Honeywell 620 Series Modules: 620-0054 VR 1 Control Module

Technical Dossier

Product Details And Specifications

Honeywell 620 Series Technical Notes

620 Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced modules within the Honeywell 620 Series platform, organized by functional category:

CPU / Control Modules

• 620-0054 VR 1: Central control module; ladder-logic execution, backplane master
• 620-0054 VR 2: Revised control module; enhanced memory addressing over VR 1
• 620-0058: High-speed CPU module; reduced scan cycle time for fast-loop applications
• 620-0001: Base processor module; early-generation 620 Series controller core
• 620-0010: Enhanced processor; expanded program memory, compatible with 620 rack

Digital Input (DI) Modules

• 620-0070: 16-point 120VAC digital input module; isolated field wiring terminals
• 620-0071: 16-point 24VDC digital input module; sinking/sourcing compatible
• 620-0072: 32-point 24VDC DI module; high-density discrete input for panel space reduction
• 620-0073: 16-point 240VAC digital input; high-voltage field device interface

Digital Output (DO) Modules

• 620-0080: 16-point 120VAC relay output module; mechanical relay contacts, 2A per point
• 620-0081: 16-point 24VDC transistor output; solid-state switching, 0.5A per point
• 620-0082: 8-point high-current relay output; 5A per contact, motor starter interface

Analog Input (AI) Modules

• 620-0090: 8-channel 4–20mA analog input; 12-bit resolution, single-ended
• 620-0091: 8-channel thermocouple input module; J/K/T/E type, cold-junction compensated
• 620-0092: 4-channel RTD input module; PT100/PT1000, 3-wire configuration

Communication / Adapter Modules

• 620-0100: Data highway adapter; peer-to-peer rack communication interface
• 620-0101: RS-232/RS-485 serial communication module; MODBUS RTU master/slave

Power Supply Modules

• 620-0020: 120/240VAC input rack power supply; 5VDC/24VDC regulated output
• 620-0021: Redundant power supply module; hot-swap capable, fault-tolerant rack power

Quality Control for the 620 Series Range

The 620 Series backplane uses a parallel bus architecture with address-decoded slot communication. Testing procedures at DriveKNMS are adapted to the specific electrical characteristics of this design. Each module undergoes: functional power-on testing at rated supply voltage (5VDC ±5%); backplane signal integrity verification using a dedicated 620 Series rack test fixture; I/O point-by-point functional verification for all digital and analog modules; for CPU modules, full ladder-logic execution test using a standardized diagnostic program to confirm scan cycle timing and memory integrity; communication module loopback testing at rated baud rates; and burn-in cycling (thermal stress) for refurbished units to screen for latent component failures. Modules that fail any test stage are quarantined, documented, and either repaired to specification or scrapped. No module is shipped without a passed test record.