ETEL EA-S0M-300-40/80A-0000-00 Power Supply Module
The ETEL EA-S0M-300-40/80A-0000-00 is a centralized, high-capacity DC power supply module from the AccurET Modular 300 multi-axis motion control platform.
Manufactured by ETEL S.A. in Switzerland, this heavy-duty unit acts as the power foundation for multi-axis position controller racks (such as the EA-P2M series).
By supplying up to 40 A continuous and 80 A peak DC current over a shared backplane bus, it enables clean, energy-efficient power sharing across multiple sub-micron drive units within a single enclosure.
1. Technical Table
| Parameter Group | Technical Specification Attribute | Nominal Reference Value / Standard |
| Manufacturer Details | Brand | Origin | ETEL S.A. | Switzerland |
| Model Nomenclature | Complete Hardware Code | EA-S0M-300-40/80A-0000-00 |
| AC Line Input | Main Supply Configuration | Single-phase or 3-phase AC input |
| Input Voltage Range | 100 VAC to 240 VAC (±10%, 50/60 Hz) | |
| DC Bus Output | Nominal DC Bus Output Voltage | Approx. 300 VDC to 340 VDC (rectified from line) |
| Continuous Output Current ($I_{cont}$) | 40 A | |
| Peak Transient Current ($I_{peak}$) | 80 A | |
| Logic & Auxiliary | Auxiliary Input Voltage | 24 VDC (±10%) for control circuitry |
| Physical Attributes | Mounting Configuration | Direct plug-in slot for ETEL Modular Backplane |
| Weight | Approx. 2.1 kg (4.63 lbs) |
2. Environmental & Storage Conditions
To protect high-current rectification and filtering components, maintain the following thresholds:
Operating Environment
Ambient Operating Temperature: 0°C to +50°C. Adequate cabinet ventilation or forced-air cooling is mandatory when operating near full 40 A continuous loads.
Relative Humidity: 10% to 90%, non-condensing.
Working Atmosphere: Cleanroom compatible; completely free from conductive dust, vaporized slicing lubricants, or corrosive gas compounds.
Storage Conditions
Storage Temperature Range: -20°C to +70°C.
Humidity Threshold: Below 85% RH (strictly non-condensing).
Long-Term Protection: Store inside original anti-static moisture-barrier packaging to preserve internal bulk capacitors from premature degradation.
3. Basic Operating Instructions
Hardware Integration
Backplane Verification: Ensure the target AccurET modular backplane slot is free of debris. Slide the module into the dedicated power supply bay until the rear heavy-current pins seat securely. Torque the mounting screws to specifications.
AC Wiring Safety: Wire the incoming AC lines to the front terminals (L, N, PE or three-phase equivalents) using wire gauges sized to handle 40 A service safely.
Power-Up Sequence
Always energize the low-voltage auxiliary 24 VDC control power first (via the P00 Control Input connector) to initialize safety and diagnostic logic.
Verify that no “Power Error” LEDs are lit before closing the main line contactor to feed AC power to the rectifiers.
4. Fault Diagnosis & LED Interpretation
The module includes a front diagnostic panel with distinct diagnostic LEDs to track module health in real time:
Power Error LED (Active/Red): Indicates an internal over-current event, a thermal overload within the power bridges, or a short circuit on the shared DC bus. Isolate individual EA-P2M controller drives to locate the short circuit.
Control LED (Green): Confirms that the auxiliary 24 VDC logic circuit is operating correctly and the internal microcontrollers are active.
DC Bus Voltage Level Droop: If the bus drops under load, check whether the main incoming AC phase lines are stable and ensure the system is not pulling transient loads greater than 80 A.
5. Related Models of the Same Series
The AccurET power architecture scales cleanly across voltage thresholds to support different manufacturing footprints:
EA-S0M-048 Series: Low-voltage DC supply modules tailored strictly for 48 VDC low-inertia setups.
EA-S0M-300-40/80A-0000-00: The current 340 VDC mid-voltage heavy-duty power supplier module.
EA-P2M-300-07/15A-0100-01: Companion multi-axis 7 A/15 A controller module that draws power from this S0M unit.
EA-P2M-300-4/7.5A-0100-01: Low-power 4 A/7.5 A position controller module compatible with this power bus.
EA-S0M-400 Series: High-voltage centralized power module designed to support large-scale 400 VDC direct-drive motor syste
