High Country Tek Plug Top Driver Series - Manual (Page 2)

Electronic Controller Solutions for the Fluid Power Industry
Voltage Command Connection Details:
Current Command Connection Details:
+V Supply
0VDC
10K
Potentiometer
BLUE
GREEN
YELLOW
RED
+VRef
+V Supply
0VDC
+I -I
BLUE
GREEN
YELLOW
RED
E xternal Signal
4-20mA
0VDC
0V
BLUE
GREEN YELLOW
RED
+V
External Signal
0 to +10VDC
+VRef. NOT USED
Terminate Safely.
+V Supply
 PTD voltage input (GREEN wire ) is internally pulled to
0V to prevent spurious operation with no command
signal connected.
 Ramps DO NOT work if power is dis-connected.
 Use 0-10V maximum command signal input.
 Ensure external command signal source is connected to
same GND (0V) as the PTD power supply for correct
operation.
 Ensure +VRef is terminated safely to avoid shorts.
 Always use screened wires wherever possible.
 PTD voltage input (GREEN wire ) is internally pulled to
0V to prevent spurious operation with no command
signal connected.
 Ramps DO NOT work if power is dis-connected.
 Use internal reference voltage +Vref for local control with
potentiometer or joystick e.t.c.
 HCT recommends 10KΩ potentiometers / joysticks.
 +Vref is protected and current limited to ~5mA.
 12VDC PTD’s have +8VRef output.
 24VDC PTD’s have +15VRef output.
 Always use screened wires wherever possible.
 PTD current input uses a 250Ω shunt resistor connected
to GND (0V) internally
 Yellow wire (-ImA) is internally connected to GND (0v)
supply
 4-20mA command is connected between +I and –I
 Ramps DO NOT work if power is dis-connected.
 Use 4-20mA maximum command signal input.
 Always use screened wires wherever possible.
FUSES:
For clarity, no fuses are shown here.
HCT strongly recommends that the user installs a fuse
holder that if fit for purpose in the application and uses a
correctly rated fuse for each plug top driver to ensure
that damage does not occur under short circuit or wiring
circumstances.
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