Configured for discrete state sensing in AC110/160 systems, the ABB DI651 3BHT300026R1 (DI651 Digital Input Module) provides direct physical/electrical execution.

Component Identity & Model Architecture

• Base Model: DI651
• Part Number: 3BHT300026R1
• Catalog Designation: 3BHT300026R1
• System Family: ABB Advant Controller 110 / AC160 Platform

Technical Data Summary

Backplane Communication Velocity & System Interface

The DI651 module maintains synchronous signal transfers to processing units using optimized backplane bus communication velocity protocols. Built-in I/O density scaling allows rapid polling across all 16 isolated channels. Direct memory mapping ensures real-time operational response without risking backplane buffer saturation during transient load changes.

Package Inventory

• 1 x ABB DI651 3BHT300026R1 Digital Input Module
• Standard industrial protective packaging

Field Installation & Wiring Directives

• Rack Slot Engagement
  • Align upper and lower PCB edge guides precisely within the subrack slot prior to pushing the assembly inward to safeguard backplane pin connectors.
• Grounding and Shield Termination
  • Connect signal cable shields directly to field terminal rail grounding bars. Ensure low-impedance connection points to prevent electrical noise interference.
• Wiring Separation Rules
  • Maintain physical separation between 24 VDC signal wiring and high-voltage AC distribution conductors inside the enclosure ducts.

System Diagnostics & Technical FAQ

• What are the specific voltage levels defined for ON and OFF states?

  Logic state HIGH requires 15 VDC to 30 VDC, while logic state LOW corresponds to 0 VDC to 5 VDC.

• What degree of isolation is provided between individual channels?

  Channel-to-channel isolation withstands potentials up to 500 VAC.

• What level of galvanic isolation protects the backplane bus?

  Field-to-system electrical isolation is rated at 1500 VAC.

• What current range does each channel draw during active signal detection?

  Each channel draws approximately 2 mA to 5 mA depending on field voltage levels.

• What vibration frequencies can the hardware withstand?

  The module withstands field vibration test sweeps across 5 Hz to 500 Hz.

• What are the allowed storage temperature parameters?

  Storage conditions must be maintained between -40 deg C and +85 deg C (-40 deg F to +185 deg F).

• How many field inputs can be monitored on a single card?

  The module provides 16 individual digital input channels.

• What ambient humidity range is permissible during operation?

  Operating humidity must remain between 5% and 95% non-condensing.