- Legacy two-channel plug-in module for ABB / Hartmann & Braun Contronic systems
- Channel 1 and 2 status groups with visible Us, Uv, and Uz markings
- Front-access protection components and a rear multipin rack connector
LZ02 is an ABB / Hartmann & Braun plug-in control and interface module associated with the Contronic system family.
The module provides two visibly identified channel sections, front status indication, accessible protection components, populated electronic circuitry, and a rear interface for connection to the installed rack.
Before installation or replacement, verify the complete part-number suffix, rack position, rear connector, channel wiring, recorded indicator states, front-component ratings, supply requirements, and applicable cabinet drawings.
Availability, condition, price, and shipping time for LZ02 are confirmed during quotation.
ABB LZ02 Contronic Control Module Manuals, Product Family, 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.
- If both channels show the same fault, check the common cabinet supply, module seating, and rear connector
- If only one channel is affected, inspect its field wiring, front-access component, and associated circuit path
- Compare channel measurements with the cabinet drawings before determining that the LZ02 board has failed
- The LZ02 board uses a two-channel layout with repeated logic and interface sections
- Its circuitry includes DIP integrated circuits, resistors, capacitors, and discrete semiconductor components
- The predominantly through-hole circuit design routes both channel sections to the rear rack interface
- Record the channel 1 and 2 indicator states and front-component positions before removal
- Match the complete LZ02 suffix, rack position, rear connector, and circuit-board configuration
- Verify cabinet wiring and the applicable Contronic drawings before restoring power
- Like-for-like replacement in an existing LZ02 position within a Contronic rack
- Maintenance of documented two-channel status and interface functions in legacy Contronic cabinets
- Restoration of the associated channel 1 and channel 2 signal paths after module failure