EEA-PAM-533-D-32 Vickers
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The Vickers EEA-PAM-533-D-32 is a power amplifier from the EEA-PAM Power Amplifiers series. It features a maximum solenoid current of 2.7 Amps and uses a DIN 41612 F48 Male edge connector type. The amplifier provides a control supply output of +15 V for LVDT and has command input impedances of 100 Ohms for current and 47 kOhms for voltage.
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Product Description:
The EEA-PAM-533-D-32 is a plug-in power amplifier card from the EEA-PAM Power Amplifiers series manufactured by Vickers. The board conditions command signals, supplies regulated power to an LVDT, and drives proportional solenoids used in hydraulic valve positioning. Within an automation rack the module provides the interface between a motion controller and the valve coil, translating low-level control references into controlled current for precise spool movement.
The command stage accepts a voltage reference through an input impedance of 47 kΩ or a current reference through a separate path rated at 100 Ω. A dedicated +15 V rail, delivered at +15 V, powers the LVDT feedback electronics on the associated transducer. When the incoming command is zero, the card draws 0.3 A; this baseline current supports its analog circuitry and keeps the ramp generator active. Coil power is limited by a maximum solenoid current of 2.7 A, a value set by the drive stage to protect the valve from thermal overload. Additional tuning points include a feed-forward input with 6 kΩ impedance, a monitor test pin buffered by 10 kΩ, and a ramp active output that also sits on 10 kΩ, allowing safe oscilloscope probing without disturbing the loop.
Diagnostic and interlock functions complete the interface. An alarm channel can sink up to 50 mA, while its series resistance of 50 Ω limits fault current. The DIN back-plane connection uses a DIN 41612 F48 Male edge connector to align with standard card cages, and digital control lines load only 10 mA per input. Sensor feedback is isolated by a high-resistance path of 1 MΩ, minimizing loading on external pickups. Reference outputs supply +10 V at +10 V for positive scaling and –10 V at 5 mA for bipolar operation. A separate 50 Ω drive-zero resistor gives a defined output when the card is disabled, ensuring predictable valve closure.
Frequently Asked Questions about EEA-PAM-533-D-32:
Q: What is the maximum solenoid current supported by the EEA-PAM-533-D-32 amplifier?
A: The maximum solenoid current output for this amplifier is 2.7 A.
Q: What type of edge connector does the EEA-PAM-533-D-32 power amplifier use?
A: The EEA-PAM-533-D-32 uses a DIN 41612 F48 Male edge connector.
Q: What is the control supply output voltage for the LVDT of the EEA-PAM-533-D-32?
A: The control supply output for LVDT sensors is +15 V on this model.
Q: What is the command voltage input impedance of the EEA-PAM-533-D-32?
A: The amplifier accepts a command voltage input with a 47 kΩ impedance.
Q: What is the negative reference voltage specification of the EEA-PAM-533-D-32?
A: The negative reference voltage is -10 V with a current of 5 mA on this unit.
