Home Vickers EEA-PAM-5**-A-32 Power Amplifiers EEA-PAM-581-A-32

EEA-PAM-581-A-32

Name: EEA-PAM-581-A-32
Brand: Vickers
Price: 167 USD
Availability: InStock
Rating: 4.5 (35 reviews)

Rated 4.5 (35 total ratings)

No Tariffs On US Orders

Straightforward Pricing: No Rush Fees, No Credit Card Fees

In-Stock, Ships Today

Preparing your secure checkout page...

The model EEA-PAM-581-A-32 supports ?10 V commands with 47 k? impedance. It has an overload detection feature with an automatic reset. The adjustable ramp-time ranges from 50 ms to 5 s.

Quote Request Form:

Phone

Part Number

Message (Optional)

Website

Include Repair Options

Have a part to sell?

Wake Industrial Warranty

To contact sales for pricing and lead time:

Phone: 1-888-551-3082

International: 1-919-443-0207

Email: sales@wakeindustrial.com

Payment Methods

Shipping Methods

Our Credentials

Product Description:

The eea-pam-581-a-32 has an overload detection feature with automatic reset. The input impedance for the drive is 22 k. The gain is factory set at 10 %/V, with an adjustable range of 2.5 to 10 %/V per direction. The zero adjustment is also flexible, allowing for 0 to 50% of the maximum spool stroke.

The EEA-PAM series power amplifier card is designed to enhance the performance and efficiency of hydraulic systems. The model operates on a nominal power supply of 24 V DC x 50 W, with a voltage range of 20 ? 40 V DC and reverse-polarity protection. The amplifier card ensures stability and safety with an amplifier shutdown voltage of <18 V DC. The model has factory-set dither and deadband compensation, with a deadband compensation adjustment per direction ranging from 0 to 50% of the maximum spool stroke from the centered position. The EEA-PAM-581 series power amplifier card?s power drive is PWM short-circuit protected. The model features an adjustable ramp-time setting, with factory settings of approximately 50 ms and adjustable from 50 ms to 5s.

The eea-pam-581-a-32 can handle ?15 V x 50 mA max, with a peak-to-peak ripple of 50 mV. It also supports ?10 V (?1%) x 5 mA max, with a peak-to-peak ripple of 20 mV. The temperature drift is <1 mV/?C (0.5 mV/?F) over a range of 0 - 50?C (32-122?F). All outputs of the model are short-circuit protected. The command inputs of the model are versatile, supporting both direct and inverting voltage commands, with a range of 0 to ?10 V and an input impedance of 47 k?. The model eea-pam-581-a-32 also accommodates current inputs of 0 to ?20 mA with an input impedance of 100?.

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

Amplifier Input Current at 0V Command Signal
1.7 A

Command Signal Monitor Point Output
10 kohms short-circuit protected

Dither
Factory-set

Max. Solenoid Current
3.2 A

Nominal Power Supply
24 V DC

Overload Detection
Automatic reset

Protection
Reverse-polarity

Ramp-active Indicator Output
10 kohms

Ramps Input
22 kohms

Weight
330 g

EEA PAM 581 A 32
EEA-PAM-58l-A-32
EEAPAM581A32

Symptom / LED Indication	Likely Cause	Quick Troubleshooting Step
24 V LED off	Card not powered (supply < 20 V DC, blown fuse, reversed polarity)	Measure cabinet PSU, replace fuse, correct polarity then repower card.
15 V LED off while 24 V LED is on	On-board ±15 V logic rail missing (regulator fault)	Check ±15 V at test-jack z22 / b22; if 0 V replace regulator or card.
Enable LED dark although PLC outputs > +10 V to pin z24	Enable line actually < +6 V (broken PLC output / field wiring)	Trace/repair line to z24, restore ≥ +10 V, reseat card to reset latch.
Overload LED lit (red)	Solenoid current > 2.5 A (shorted coil or wrong valve)	Measure coil Ω, inspect cable for shorts, fit correct coil; LED clears automatically.
LVDT 1 Fail LED on	First feedback transducer open-circuit / out-of-range	Verify ±15 V sensor supply, repair 6-pin cable on pins b14/z22/b16, re-zero loop.
LVDT 2 Fail LED on	Second feedback channel fault (double-feedback amplifier)	Repeat Step 5 for pins z14/z22/z16; both fail LEDs must be OFF before operation.
Watch-dog LED flashing	Internal micro-controller or noisy 24 V supply	Power-cycle card; if fault recurs, add 24 V filtering or replace card.
Ramp pots have no effect / valve jerks	Quadrant-ramp bypass link b12–b20 left closed	Remove jumper or route it through a remote switch to re-enable 4-quadrant ramps.
Command signal present but no valve motion	Set-minimum or Gain* pots fully CCW (zero output)*	Turn pots CW until monitor jack MP1 ≈ ±0.5 V; verify valve stroke.
Card drops out < 19 V or at > 50 °C	Low-voltage or thermal protection tripped	Upgrade PSU (≥ 50 W) / improve cabinet cooling; allow board to cool < 45 °C, then restart.

Model	Intended Valve Family	Command Inputs	Ramp Generator	Diagnostics / LEDs	Max Coil I (A)
EEA-PAM-581-A-32	KHDG5V-5/7/8, double-feedback servo	±10 V + ±15 V ref	Four-quadrant (acc/dec each dir.)	24 V, 15 V, Enable, Overload, 2× LVDT Fail, Watch-dog	2.5
EEA-PAM-571-A-32	KFDG5V high-dynamic servo	±10 V + ±15 V ref	Four-quadrant	LVDT Fail, Overload, Watch-dog	2.5
EEA-PAM-553-D-33	KSDG4V-3 servo spools	±10 V + sensor ref	Quad-ramp	24 V, 15 V, Enable, Overload, Dual LVDT Fail	2
EEA-PAM-561-A-32	KDG5V-5/7 spools (single LVDT)	±10 V	Dual independent ↑/↓	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 adj. (20 ms–3 s)	24 V, 15 V, Enable, Overload	1.6
EEA-PAM-525-A-32	KDG4V-5 high-flow directional	0–10 V × 5 \| 0–20 mA × 1	Single adj.	24 V, 15 V, Enable, Overload	1.6

LED / Condition	Likely meaning
24 V LED off	No or low 24 V DC (< 20 V)
15 V LED off (24 V LED on)	Internal ±15 V logic rail missing
*Enable LED dark (PLC sends > 10 V to z24)*	Enable line actually < 6 V (open wire or PLC output fault)
Overload LED lit	Coil current > 2.5 A (shorted coil / wrong valve)
LVDT 1 Fail LED	Feedback transducer 1 open-circuit / out of range
LVDT 2 Fail LED	Fault on second LVDT channel
Watch-dog LED flashing	Micro-controller reset caused by noise or firmware fault
Ramp pots have no effect	Quadrant-ramp bypass link b12–b20 left closed
Command present but no valve motion	Set-minimum or Gain* pots turned fully CCW*
Card drops out when 24 V < 19 V or temp > 50 °C	Low-voltage or over-temperature protection active

Frequently Asked Questions about EEA-PAM-581-A-32:

Q: Can you adjust the gain on the EEA-PAM-581-A-32?

A: Yes, the gain is factory set at 10 %/V. It is adjustable from 2.5 to 10 %/V per direction.

Q: What is the power supply requirement for the EEA-PAM-581-A-32?

A: The model operates on 24 V DC x 50 W nominal power. The voltage range is 20 ? 40 V DC.

Q: What is the overload protection feature in the EEA-PAM-581-A-32?

A: The EEA-PAM-581-A-32 includes overload detection. It has an automatic reset feature for enhanced safety.

Q: How does the EEA-PAM-581-A-32 handle temperature changes?

A: The model has a temperature drift of less than 1 mV/?C. It operates reliably within a range of 0 to 50?C.

Q: What are the connectivity options for the EEA-PAM-581-A-32 model?

A: The EEA-PAM-581-A-32 supports both direct and inverting voltage commands. The range is 0 to ?10 V. The input impedance is 47 k?.

Internal Product Review

‘‘The high performance model EEA-PAM-581-A-32 has a 24 V DC x 50 W nominal power supply with reverse-polarity protection. It features adjustable ramp-time settings from 50 ms to 5 s and PWM short-circuit protection. Factory-set dither and deadband compensation enhance hydraulic system performance.’’