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ABB DO801 16-channel 24 V digital output module

1. Product Description

The ABB DO801 is a high-density 16-channel digital output module designed for industrial automation control systems, specifically optimized for 24 V DC output scenarios. It receives digital control signals from upper controllers (e.g., ABB AC 800M DCS) and converts them into stable 24 V DC output signals to drive on-site executive components, such as relays, contactors, solenoid valves, and indicator lights. With features like low power consumption, strong load driving capability, and reliable signal transmission, the module effectively bridges the controller and field devices, ensuring precise execution of industrial control commands and stable operation of production processes.

2. Detailed Parameters

Parameter Category	Specifications
Output Channels	16 channels (isolated in groups of 4 channels)
Output Signal Type	24 V DC digital output (sinking/sourcing configurable)
Rated Output Voltage	24 V DC (voltage range: 19.2 - 28.8 V DC)
Maximum Output Current	Per channel: 1 A; Per group (4 channels): 4 A
Isolation	Group-to-group: 500 V DC; Channels-to-backplane: 1500 V DC
Response Time	≤ 1 ms (for output signal on/off transition)
Operating Temperature	-40°C to +70°C
Dimensions (W×H×D)	48.3 × 100 × 150 mm
Mounting Method	DIN rail mounting (compatible with standard 35 mm DIN rails)
Protection Features	Overcurrent protection (per channel), short-circuit protection

3. Advantages & Features

High Channel Density: 16 output channels in a compact form factor maximizes cabinet space utilization, reducing the number of modules required for multi-device control and lowering system costs.

Flexible Load Adaptation: Supports both sinking and sourcing output modes, compatible with various 24 V DC load types (e.g., relays, solenoid valves) and adapting to different field wiring requirements.

Reliable Protection Mechanisms: Equipped with per-channel overcurrent and short-circuit protection, preventing module damage caused by abnormal loads and enhancing system fault tolerance.

Fast Response Speed: ≤1 ms on/off response time ensures timely execution of control commands, suitable for high-speed production lines (e.g., assembly lines, packaging machines) that require rapid device switching.

Stable Group Isolation: 4-channel group isolation design reduces cross-interference between different load circuits, ensuring stable output signals even when multiple channels are operating simultaneously.

4. Application Fields

Automotive Assembly: Controlling the operation of solenoid valves for robotic welding arms, conveyor belt drive contactors, and assembly station indicator lights.

Electronics Manufacturing: Driving pick-and-place machine vacuum pumps, PCB conveyor line relays, and testing equipment control switches.

Packaging Industry: Regulating packaging machine sealing heaters (via contactors), film tension control solenoid valves, and finished product sorting conveyor relays.

Food & Beverage: Controlling filling machine valve solenoids, bottle capping machine drive relays, and production line emergency stop indicator lights.

5. Precautions

Confirm the load type (sinking/sourcing) before wiring and configure the module accordingly; incorrect configuration may cause load failure or module damage.

Do not exceed the maximum output current (1 A per channel, 4 A per group) to avoid triggering overcurrent protection and affecting normal operation of other channels in the same group.

When connecting inductive loads (e.g., relays, solenoid valves), install freewheeling diodes in parallel with the load to suppress voltage spikes and protect the module’s output circuit.

Avoid installing the module in environments with high humidity (>90% RH, non-condensing) or heavy dust; use a dustproof and waterproof cabinet if necessary to prevent short circuits.

Regularly check the module’s terminal connections and load wiring; loose connections may cause contact resistance to increase, leading to overheating or intermittent output failures.

The structure and details of the product：

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