Home Vickers EEA-PAM-5**-A-12 Power Amplifiers EEA-PAM-571-A-12

EEA-PAM-571-A-12

Name: EEA-PAM-571-A-12
Brand: Vickers
Price: 465 USD
Availability: InStock
Rating: 4.5 (35 reviews)

Rated 4.5 (35 total ratings)

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EEA-PAM-571-A-12 Power Amplifier Card Series manufactured by Vickers.

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Product Description:

The business world is highly unpredictable and dynamic and those companies that survive are the ones that are future-focused and are able to manufacture products that are future proof and can solve problems even in the future. That is what the Vickers Company has committed itself to do. Through innovative practices and best engineering techniques, the company has managed to make power amplifiers, amplifier boards and cards that solve automation problems in diverse industries in an efficient and cost-effective manner.

Anyways, take a scenario where you get just half the benefits of your EEA-PAM-571-A-12 power amplifier because of lack of information. It would be a disservice and that wouldn’t be the manufacturer’s joy. That is why we offer you pertinent information surrounding the EEA-PAM-571-A-12.

This power amplifier is not only powerful but also exceptionally durable. That is why you may realize that it is an old model that has been pre-owned. However, we can assure you that even if you purchase one that is used, its functionality is unmatched and uncompromised. You may be a little apprehensive but you should not. The reason is, all our pre-owned models are tested and approved before they can be resold. Our technicians uphold the highest industry practices during the process.

You may want to get further information regarding the functioning of the EEA-PAM-571-A-12 power amplifier. Well, it operates optimally in a voltage between 15V and 24V. It works through raising the magnitude of a given power signal at the input. It directly amplifies various loads to give a high magnitude output. To further enhance performance, you can use the current/voltage pre-amplifiers before feeding the signal to the power amplifier. In essence, the EEA-PAM-571-A-12 power amplifier should be at the end of the amplifiers chain.

Specs
Revisions
Common Troubleshooting Steps
Product Comparison
Similar Ordering Codes
Common Error Codes

Amplifier Input Current at 0V Command Signal
1.7 A

Max. Solenoid Current
3.2 A

Maximum Humidity Allowable
95%

Operating Temperature Range
0 to +50 degree centigrade

Overload detection
Automatic reset

Power Supply Nominal Voltage
24V DC x 50W

Protection
Reverse-polarity

Ramp Active Indicator Output Resistance
10-kilo ohms

Series
EEA-PAM-5**-A-32

Signal Zero Indicator Output Resistance
50 ohms

EEA PAM 571 A 12
EEA-PAM-571-A12
EEA-PAM-57l-A-12
EEAPAM571A12

Symptom or LED pattern (front panel)	Probable cause	Quick troubleshooting step
Green “24 V” LED off	No / low 24 V DC (< 20 V) or reversed polarity	Verify cabinet PSU voltage, fuse and wiring polarity; restore 24 V then repower the card.
Green “15 V” LED off (24 V LED on)	On-board ±15 V logic rail missing	Measure ±15 V at test jacks; if absent, replace the regulator stage or the whole card.
Yellow “Enable” LED dark even though PLC sends > +10 V to pin z24	Drive-enable line actually < +6 V (broken PLC output / bad field wire)	Trace & repair z24 wiring, restore proper voltage, reseat the card to reset the latch.
Red “Overload” LED lit	Solenoid current > 2.5 A (shorted coil or wrong valve type)	Measure coil resistance, inspect cable for shorts, fit correct coil and cycle 24 V.
Red “Watchdog” LED flashing	Internal micro-controller fault or noisy 24 V line	Power-cycle the card; if watchdog trips again, shield supply wiring or replace card.
Red “LVDT Fail” LED	Feedback transducer open-circuit or out-of-range	Check ±15 V sensor supply, inspect 6-pin LVDT cable, re-zero the servo loop.
Valve overshoots, quad-ramp pots ineffective	Quadrant-ramp disable link b12–b20 left closed	Remove jumper or route it through a remote switch to re-enable quad ramps.
Command present but no valve motion	Set-minimum or Gain* pots fully CCW*	Turn both pots clockwise until monitor jack MP1 shows ≈ ±0.5 V; test valve travel.
PID integrator pegged (MP6 stuck at max)	I-gain too high or sensor polarity reversed	Reduce I-gain trim, swap LVDT phase leads if needed, power-cycle to clear wind-up.
Card resets when cabinet temp > 50 °C	Internal over-temperature shutdown	Improve panel ventilation, keep ambient < 45 °C, allow cool-down before restart.

Model	Intended Valve Family	Command Inputs	Ramp Generator	Diagnostics / LEDs	Max Coil Current (A)
EEA-PAM-571-A-12	KFDG5V high-dynamic servo ±10 V + ±15 V ref	Four-quadrant (acc/dec each direction)	24 V, 15 V, Enable, Overload, LVDT Fail, Watchdog	2.5
EEA-PAM-571-A-14	Same as above (newer revision)	±10 V + ±15 V ref	Four-quadrant	LVDT Fail, Overload, Watchdog, Temp	2.5
EEA-PAM-553-D-33	KSDG4V-3 servo spools	±10 V + sensor ref.	Quad-ramp (each quadrant)	24 V, 15 V, Enable, Overload, Dual LVDT Fail	2
EEA-PAM-561-A-14	KDG5V-5/7 spools with LVDT	±10 V	Dual independent ↑ / ↓ ramps	24 V, 15 V, Enable, Overload, LVDT Fail	1.8
EEA-PAM-535-D-33	KF*G4V-5 proportional flow	0-10 V × 5 \| 0-20 mA × 1	Single adjustable (20 ms–3 s)	24 V, 15 V, Enable, Overload	1.6
EEA-PAM-525-A-14	KDG4V-5 high-flow directional	0-10 V × 5 \| 0-20 mA × 1	Single adjustable	24 V, 15 V, Enable, Overload	1.6

Indicator / Condition	What it Means
Green “24 V” LED off	No or low 24 V DC supply (< 20 V) or polarity reversed
Green “15 V” LED off (24 V LED on)	On-board ±15 V logic rail missing
Yellow “Enable” LED dark though PLC drives > +10 V to pin z24	Enable line actually < +6 V (broken PLC output / field wiring)
Red “Overload” LED lit	Coil current > 2.5 A (shorted coil or wrong valve)
Red “Watchdog” LED flashing	Micro-controller fault or noisy 24 V
Red “LVDT Fail” LED	Feedback transducer open-circuit / out-of-range
Ramp pots ineffective / valve jerks	Quadrant-ramp bypass link b12–b20 left closed
Command present but no valve motion	Set-minimum or Gain* pots fully CCW*
PID integrator pegged (MP6 at limit)	I-gain too high or LVDT polarity reversed
All LEDs extinguish > 50 °C	Internal over-temperature shutdown

Frequently Asked Questions about EEA-PAM-571-A-12:

Q: Can the amplifier be easily tuned to the proportional control valve?

A: Yes, the variety of settings allows the amplifier to be easily tuned to the proportional control valve. This ensures optimal performance and responsiveness when paired.

Q: How many voltage and current inputs does the EEA-PAM-571-A-12 have?

A: The EEA-PAM-571-A-12 Power Amplifier has five voltage inputs and one current input. This allows for diverse signal processing and flexibility in interfacing with external devices.

Q: What is the Power Supply Nominal Voltage for the EEA-PAM-571-A-12?

A: The Power Amplifier has a nominal voltage of 24 V DC x 50 W. This provides stable and efficient power to the amplifier, ensuring smooth operations.

Q: For which Proportional Valves is the EEA-PAM-571-A-12 Amplifier Card suitable?

A: The Amplifier Card is specifically for Proportional Valve KHDG5V-5/7/8/10 with a zero lap spool. This compatibility ensures that the valve and amplifier can operate seamlessly together.

Q: Does the EEA-PAM-571-A-12 feature any protection mechanisms?

A: Yes, it includes Reverse-polarity Protection, Automatic reset Overload detection, and shuts down at <18V DC. These safeguards ensure a longer lifespan and protect the device from potential damage.

Internal Product Review

‘‘The EEA-PAM-571-A-12 model has advanced features like reverse-polarity protection and overload detection. With five voltage inputs and a 24V DC x 50W nominal voltage, it's ideal for proportional valves, ensuring longevity and reliability.’’