Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IMDSI22 |
| Brand | ABB |
| Product Type | Universal Digital Input Module |
| Origin | Sweden |
| Power Consumption | +5 VDC at approximately 115 mA |
| Input Channels | 16 independent digital input points |
| Input Voltage Classes | 24 VDC, 48 VDC, 125 VDC, 120 VAC |
| System Compatibility | ABB Bailey INFI 90 OPEN, Net 90, Symphony Harmony rack systems |
| Signal Function | Discrete status, alarm, trip, permissive, and interlock monitoring |
ABB INFI 90 Backplane and I/O Signal Processing
The IMDSI22 interfaces discrete field devices with ABB control processors through the INFI 90 system architecture. It receives binary electrical states from external contacts and transfers processed status information through the system backplane.
Additionally, the module supports I/O density scaling within ABB rack configurations by providing 16 input channels in a single module slot. The backplane interface manages module communication, status reporting, and controller data exchange.
The module operates with ABB industrial control hardware that uses defined backplane bus communication methods. Therefore, installation must maintain correct rack addressing, module positioning, and firmware compatibility between system components.
Frequently Asked Questions
Q: What field signals can the ABB IMDSI22 process?
A: The IMDSI22 processes discrete ON/OFF field signals, including contact status, alarms, trips, permissive signals, and sequence interlock inputs.
Q: Does the IMDSI22 support multiple input voltage levels?
A: Yes. The module supports 24 VDC, 48 VDC, 125 VDC, and 120 VAC digital input signal classes.
Q: What power supply does the IMDSI22 require from the system backplane?
A: The module requires +5 VDC system logic power with an approximate current consumption of 115 mA.
Field Installation Guidelines
- Install the IMDSI22 in the designated ABB INFI 90, Net 90, or Symphony rack position according to system configuration documents.
- Verify field wiring voltage class before connecting external digital input circuits.
- Separate low-level control wiring from high-voltage AC sources to reduce electrical interference.
- Connect cable shields according to the cabinet grounding practice defined for the control system.
- Confirm rack addressing, module seating, and backplane contact condition before system commissioning.
- Check input channel status through the controller engineering tools after installation
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Contact: Manski Wong +86 18030205725 manski@cambia.cn
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