ABB ZMU-03 3AXD50000223107 Memory Unit

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ABB ZMU-03 3AXD50000223107 Memory Unit

1. Product Overview

2. Core Technical Parameters

3. Key Advantages

1. Dual Signal Adaptation for Compatibility
   Supports bidirectional conversion between common industrial signals (0-10 V ↔ 4-20 mA) and digital signal polarity adjustment (PNP/NPN), eliminating the need for external signal converters. For example, it can convert 0-10 V voltage signals from a temperature sensor into 4-20 mA current signals (less susceptible to line loss) for long-distance transmission to the AC 800M controller.
2. High Conversion Accuracy & Signal Stability
   Analog conversion accuracy of ±0.1% FS ensures precise signal transmission—critical for high-precision control scenarios (e.g., pharmaceutical dosing, semiconductor manufacturing). Built-in EMI filters suppress electrical noise from motors or inverters, while 500 V DC channel isolation prevents cross-signal interference, maintaining signal integrity.
3. Compact Design & Easy Integration
   DIN rail-mounted compact form saves control cabinet space, and native compatibility with ABB’s control systems (AC 800M/S500) enables plug-and-play integration. No custom programming is required; parameters (e.g., signal type, conversion range) can be configured via ABB Control Builder M, reducing setup time by up to 30%.
4. Industrial-Grade Durability
   -40℃ to +70℃ operating temperature range and 1500 V DC signal-to-power isolation withstand extreme industrial conditions, from freezing outdoor substations to high-temperature chemical plants. Vibration resistance (IEC 60068-2-6) ensures reliability in mobile equipment (e.g., on-site process skids).

4. Typical Applications

1. Process Control (Chemical/Pharmaceutical)
   Converts 0-10 V voltage signals from a pH sensor (tank solution acidity) into 4-20 mA current signals for long-distance transmission to the AC 800M DCS. Adjusts digital PNP signals from a level switch (tank full/empty) to NPN format, matching the input requirement of downstream solenoid valves.
2. Discrete Manufacturing (Automotive/Electronics)
   Adapts 4-20 mA current signals from a robotic arm position sensor into 0-10 V voltage signals for compatibility with a digital display HMI. Converts 24 V DC digital signals from a proximity sensor (part presence) into a trigger signal for a conveyor belt control relay.
3. Energy & Power Auxiliary Systems
   In solar power plants, converts 0-10 V DC signals from a solar irradiance sensor into 4-20 mA signals for the AC 800M controller, enabling real-time adjustment of inverter output. Adapts digital status signals from a circuit breaker (on/off) to match the input format of a power monitoring system.
4. Water & Wastewater Treatment
   Converts 4-20 mA flow rate signals from a pipeline flow meter into 0-10 V signals for a local control panel. Adjusts 24 V DC PNP signals from a pressure switch (pump discharge pressure) to NPN, ensuring compatibility with the S500 PLC’s digital input module.

The structure and details of the product：

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