Overview
Manuals
Input Processing
Channel Integration
Commissioning Checks
Features:
- The documented signal specification is 230 V a.c., 220 V d.c., and this value must match the supplied unit.
- The documented number of channels is 8, and this value must match the supplied unit.
- The documented signal type is Current sinking, and this value must match the supplied unit.
DI821 is an ABB digital input module selected by its complete product identity and documented equipment role. Its verified data includes Signal specification 230 V a.c., 220 V d.c.; Number of channels 8; Signal type Current sinking; Redundancy No; Input voltage range, "0" 0..50 V a.c., 0..40 V d.c.. Correct selection depends on the installed hardware, interfaces and approved system configuration rather than appearance alone.
Before installing DI821, record the original nameplate, installed position, connected assemblies and relevant settings. Compare the supplied unit with the approved ABB documentation, isolate affected energy sources and complete controlled functional checks before returning the equipment to service.
The DI821 ABB Digital Input Module is listed as Active / Available from OEM. Current revision, availability and supplied scope are confirmed in the written quotation.
ABB DI821 documentation and reference links.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
DI821 performs the documented digital input module function within the Advant S800 I/O platform. Verified product data includes Signal specification 230 V a.c., 220 V d.c.; Number of channels 8; Signal type Current sinking; Redundancy No; Input voltage range, "0" 0..50 V a.c., 0..40 V d.c.; Input voltage range, "1" 164..264 V a.c., 175..275 V d.c.. These values and the complete hardware revision must match the supplied unit.
Integrate DI821 only with the approved Advant S800 I/O receiving hardware, connector or terminal arrangement and paired assemblies. Preserve all recorded settings, then verify each affected interface and diagnostic path after installation.
Before energizing DI821, inspect mounting, connector keying, wiring allocation, protective grounding and connected equipment. Review status indications and diagnostics, then complete controlled functional tests before service release.
