Wake Industrial LLC is not an authorized distributor of this
product.
Rated 4.6 (83 total
ratings)
No Tariffs On US Orders
Rated 4.6 (83 total
ratings)
Straightforward Pricing: No Rush Fees, No Credit Card
Fees
In-Stock, Ships 1-2 Days
Preparing your secure checkout page...
The Vickers EEA-PAM-525-A-30 is part of the EEA-PAM Power Amplifiers series and operates with a nominal supply voltage of 24 VDC while requiring 40 W of power. It provides a control supply output current of 50 mA at ±15 V and features reverse-polarity protection along with undervoltage shutdown at 18 VDC. The unit also offers a monitor scaling of 1 V/A and maintain a reference output voltage of ±10 V within 1% of accuracy.
The EEA-PAM-525-A-30 is a power amplifier module manufactured by Vickers as part of the EEA-PAM Power Amplifiers series. In an automation rack it converts a regulated DC supply into control, reference, and monitor signals required by electro-hydraulic or electro-mechanical actuators. By combining fixed internal references with external enable logic, it supports closed-loop tasks that need dependable current or voltage drive together with diagnostic feedback.
The board operates from a nominal input of 24 VDC and draws up to 40 W, so cabinet power planners must reserve that budget on the 24 volt rail. It tolerates a maximum supply ripple of ±10%; exceeding that range increases output error and can trigger the undervoltage circuit, which disconnects the load at 18 VDC. Reverse wiring on the supply connector will not damage the card because the line is Protected against polarity reversal. Internal regulators generate the dual control supply, keep ripple below 50 mV peak-to-peak, and limit temperature drift to less than 1 mV / °C for stable operation across the cabinet envelope.
The control supply rails deliver ±15 V at up to 50 mA to external signal conditioners, while the reference output provides ±10 V (±1 %) and 5 mA with less than 20 mV ripple for precise command generation. An enable input with a resistance of 22 kΩ accepts logic from PLC cards; when that terminal rises above 9.8 V, the amplifier engages its outputs. For diagnostics, the monitor pin presents a 10 kΩ impedance and scales line current at 1 V⁄A so controllers can read real-time load demand without additional shunt hardware.
Enable LED dark although PLC sends > +10 V to pin z24
Enable line actually < +6 V (broken PLC output or field wiring)
Overload LED lit
Solenoid current > 1.6 A (shorted coil or wrong valve)
Command present but no valve response
Set-minimum or Gain pots are fully CCW (zero output)
Ramp pots ineffective / valve jerks
Ramp-bypass jumper b12–b20 left closed
Red LED flashes when command crosses 0 V
Coils wired for opposite polarity
Watchdog LED flashing (if fitted)
Micro-controller reset due to noise or firmware fault
Card resets whenever 24 V < 19 V
Low-voltage latch triggered
All LEDs extinguish at panel temps > 50 °C
Internal over-temperature shutdown
Internal Product Review
‘‘The EEA-PAM-525-A-30 from Vickers is a power amplifier designed for precision control in demanding hydraulic systems, offering a nominal supply voltage of 24 VDC and a power requirement of 40 W. It features reverse-polarity protection and undervoltage shutdown at 18 VDC, ensuring reliable performance and system safety. With less than 1 mV/°C temperature drift, this model stands out for stability and consistent output.’’