★★★★★
4.94 based on 219 reviews

🙶 Easy to navigate website and quick responses from support. Additionally, pretty fast shipping. Our mainte... 🙷

EEA-PAM-581-D-33 Vickers

Available, Ships in 1-2 weeks
No Hidden Fees Rush or Credit Card
No Tariffs On US Orders

Internal Product Review

The EEA-PAM-581-D-33 from Vickers is a power amplifier designed for precise electrohydraulic control, featuring a supply voltage of 24 VDC and a maximum solenoid current of 3.2 A. Its voltage command input impedance of 47 kΩ and deadband compensation factory setting of 10% contribute to stable and responsive performance. This model is well-suited for demanding automation applications requiring reliable signal processing.

Sell Part
Have a part to sell?
Warranty
Wake Industrial Warranty

Quote Request Form:

To contact sales for pricing and lead time:

Payment Methods

Visa
Mastercard
AmEx
Wire Transfer

Shipping Methods

DHL
UPS
FedEx
Freight

Our Credentials

Cary Chamber
DUNS Registered
SAM Registered
BBB Accredited

Product Description:

The EEA-PAM-581-D-33 is a plug-in power amplifier card from Vickers in the EEA-PAM Power Amplifiers series. The board conditions command and feedback signals so a proportional solenoid valve receives the correct current for precise hydraulic flow or pressure control in automated machinery.

It draws logic and drive power from a 24 VDC supply, and the internal reference generator provides +10 VDC so external controllers can scale command voltages without an additional source. When a current command signal is used, the board presents 100 Ω of input impedance, minimizing burden on PLC analog outputs, while the feed-forward input is higher at 6 kΩ, promoting sensitivity to dynamic changes. The output stage can deliver up to 3.2 A of solenoid current, allowing operation of high-force proportional valves. At zero-volt command the amplifier still supplies 1.7 A, a residual bias that helps overcome mechanical friction. A factory deadband compensation of 10 % is preset to linearize the valve around null.

System integration is through a DIN 41612 F48 male connector, which routes command, feedback, and power lines to the cabinet backplane. A dedicated +15 VDC LVDT supply supports position feedback transducers, and sensor current loops encounter 100 Ω of input impedance, while voltage feedback paths face 1 MΩ, preventing loading errors. The voltage command path is buffered by 47 kΩ, so noise picked up on long cables is attenuated. For ramped set-point changes the generator input also sees 10 kΩ, producing predictable RC time constants when external capacitors are added. The reference source can source up to 5 mA, adequate for multiple parallel loads. A 10 kΩ monitor point permits direct oscilloscope connection without affecting the control loop. These remaining attributes complete the card’s signal conditioning and diagnostic functions.

Current Cmd Input Impedance
100 Ω
Deadband Comp Factory Setting
10%
Edge Connector
DIN 41612 F48 Male
Feed-Forward Input Impedance
6 kΩ
Input Current At 0v Cmd
1.7 A
Lvdt Supply Output
+15 VDC
Max Solenoid Current
3.2 A
Monitor Point Impedance
10 kΩ
Ramp Gen Input Impedance
10 kΩ
Reference Voltage (+)
+10 VDC
Reference Voltage Load Current
5 mA
Sensor Current Input Impedance
100 Ω
Sensor Voltage Input Impedance
1 MΩ
Supply Voltage
24 VDC
Voltage Cmd Input Impedance
47 kΩ

Frequently Asked Questions about EEA-PAM-581-D-33:

Q: What supply voltage does the EEA-PAM-581-D-33 power amplifier require?

A: The EEA-PAM-581-D-33 operates with a 24 VDC supply voltage.

Q: What is the maximum solenoid current supported by the EEA-PAM-581-D-33?

A: Maximum solenoid current supported by this amplifier is 3.2 A.

Q: What is the LVDT supply output voltage on the EEA-PAM-581-D-33?

A: The EEA-PAM-581-D-33 provides a +15 VDC output for LVDT supply.

Q: What type of edge connector does the EEA-PAM-581-D-33 utilize?

A: This amplifier uses a DIN 41612 F48 male edge connector for electrical connections.

Q: What is the factory setting for deadband compensation on the EEA-PAM-581-D-33?

A: The deadband compensation is set at 10% from the factory for the EEA-PAM-581-D-33.

  • eea-pam-581-d-33
  • EEAPAM581D33
  • eeapam581d33
  • EEA-PAM-S81-D-33
  • EEA-PAM-5B1-D-33
  • EEA-PAM-58I-D-33
  • EEA-PAM-SBI-D-33
  • EEAPAM-581-D-33
  • EEA-PAM581-D-33
  • EEAPAM581-D-33
  • EEA-PAM-581D-33
  • EEAPAM-581D-33
  • EEA-PAM581D-33
  • EEAPAM581D-33
  • EEA-PAM-581-D33
  • EEAPAM-581-D33
  • EEA-PAM581-D33
  • EEAPAM581-D33
  • EEA-PAM-581D33
  • EEAPAM-581D33
Symptom / Front-panel LED or Test-Jack Reading Probable Cause Practical Troubleshooting Step
24 V LED dark Card is not powered (supply < 20 V DC, blown fuse, reversed polarity) Verify cabinet power-supply output and fuse, correct polarity, then re-apply 24 V.
15 V LED dark while 24 V LED is on On-board ±15 V logic rail missing (regulator failure) Measure ±15 V at test jacks; if absent, replace the regulator section or the whole card.
Enable LED off even though PLC drives > +10 V to pin z24 Enable line actually < +6 V (open PLC output or wiring break) Repair the z24 circuit, restore ≥ +10 V, reseat the card to reset the latch.
Overload LED lit (red) Coil current > 2.5 A (shorted coil or wrong valve fitted) Measure coil resistance, inspect cable for shorts, fit the correct coil; LED clears automatically.
LVDT 1 Fail LED on First feedback transducer open-circuit or out-of-range Check ±15 V sensor supply, repair the 6-pin LVDT cable, re-zero the loop.
LVDT 2 Fail LED on Second feedback channel fault (card supports dual feedback) Repeat Step 5 for the second sensor; both fail LEDs must be off before operation.
Watch-Dog LED flashing Internal micro-controller reset (noise on 24 V or firmware fault) Power-cycle the card; if the LED returns, add 24 V filtering or replace the card.
Ramp pots have no effect / valve jerks Quadrant-ramp bypass link b12–b20 left closed Remove the jumper or route it through a remote switch to re-enable the 4-quadrant ramps.
Command present but no valve motion Set-minimum or Gain pots fully CCW (zero output) Turn both pots clockwise until monitor jack MP1 shows ±0.5 V or more; retest valve stroke.
Card drops out whenever 24 V < 19 V or cabinet > 50 °C Low-voltage or over-temperature protection has tripped Upgrade the PSU or wiring, improve cabinet ventilation, allow board to cool < 45 °C, then restart.
Model Intended Valve Family Command Inputs Ramp Generator Diagnostics / LEDs Max Coil Current (A)
EEA-PAM-581-D-33 Double-feedback servo (two LVDTs) ±10 V + sensor ref. Four-quadrant (acc/dec each dir.) 24 V, 15 V, Enable, Overload, LVDT 1 Fail, LVDT 2 Fail, Watch-Dog 2.5
EEA-PAM-581-A-32 Double-feedback servo ±10 V + ±15 V ref. Four-quadrant 24 V, 15 V, Enable, Overload, Dual LVDT Fail, Watch-Dog 2.5
EEA-PAM-571-A-32 Single-LVDT high-dynamic servo ±10 V + ±15 V ref. Four-quadrant LVDT Fail, Overload, Watch-Dog 2.5
EEA-PAM-553-D-33 Servo spool (dual LVDT, lower current) ±10 V + sensor ref. Quad-ramp (each quadrant) 24 V, 15 V, Enable, Overload, Dual LVDT Fail 2
EEA-PAM-561-A-30 Spools with single LVDT ±10 V Dual independent ↑ / ↓ ramps 24 V, 15 V, Enable, Overload, LVDT Fail 1.8
EEA-PAM-525-A-30 KDG4V-5 high-flow proportional spool 0–10 V ×5 | 0–20 mA ×1 Single adjustable ramp 24 V, 15 V, Enable, Overload 1.6
Indicator / Condition What it means
24 V LED off Card sees < 20 V or reversed polarity
15 V LED off (24 V LED on) Internal ±15 V rail missing
Enable LED dark though PLC drives > +10 V to z24 Enable actually < +6 V (open PLC contact / broken wire)
Overload LED lit Coil current > 2.5 A (shorted coil or wrong valve)
LVDT 1 Fail LED First feedback sensor open or out-of-range
LVDT 2 Fail LED Second feedback channel fault
Watch-Dog LED flashing Controller reset by noise / firmware fault
Ramp pots inert / valve jerks Quadrant-ramp bypass link b12–b20 closed
Command present but no valve motion Set-minimum or Gain pots fully CCW
Card trips when 24 V < 19 V or panel > 50 °C Low-voltage or over-temperature protection
Motion Industries logo
3M logo
IBM logo
Gexpro Logo
Caterpillar logo
NASA logo
Ford logo
Vallen logo