ..................20 Closed Loop Velocity Mode (DRF2-Vxx) ......................21 Revision Record ..............................21 021-DRF Rev B DRC User Manual Copyright ©... -
Page 3: Product Application Guidelines
DRF Valve Controller Cautions Changing setup values or operating modes while a machine is running may cause unintended machine movement. It could lead to possible injury or death. Any moving parts should be disabled prior to changing setup values or operating modes. -
Page 4: Drf Controllers
0 current. Once configured, the settings are permanently stored in the controller memory. DRF Features Easily configured using HCT Graphical User Interface (GUI) or HCT Hand Held Interface (HHI) LED indication of power, output current and fault status ... -
Page 5: Physical Description
DRF Valve Controller Physical Description There are PWR LED and OUTx LEDs. For DRF-4, there are 5 LEDs. The PWR LED is green when the applied voltage is within the operating range. OUTx LEDs indicate current output for a given channel. The LEDs are yellow and the brightness will vary with the output current. -
Page 6: Configuration
DRF Valve Controller Configuration The GUI has 4 buttons (ran from a PC): Lock, Unlock, Up, and Down. There are short-cut keys: ‘/’(lock), ‘*’(unlock), ‘+’(up), and ‘-‘(down). Use the up and down arrows to navigate through the parameter list. The display will show the next parameter in the list when pressed. - Page 7 DRF Valve Controller “Read settings from controller” displays a static table of values from non-volatile memory. The changes made to the settings by selecting “lock” are not updated in the table unless “read settings from controller” is selected again. To save the settings into a file for future use, click “read settings from controller” before clicking “save settings to file”.
- Page 8 DRF Valve Controller When uploading settings from a data file, the static table shows the settings from the data file, but they are not in the controller yet. Click “write settings to controller” before clicking “read settings from controller”. After this step, the static table will display the DRF settings from the data file.
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Page 9: Parameter List
DRF Valve Controller Parameter List The following table outlines the DRF parameters as well as the limits and units of measure for each parameter. Parameter Limits Units DRFx-xxx Version # C1 Mode See Mode Description Mode # C1 Proportional gain 0.0 to 100 C1 Integral gain 0.0 to 100... - Page 10 DRF Valve Controller DRFx-xxx - The title parameter is fixed. It displays the model number and the firmware version. Cx MODE - Four modes of operation. Mode Enable Channels comments 1 CUR NO ENBL Open loop, use its own input 2 CUR USE ENBL Open loop, use its own input 3 VEL NO ENBL...
- Page 11 DRF Valve Controller DEADBAND - Sets the error tolerance of the PID loop. The control will only respond to error greater than the Deadband parameter. For a velocity loop the output will remain at a fixed level. For a position loop both outputs will remain off.
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Page 12: Pid Algorithm
DRF Valve Controller PID Algorithm The controller uses a digital, velocity PID algorithm as shown: O(t) = O(t-1) + P*(e(t)-e(t-1)) + I*T*e(t) + D/T*(e(t) + e(t-2) – 2*e(t-1)) Where: O = output P = proportional gain term I = integral gain term D = derivative gain term e(t) = error at time t T = PID loop time... - Page 13 DRF Valve Controller DRF Closed-loop control: Place channel 1 in Mode 3 or 4, channel 2 in When the feedback (channel 2 input 5.5V) is mode 1 or 2. less than the command (channel 1 input 9.8V), DRF outputs 0.74A to Channel 1. When the feedback (channel 2 input 5.5V) is greater than the command (channel 1 input Channel 2 does not have an output.
- Page 14 DRF Valve Controller When the feedback (channel 2 input 5.5V) is When the feedback (channel 2 input 5.5V) is greater than the command (channel 1 input less than the command (channel 1 input 1.3V), DRF outputs 0A to Channel 1. 7.2V), DRF outputs 0.74A to Channel 1.
- Page 15 DRF Valve Controller Open-loop dual coil Mode: 0.5V to 9.5V drives the channel 1 output, -0.5 Channel 1 has an output of 0.22A because to -9.5V drives the channel 2 output. the input is 2.4V. Channel 1 has an output of 0.56A because the input is 5.5V.
- Page 16 DRF Valve Controller Channel 2 has an output of 0.34A because Channel 2 has an output of 0.64A because the input is -3.5V. the input is -6.4V. 021-DRF Rev B DRC User Manual Copyright © Enovation Controls – 2018...
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Page 17: Wiring
DRF Valve Controller Wiring Terminal functions are listed in the table below. Terminal Function J1-1 +V Supply J1-2 Supply Common J1-3 Enable Input J2-1 Output Ch. 1 J2-2 Common J2-3 Output Ch. 2 J3-1 Output Ch. 3 J3-2 Common J3-3 Output Ch. -
Page 18: Order Information
DRF Valve Controller Order Information The following is a break-down of the DRF part numbering system: D R F 4 - V 1 2 06 = 600mA max 12 = 1.2A max 25 = 2.5A max V = -10 to +10V input A = 0 to 20mA # = Number of channels (2 or 4) Required Communication Cables:... -
Page 19: Application Examples
DRF Valve Controller Example Settings Application Examples Parameter Value Open Loop Double Solenoid Control (DRF2-Vxx) C1 Mode 2 CUR USE ENBL The DRF can drive a dual-coil valve with a joystick or C1 Min input 0.2 V potentiometer of 10kΩ. -
Page 20: Double/Single/Single Solenoid Control (Drf4-Vxx)
DRF Valve Controller Example Settings Double/Single/Single Solenoid Control (DRF4-Vxx) Parameter Value The DRF drives a dual-coil valve with joystick input J5-1 and 2 C1 Mode 2 CUR USE ENBL single-coil valves with joystick input J6-1 and J6-3. C1 Min input 0.2 V Set the dither and output settings according to the valve C1 Max input... -
Page 21: Closed Loop Velocity Mode (Drf2-Vxx)
DRF Valve Controller Closed Loop Velocity Mode (DRF2-Vxx) Example Settings The DRF can drive a single solenoid valve in closed Parameter Value loop velocity mode. C1 Mode 4 VEL USE ENBL Set the input ranges to match the desired command C1 Min input 0.2 V... - Page 22 DRF Valve Controller High Country Tek by Enovation Controls 5311 S 122nd East Ave. Tulsa, OK 74146 Tel: +1 (918) 317-4100 sales@enovationcontrols.com www.enovationcontrols.com This data sheet may contain mistakes and printing errors. The information in this publication is regularly checked and corrections made in the next issue.
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