021-DRF Rev B
DRC User Manual
19
Copyright © Enovation Controls – 2018
DRF Valve Controller
Application Examples
Open Loop Double Solenoid Control (DRF2-Vxx)
The DRF can drive a dual-coil valve with a joystick or
potentiometer of 10k
Ω
.
If enable switch is not used, set channel 1 to be Mode 1,
channel 2 to be Mode 3.
If enable switch is used, set channel 1 to be Mode 2,
channel 2 to be Mode 4.
The minimum and maximum input parameters for the two
channels should not be overlap.
Set the dither and output settings according to the valve
specifications.
Schematic
FUSE
+V Power Input
9 - 32VDC
+V = Enabled
PWR
J1-1
DRF2
Electronic Valve
Controller
Enable
J1-3
GND
J1-2
-
10V Ref. Out
J4-1
+10VDC @ 20mA
0 to 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
4-12mA
Ch. 2 I/P
J5-3
Prop. PWM (Sourcing)
Sig GND
J2-2
Ch. 1 Out
J2-1
Ch. 2 Out
J2-3
Prop. PWM (Sourcing)
0 to -10VDC
12-20mA
Example Settings
Input / Output Diagram
-10V
(Ch. #2)
600mA
5mA
600mA
5mA
Center (0V)
Ch.
#2
Current
Ch.
#1
Current
10V
(Ch. #1)
Command
Input
-0.2V
(Ch. #2)
0.2V
(Ch. #1)
Parameter
Value
C1 Mode
2 CUR 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
C2 Mode
4 IN1 USE ENBL
C2 Min input
-0.2 V
C2 Max input
-10.0 V
C2 Min output
5 mA
C2 Max output
600 mA
C2 Ramp up
1 S
C2 Ramp down
1 S
Dither frequency
150 Hz.