ABB Bailey SPDSI22 DI Module

FAQ

Q1: What is the main function of this module?
A1: It serves to input discrete signals (such as switches or relay contacts) from the field into the control system for monitoring.

Q2: How many input channels does the module support?
A2: It supports 16 digital input channels.

Q3: What input voltage types are supported?
A3: It supports 24 V DC, 48 V DC, 125 V DC and 120 V AC.

Q4: What are the module’s dimensions and weight?
A4: 260 × 100 × 50 mm, weight about 0.5 kg.

Q5: What is the operating temperature range?
A5: –20 °C to +70 °C in typical conditions; some sources indicate –40 °C to +85 °C.

Q6: What should be considered during installation?
A6: Ensure compatibility with the backplane/system, correct input voltage matching, correct channel wiring and that the environment is within temperature and isolation specifications.

Q7: What systems is this module used in?
A7: Commonly used in DCS/distributed control systems for discrete input expansion in power generation, chemical plants, water treatment and similar environments.

Q8: What key selection parameters should be checked?
A8: Check number of channels, input voltage type, response time, module dimensions/weight, and environmental suitability (temperature, isolation rating).

ABB Bailey DI Module SPDSI22

We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.

For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.

Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.