
[1] 24V supply voltage, green
[2] 15V control voltage, green
[11] Conditioned command signal
[13] Solenoid current
[12] Common ground
Monitor points Y
[3] Solenoid output enabled, yellow
[4] Solenoid output overload, red
[5] Current output to solenoid, yellow
[6] Set minimum
[9] Ramp setting
LEDs
Potentiometers
[7] Gain
t
t
t
24V 15V
max.
YØ 2 (0.0787 dia.) sockets
Front Panel
C.1
Type EEA-PAM-513-A; 14 Design
For KCG-3, 10 Series Proportional Pressure Control Valves
General Description
The power amplifier has five voltage
inputs (one inverting) and a current input
for 0-20 mA. The “set minimum” and
“gain” adjustments allow the amplifier to
be easily tuned to the proportional
pressure control valve. The ramp
potentiometer on the front panel
simultaneously adjusts the output
acceleration and deceleration. The ramp
function is normally enabled; it can be
permanently disabled by an external
wire link, or selectively enabled/disabled
using a remotely located switch.
Monitor points on the front panel allow
measurement of the conditioned
command input signal (after set
minimum, gain and ramp functions) and
of the solenoid current. The latter is
scaled to give 1 volt per ampere.
Features
FUser-friendly front panel with all the
necessary adjustments, LEDs and
monitor points
FElectronic overload protection with
automatic reset
FPulse width modulation for high
efficiency
FRamp function generator for control of
pressure increase and decrease rates
F24V DC power supply
FEither current or voltage input signals
FStandard input and output signals
New 14-design Features
FWider supply voltage range plus
increased tolerance to ripple
FLow supply voltage protection
FAdditional monitor points on edge
connector
Gain re-positioned in circuitry to give:
FRamp setting unaffected by gain
adjustment
FConstant trigger voltage for deadband
compensation
Warning: Electromagnetic Compatibility (EMC)
The European Community directives for electromagnetic comptibility (EMC) do not apply to this product
GB-2137C
Vickers®
Valves
Power Amplifier