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ABB DI890 3BSC690073R1 Digital Input Module

15 in stock

Manufacturer: ABB
Product No.: DI890
Country of origin: Sweden
Product Type: Digital Input Module
Condition: Brand New
Payment: T/T, Western Union
Weight: 0.2 kg
Shipping port: Xiamen
Warranty: 12 months

Description
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The ABB DI890 3BSC690073R1, also cataloged as the DI890 Digital Input Module, provides eight galvanically isolated NAMUR input channels for monitoring proximity sensors or voltage-free contacts in the ABB S800 I/O system. Each channel incorporates Intrinsic Safety protection, process voltage supervision, current-limited sensor power, and line-fault detection.

Hardware Specifications

Parameter	Specification
Model	DI890
Article Number	3BSC690073R1
Brand	ABB
Series	S800 I/O
Module Type	Digital Input
Signal Specification	NAMUR input level
Number of Channels	8
Signal Type	NAMUR proximity sensor or voltage-free contact
HART	No
SOE	No
Redundancy	No
High Integrity	No
Intrinsic Safety	Yes
Isolation	Individually isolated, channel-to-channel and to circuit common ground
Filter Times	2, 4, 8, 16 ms digital; 1 ms analog filter
Rated Insulation Voltage	50 V
Dielectric Test Voltage	500 V AC
Current Limiting	Built-in current-limited sensor power
Power Dissipation	1.4 W
ModuleBus Current	Typ. 120 mA, max. <150 mA at +5 V
External Supply Current	Typ. 50 mA, max. <70 mA at +24 V
Operating Temp	0 to +55 deg C
Storage Temp	-40 to +70 deg C
Relative Humidity	5 to 95 %, non-condensing
Protection Class	IP20
Corrosion Protection	ISA-S71.04 G3
Width	45 mm
Depth	102 mm; 111 mm including connector
Height	119 mm
Weight	0.2 kg
Power Consumption	1.4 W power dissipation
Compatible MTU	TU890, TU891
Keying Code	AA
Certifications	CE, ATEX, IECEx, cFMus, ABS, BV, DNV, LR, CCS

Intrinsic Safety and Channel Isolation

The DI890 provides Intrinsic Safety protection independently on all eight input channels. Each channel is galvanically isolated from the power supply, ground, ModuleBus, and the other input channels. NAMUR proximity sensors can be powered and monitored directly by the input channels, while line faults can be detected without additional external components when the sensors conform to the NAMUR interface requirements.

For voltage-free contacts, external series and parallel resistors are required for line-fault supervision. The input stages derive their operating power from the 24 V supply connection and incorporate current limiting, short-circuit protection to ground and 30 V, over-voltage protection, and over-temperature protection.

Frequently Asked Questions

Q: Which field devices can be connected to the DI890?

A: The module accepts NAMUR-compliant proximity sensors and voltage-free contacts. Voltage-free contacts require external series and parallel resistors when line-fault detection is required.

Q: Are the eight DI890 input channels electrically isolated?

A: Yes. Each channel is individually galvanically isolated from the other channels, circuit common ground, the power supply, and the ModuleBus.

Q: Which mounting terminals are compatible with the DI890?

A: The module is compatible with TU890 and TU891 Compact MTUs. TU890 is specified for Ex applications, while TU891 is specified for non-Ex applications.

Field Installation Guidelines

Install the DI890 on the specified S800 I/O mounting arrangement using a compatible TU890 or TU891 Compact MTU.
Use TU890 for Ex applications and TU891 for non-Ex applications as specified by the system configuration.
Verify that connected proximity sensors conform to the NAMUR interface requirements.
For voltage-free contacts with line-fault supervision, install the required external series and parallel resistors according to the approved circuit design.
Keep field signal wiring separated from high-voltage and high-current conductors to reduce electromagnetic coupling.
Connect cable shields according to the installation and grounding design of the S800 I/O system and the applicable hazardous-area requirements.
Verify the channel wiring and polarity before energizing the 24 V supply.
Check the front Fault, Run, Warning, and channel-status LEDs after commissioning.
Observe the specified 0 to +55 deg C operating range and the lower 40 deg C maximum ambient limit where applicable to vertical mounting in the compact MTU.
Maintain the applicable hazardous-location installation requirements for ATEX, IECEx, cFMus, and associated Zone 0/Zone 2 interfaces.

Payment: T/T, Western Union.

Shipping port: Xiamen.

Lead time: Typically 1–3 working days after payment confirmation (subject to stock).

Worldwide delivery: We ship industrial automation parts to customers around the world. Freight is quoted with your RFQ.

F.A.Q.

Common questions about quotes, shipping, warranty and returns

Click Request a Quote on the product page and send us the part number, required quantity, and destination country. Our sales team will reply with current availability, pricing, and estimated delivery time.

In-stock items are normally prepared after payment and order confirmation. Most orders are dispatched from our warehouse in China, although the shipping location may vary depending on current stock.

Yes. We ship industrial automation parts to customers worldwide. Shipping cost and transit time depend on the destination, package weight, product size, and local import requirements.

We commonly use DHL, FedEx, UPS, and other international courier services. The carrier can be selected according to the destination, delivery speed, shipment size, and customer requirements.

Our products are generally covered by a 12-month warranty. Eligible products may also be returned under our 30-day refund policy. Please contact our team before returning any item to confirm the applicable terms and return instructions.