Manual
021-DRC Rev A                           DRC User Manual                           16 
Copyright © High Country Tek, Inc.  2013 
DRC Valve Controller  
Application Examples 
Open Loop Single Solenoid Control (DRC1-Vxx) 
The DRC can drive a single solenoid with a joystick or 
potentiometer of . 
Mode  1  is  used  when  the  enable  switch  is  not  used. 
Mode 2 is used when the enable switch is used. 
The command input can be inverted. 
Set the dither and output settings according to the valve 
specifications. 
Example Settings 
Parameter 
Value 
C1 Mode 
2 IN1 USE ENBL 
C1 Min input 
0.2 V 
C1 Max input 
10.0 V 
C1 Min output 
5 mA 
C1 Max output 
600 mA 
C1 Ramp up 
1 S 
C1 Ramp down 
1 S 
Dither frequency 
150 Hz. 
Schematic 
FUSE
+V Power Input
 9 - 32VDC
+V = Enabled
PWR J1-1 
DRC1
Electronic Valve
Controller
Enable J1-3
GND J1-2
-10V Ref. Out J4-1
+10VDC @ 20mA
0-10VDC
+10V Ref. Out J4-3
Ch. 1 I/P J5-1
Sig GND J4-2
J5-2
VDC I/P
mA I/P
Supply Voltage
4-20mA
Ch. 2 I/P J5-3
Prop. PWM (Sourcing)
Sig GND J2-2
Ch. 2 Out J2-3
Ch. 1 Out J2-1
Input / Output Diagram 
Command 
Input
0.2V
10V
5mA
600mA
Output Current










