Comprehensive Product Summary: Dataforth MAQ20-VO Voltage Output Module

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### 1. Product Overview

Product Name: MAQ20-VO
Model Number: MAQ20-VO
Series: MAQ®20 Industrial Data Acquisition and Control System
Article Number: MAQ20-VO
Manufacturer: Dataforth Corporation
Manufacturer Location: 3331 E. Hemisphere Loop, Tucson, AZ 85706, USA
Website: [www.dataforth.com](http://www.dataforth.com)
Contact: techinfo@dataforth.com | Phone: +1-520-741-1404 | Toll-Free: 800-444-7644

The MAQ20-VO is an eight-channel, isolated voltage output module designed for the MAQ®20 modular data acquisition and control system. It provides precision analog voltage outputs for process control, automation, and industrial monitoring applications. The module mounts directly on a DIN rail and connects to the MAQ20 backbone, integrating seamlessly with other MAQ20 I/O and communication modules.

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### 2. Key Features

- Eight Isolated Voltage Output Channels: Each channel is individually configurable for range, default output, and waveform generation.
- Selectable Output Ranges: ±10V, ±5V, ±2.5V, 0–10V, 0–5V, and 0–2.5V.
- High Accuracy and Stability: ±0.040% of span accuracy, ±0.030% linearity, and low temperature coefficients (±25ppm/°C zero, ±35ppm/°C span).
- High Isolation: 1500Vrms channel-to-bus and 300Vrms channel-to-channel isolation.
- Robust Protection: 40Vrms continuous overload protection and ANSI/IEEE C37.90.1 transient protection.
- High-Speed Performance: 100Hz bandwidth and 1600 channels per second update rate.
- Output Burst Mode: User-programmable waveform or data stream output with up to 100 data points per channel.
- Hot-Swappable Design: Modules can be inserted or removed without system shutdown.
- Automatic Module Registration: The system automatically detects and registers modules upon installation.
- Wide Operating Range: -40°C to +85°C industrial temperature range.
- Compact DIN Rail Mounting: 114.6mm x 82.8mm x 15.3mm form factor for high-density installations.
- Compliance: CE compliant, UL/CUL Class I Division 2 pending, ATEX pending.
- Software Integration: Compatible with Dataforth’s ReDAQ Shape and Configuration Software Tool for setup, monitoring, and control.

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### 3. Technical Specifications

Electrical Characteristics:
- Output Channels: 8 isolated voltage outputs
- Output Ranges:
- ±10V (default)
- ±5V
- ±2.5V
- 0–10V
- 0–5V
- 0–2.5V
- Output Drive Capability: 10mA (1000Ω load at 10V)
- Over-Range Capability: ±5% beyond nominal range (e.g., ±10.5V for ±10V range)
- Resolution: 0.024% of span (12-bit equivalent, 4096 counts)
- Accuracy: ±0.040% of span (includes linearity, hysteresis, repeatability)
- Linearity/Conformity: ±0.030% of span
- Bandwidth: 100Hz
- Update Rate: 1600 channels per second
- Common Mode Voltage (CMV):
- Channel-to-Bus: 1500Vrms for 1 minute
- Channel-to-Channel: 300Vrms
- Common Mode Rejection (CMR): 75dB at 50/60Hz
- Output Protection: 40Vrms continuous, ANSI/IEEE C37.90.1 transient protection
- Power Supply Current: 450mA (no load), 650mA (full load)
- Power Supply Voltage: 7–34VDC (supplied via MAQ20-COMx or MAQ20-PWR3)

Mechanical and Environmental:
- Dimensions: 114.6mm (H) × 15.3mm (W) × 82.8mm (D)
- Weight: Approx. 150g
- Mounting: DIN rail, mates with MAQ20 backbone
- Operating Temperature: -40°C to +85°C
- Storage Temperature: -40°C to +85°C
- Humidity: 0–95% RH, non-condensing
- Enclosure: Ventilated industrial-grade housing

Compliance and Safety:
- EMC Emissions: EN61000-6-4 (ISM Group 1, Class A)
- EMC Immunity: EN61000-6-2 (ISM Group 1, Performance A/B)
- Certifications: CE, UL/CUL (pending), ATEX (pending)
- Quality System: ISO9001:2008 Registered QMS

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### 4. Functionality

The MAQ20-VO module provides precision voltage outputs for process control and automation systems. Each channel can be configured independently for voltage range, default output, and waveform generation. The module communicates with the MAQ20-COMx communication module via the system backbone using a Modbus-compatible memory map.

Use Cases:
- Analog control of actuators, valves, and drives
- Signal generation for test and simulation systems
- Process control loops requiring voltage outputs
- Industrial automation and SCADA systems
- Laboratory and R&D instrumentation

Compatibility:
- Works with MAQ20-COMx communication modules (Ethernet, USB, RS-232/RS-485)
- Integrates with MAQ20-BKPLx backbones and MAQ20-PWR3 power modules
- Configurable via Dataforth ReDAQ Shape or MAQ20 Configuration Software Tool
- Modbus-compatible for third-party integration

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### 5. Components & Accessories

Included Components:
- MAQ20-VO module
- Pluggable terminal block for field wiring (20-position)
- ESD protective packaging

Terminal Block Connections (Top to Bottom):
1–2: CH0 +OUT / -OUT
3–4: CH1 +OUT / -OUT
5: Shield
6–7: CH2 +OUT / -OUT
8–9: CH3 +OUT / -OUT
10: Shield
11–12: CH4 +OUT / -OUT
13–14: CH5 +OUT / -OUT
15: Shield
16–17: CH6 +OUT / -OUT
18–19: CH7 +OUT / -OUT
20: Shield

Optional Accessories:
- MAQ20-BKPLx backbones (various channel capacities)
- MAQ20-COMx communication modules
- MAQ20-PWR3 power supply module
- ReDAQ Shape software (MAQ20-940 Developer / MAQ20-941 User)
- Configuration Software Tool (MAQ20-945)

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### 6. Installation & Setup

Mounting Procedure:
1. Align the module with the DIN rail and slide downward to engage the hook.
2. Rotate the module until it snaps into place.
3. To remove, release the bottom clip manually or with a screwdriver.

System Setup:
1. Install the MAQ20-BKPLx backbone and MAQ20-COMx module.
2. Apply system power (7–34VDC).
3. Insert MAQ20-VO modules; automatic registration occurs within 1 second.
4. Configure channels via software or Modbus registers.

Configuration:
- Each channel’s range, default output, and waveform can be set via Modbus registers.
- Default outputs are stored in EEPROM for power-up initialization.
- Output Burst Mode allows waveform generation with programmable refresh rates (10–65,535ms).

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### 7. Performance & Capabilities

Speed and Capacity:
- 8 channels per module, up to 24 modules per system (384 channels total).
- 1600 channel updates per second.
- 100Hz analog bandwidth.

Efficiency and Reliability:
- Distributed processing architecture for autonomous operation.
- Hot-swappable modules minimize downtime.
- Automatic detection and registration of modules.
- EEPROM storage for persistent configuration.

Limitations:
- Maximum output current: 10mA per channel.
- Maximum continuous overload: 40Vrms.
- Burst Mode limited to 100 data points per channel.

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### 8. Standards & Compliance

Electrical and Safety Standards:
- ANSI/IEEE C37.90.1 transient protection
- CE compliant (EN61000-6-2, EN61000-6-4)
- UL/CUL Class I, Division 2, Groups A–D (pending)
- ATEX certification (pending)

Quality and Manufacturing:
- Manufactured under ISO9001:2008-registered quality management system.
- Designed for heavy industrial environments with high noise immunity.

Environmental Compliance:
- RoHS compliant materials and construction.
- Designed for Class I, Division 2 hazardous locations.

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### 9. Additional Information

Warranty:
- Hardware: 1-year limited warranty from date of delivery.
- Software: 30-day warranty.
- Special Products: 60-day warranty.
- Coverage includes defects in materials and workmanship under normal use.

Repair and Returns:
- Return Material Authorization (RMA) required.
- Contact Dataforth Customer Service at +1-520-741-1404.
- Ship prepaid to Dataforth Corporation, Tucson, AZ.

Support and Maintenance:
- Technical support via email (techinfo@dataforth.com) or phone.
- Application engineers available for system design assistance.
- Software updates and errata available on [www.dataforth.com](http://www.dataforth.com).

Maintenance Notes:
- Modules are hot-swappable and automatically re-registered upon replacement.
- Periodic inspection recommended for terminal connections and DIN rail integrity.
- ESD precautions required during handling.

Software Tools:
- ReDAQ Shape: Graphical HMI design and runtime environment for MAQ20 systems.
- Configuration Software Tool: Simplified setup and calibration interface.
- IPEMotion: Multi-vendor, multi-language integration platform.

System Expansion:
- Up to 24 I/O modules per backbone system.
- Additional modules automatically detected and registered.
- Power expansion via MAQ20-PWR3 for large systems.

LED Indicators:
- PWR (Blue): Power status
- STAT (Green): Module status and identification blink
- TX/RX (Yellow): Communication activity
- ALM (Red): Alarm condition

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### Summary

The Dataforth MAQ20-VO is a high-performance, eight-channel voltage output module engineered for industrial-grade data acquisition and control. It combines precision analog output capabilities with robust isolation, configurable ranges, and advanced features such as programmable waveform generation and EEPROM-based configuration retention. Designed for seamless integration within the MAQ20 modular system, it supports Modbus communication, hot-swappable installation, and operation in harsh environments. With its compact DIN-rail form factor, wide temperature tolerance, and compliance with international standards, the MAQ20-VO delivers reliable, scalable, and flexible voltage output functionality for demanding automation, process control, and test applications.