Front Panel
LED and symbol not on EEA-PAM-513/523/525 amplifiers.
Solenoid current for EEA-PAM-523/525-D models.
Ø2,0 mm (0.0787dia.) sockets.
In the case of EEA-PAM-523/525-D models one of these
relationships may not apply if two single solenoid valves are
connected.
Number and function of potentiometers [7], [8],
[7.2] vary according to model type as follows:
For models -513/541/553-
[1] 24V power supply input, green
[2] 15V control supply output, green
[12] MP1: Conditioned command signal
[14] MP2: LVDT (spool) position
[13] Common ground (0V)
Monitor points
[3] Drive (solenoid) enabled, yellow
[4] Overload, red
[6] Drive level to solenoid, yellow
[7] Deadband compensation, flow P to B
[9] Ramps enabled, yellow
[15] Mode switch
– TEST VALVE setting
– AUTO function setting
– TEST LOOP setting
24/15
P
B
A
[16] Test potentiometer
[17] PID-controller enabled, yellow
[19] Feedback = command signal, green
[21] Feed-forward signal scaling
[23] I-gain
[18] Integrator enabled, yellow
[20] Sensor failure, red
[22] P-gain
[24] D-gain
Potentiometers
LEDs
Potentiometers
[5] LVDT failure, red
[8] Deadband compensation, flow P to A
LED
Potentiometers
[10] Command ramp up
[11] Command ramp down
AUTO
TEST TEST
VALVE LOOP
0
–+
V
P
I
D
t
t
1
2
3
4
5
6
LEDs
[25] MP3: Command signal
[27] MP6: Integrator output
[26] MP5: PID-controller output
Monitor points
[28] MP4: Feedback signal
[7.2 ] O ffset
January 1996 GB-2474
EEA-PAM-5**-D-32 Series
General Description
The EEA-PAM-5**-D-32 Eurocards are
power amplifiers with integrated PID
modules. Each of these cards replaces
two conventional electronic cards.
Features and Benefits
Includes all features of “A” amplifiers
(except gain)
User configurable PID feed-forward,
closed-loop operation
Command input ramps
Analog feedback sensor interface
Automatic switch-over p/Q function
Built-in test feature
The design reduces the amount of
external wiring, saves space in the rack
enclosure and requires only one 24V
supply
The general purpose, integrated
module can be configured using DIL
switches (D1-D9) and potentiometers
for the following applications:
– Closed-loop pressure control using
either proportional pressure valves or
servo-performance proportional
valves
– Closed-loop velocity control
– Closed-loop position control
– p/Q control with internal or external
switch-over from Q to p
The DIL- switch and potentiometer
settings can easily be reconfigured on
different cards
This product has been designed and tested to meet specific standards outlined in the European Electromagnetic Compatibility
Directive (EMC) 89/336/EEC, amended by 91/263/EEC, 92/31/EEC and 93/68/EEC, article 5. For instructions on installation
requirements to achieve effective protection levels, see this leaflet and the Installation Wiring Practices for Vickers Electronic
Products leaflet 2468. Wiring practices relevant to this Directive are indicated by Electromagnetic Compatibility (EMC) .
Vickers®
Accessories
Power Amplifiers with PID Modules