ABB DO890 3BSC690074R1 Digital Output IS 4 Ch
General info
| Manufacture | ABB |
| Item No | DO890 |
| Article number | 3BSC690074R1 |
| Series | 800xA Control Systems |
| Origin | Sweden |
| Dimension | 73*233*212(mm) |
| Weight | 0.5kg |
| Customs Tariff Number | 85389091 |
| Type |
Digital Output
|
Detailed data
ABB DO890 3BSC690074R1 Digital Output IS 4 Ch
The module includes Intrinsic Safety protection components on each channel for connection to process equipment in hazardous areas without the need for additional external devices.
The DO890 module is used to output digital control signals to external field devices. It provides electrical isolation between field devices and control systems, helping to protect the system from electrical noise, faults, or surges in industrial environments.
Each channel can drive a nominal current of 40 mA into a 300-ohm field load such as an Ex-certified solenoid valve, alarm sounder unit, or indicator lamp. Open and short circuit detection can be configured for each channel. All four channels are galvanic isolated between channels and from the ModuleBus and power supply. Power to the output stages is converted from the 24 V on the power supply connections.
TU890 and TU891 Compact MTU can be used with this module and it enables two wire connections to the process devices without additional terminals. TU890 for Ex applications and TU891 for non Ex applications.
The module has 4 independent digital output channels and can control up to 4 external devices.
Frequently asked questions about the product are as follows:
- What devices can be controlled using the DO890 module?
A wide variety of digital devices that require an on/off signal can be controlled, including relays, solenoids, motors, actuators, and valves.
- What is the purpose of the electrical isolation function?
The isolation function prevents faults, electrical noise, and surges from field devices from affecting the control system, ensuring safe operation in harsh environments.
- How do I configure the DO890 module?
Configuration is done through the S800 I/O System Configuration Tool, where each channel can be set up and diagnostics monitored for performance.
