Description
Product Overview
The ATOS E-ME-AC-05F is an analog electronic driver designed to control double-solenoid proportional hydraulic valves without integral transducers. Part of the ATOS E-ME-AC series, it receives a command from an external controller and regulates current supplied to the valve’s solenoid coils through pulse-width modulation (PWM). Unlike a conventional PLC output module, this card performs dedicated electrohydraulic control, translating positive and negative analog references into directional valve actuation. It is suited to machinery that requires controlled hydraulic movement without replacing the original control architecture.
Its principal electrical requirements include a nominal 24 VDC supply, an operating supply range of 21–33 VDC, and a maximum solenoid current of 3.3 A for standard applications. The factory-preset reference for the E-ME-AC-05F is ±5 V, with voltage-input impedance above 50 kΩ. An optional /I configuration accepts a 4–20 mA reference and uses a different input impedance. The card supports adjustable scale and bias settings, plus a ramp time of up to 5 seconds. These adjustments help technicians match the command signal to the hydraulic valve’s response. The manufacturer also documents short-circuit protection on the solenoid outputs and an internal safety fuse.
For maintenance and procurement teams, the ATOS E-ME-AC-05F can be relevant to hydraulic presses, metal-processing machinery, machine tools, and other automated equipment using proportional directional valves. Its 100 × 160 mm Eurocard format and male DIN 41612/D connector make the existing card holder and wiring arrangement important during replacement. The model is reported as discontinued, so sourcing may involve surplus inventory or a verified alternative. Before ordering the ATOS E-ME-AC-05F, compare the complete part number, factory calibration code, reference input, valve coil requirements, and connector assignment. Similar model designations do not establish direct interchangeability, and incorrect current or command scaling can change machine behavior.
Product Introduction (Non-Templated)
A hydraulic valve that fails to follow its command does not always need replacement. The fault may originate in the electronic driver. The ATOS E-ME-AC-05F regulates current to double-solenoid proportional valves using a ±5 V analog reference and a maximum standard output current of 3.3 A PWM.
For a legacy hydraulic-control repair, check the valve’s coil ratings, reference polarity, and card wiring before installation. Its adjustable ramp reaches 5 seconds, allowing technicians to tune response transitions to the application.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ATOS |
| Model | E-ME-AC-05F |
| Product Type | Analog proportional hydraulic valve driver |
| Series | E-ME-AC |
| Valve Configuration | Double-solenoid proportional valve |
| Transducer Requirement | For valves without integral transducers |
| Nominal Supply | 24 VDC |
| Supply Range | 21–33 VDC |
| Maximum Power Consumption | 50 W |
| Maximum Solenoid Current | 3.3 A PWM; 2.5 A for applicable explosion-proof valve applications |
| Factory-Preset Reference | ±5 VDC |
| Reference Input Option | 4–20 mA for /I configuration |
| Voltage Input Impedance | Greater than 50 kΩ |
| Current Input Impedance | 316 Ω for /I configuration |
| Reference Adjustment Range | Up to ±10 V maximum; minimum ±2.5 V as documented |
| Maximum Ramp Time | 5 seconds |
| Enable Input | 5–24 VDC |
| Solenoid Current Monitoring | 1 mV per 1 mA of coil current |
| Card Dimensions | 100 × 160 mm |
| Connector | Male DIN 41612/D |
| Compatible Connector Accessory | E-K-32M frame snap connector, ordered separately |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | −20°C to +70°C |
| Front Panel Dimensions | 128.4 × 35.3 mm |
| Weight | Approximately 540 g |
| Protection | Internal safety fuse and solenoid-output short-circuit protection |
| Communication | Analog control; no digital fieldbus interface specified |
| Lifecycle | Reported discontinued |
| Condition | Confirm actual inventory condition and functional-test status |
Specifications are based on ATOS E-ME-AC technical documentation. Confirm the exact hardware and option code before installation.
E-ME-AC-05F
Related Products
These products and component groups are relevant to replacement planning. Compatibility must be established from the actual model documentation.
1. ATOS E-ME-AC-01F — A related driver with a factory-preset 0 to +5 V reference rather than the E-ME-AC-05F’s ±5 V reference. Consider it only when the command polarity and valve-control arrangement match.
2. ATOS E-BM-AS-PS-05H — Reported as a possible successor candidate for the E-ME-AC-05F. Evaluate the supply, valve interface, mounting, wiring, and adjustment requirements before approving a retrofit.
3. ATOS E-BM-AC Series — A related electronic-driver family worth reviewing when planning a control-system modernization. Select a specific model only after confirming its intended valve configuration and electrical ratings.
4. ATOS E-K-32M — A frame snap connector accessory referenced in the E-ME-AC documentation. It may be needed for the applicable installation arrangement; verify the existing card holder and connector requirements.
5. ATOS E-ME-AC-05F/I — The current-reference option associated with the E-ME-AC-05F family. It is relevant to controllers providing 4–20 mA rather than the standard ±5 V reference.
6. ATOS E-ME-AC-05F with external reference control — The standard driver can operate with external reference signals or applicable onboard potentiometer arrangements. The required wiring and configuration depend on the installed version.
7. ATOS E-ME-AC-05F with ramp adjustment — Relevant when the hydraulic system requires controlled current transitions. The documented maximum ramp time is 5 seconds; the required setting depends on the valve and machine response.
8. ATOS Proportional Hydraulic Valves — The hydraulic components controlled by the driver. Coil current, solenoid arrangement, valve type, and factory calibration must match the amplifier’s capabilities.
Frequently Asked Questions (FAQ)
1. Is the ATOS E-ME-AC-05F compatible with an existing PLC or DCS?
It can operate with a PLC or DCS that provides the correct analog reference and enable signal. The driver handles valve-current regulation; it does not replace the controller’s logic or general-purpose I/O.
Before installation, check the controller’s output range, reference polarity, grounding, enable wiring, and valve coil ratings. A ±5 V reference must not be assumed equivalent to a 0–10 V or 4–20 mA signal.
2. Can I hot-swap the E-ME-AC-05F while the machine is running?
Do not assume hot swapping is permitted. Removing a powered driver may interrupt solenoid current and cause unexpected valve movement.
Follow the machine’s approved shutdown and lockout/tagout procedure, isolate hydraulic energy as required, and confirm the replacement wiring before restoring power. Test valve response under controlled conditions before returning the machine to service.
3. Does the E-ME-AC-05F support firmware v3.1?
A manufacturer-defined firmware version 3.1 could not be verified for this analog electronic driver. Firmware compatibility is therefore not a confirmed selection criterion for this model.
Instead, compare the hardware revision, full part number, reference-input option, and factory calibration code. If a replacement introduces a different control interface, verify the signal range and electrical requirements before commissioning.
4. Will replacing the E-ME-AC-05F erase my PLC logic or hydraulic settings?
Replacing the separate driver does not ordinarily erase logic stored in the PLC or DCS. However, the amplifier’s own scale, bias, and ramp adjustments can affect hydraulic response after replacement.
Before removing the original card:
- Record the factory calibration code and visible adjustment positions.
- Document the analog reference and enable wiring.
- Verify the replacement’s input configuration.
- Test movement in both directions at a safe operating condition.
A machine can retain its original PLC program and still behave differently if the replacement amplifier is configured incorrectly.
5. How can I verify that a new-surplus ATOS E-ME-AC-05F is genuine and unused?
Request actual-unit photographs, clear nameplate markings, revision details, packaging information, and any available inspection or functional-test records.
New surplus describes the claimed inventory condition; it does not automatically mean factory sealed, electrically tested, or covered by an active OEM warranty. Visual inspection can identify damage or mismatched markings, but a functional test is needed to assess operation.
6. Is the ATOS E-ME-AC-05F discontinued, and what can replace it?
Available product records identify the E-ME-AC-05F as discontinued and list the E-BM-AS-PS-05H as a possible replacement candidate. Confirm the current manufacturer guidance before selecting an alternative.
A proper replacement review should compare supply voltage, maximum coil current, analog reference, calibration options, connector pinout, and mounting dimensions. A similar product name alone is not proof of drop-in compatibility.
7. What warranty should I expect when buying the ATOS E-ME-AC-05F?
Warranty coverage depends on the supplier’s written terms and the unit’s actual condition. New-surplus, used, and refurbished inventory may have different coverage.
Before ordering, obtain written confirmation of the warranty period, covered failures, exclusions, return procedure, and availability of replacement stock. For production-critical machinery, also establish how a failed commissioning test will be handled.
