Description
The Reliance Electric 586-501-109 is a legacy industrial control component originally manufactured by Reliance Electric, now part of the Rockwell Automation portfolio. Market sources identify this part number in two primary functional variants: a 48-point high-density digital I/O board for the AutoMax rack system, and a programmable temperature transmitter/signal conditioner for field instrumentation applications .
As a field-replaceable unit (LRU) defined by its host equipment, the 586-501-109 does not function as a standalone device—its specific electrical behavior and configuration depend entirely on the bill of materials of the original Reliance drive or controller system in which it was installed . This is the key distinction that maintenance engineers must understand before ordering.
Application Scenarios
Picture a 20-year-old paper mill with a Reliance MaxPak DC drive regulating the main winder motor. The drive suddenly faults out with a board-level failure code. Inside the drive cabinet, a maintenance technician locates the faulty card—printed on the PCB is the number 586-501-109. The entire production line is down. The mill’s engineering team needs a direct replacement to get the winder back online within hours, not weeks .
Or consider a petrochemical processing unit relying on a Reliance AutoMate controller to execute critical temperature interlocks. The control room alarm panel flashes a transmitter fault for a reactor cooling water line. The field engineer confirms the loop is broken and traces the issue to a failed Reliance Electric 586-501-109 signal conditioner in the field junction box. Replacing that specific LRU is the only path to restoring process visibility without reprogramming the entire control loop .
In both cases, the 586-501-109 solves the same problem: it is the “index code” that connects a failed component to its functional replacement. The purchasing decision is simple—find the part number on the broken board, order that exact number, and swap it in. No configuration utilities, no firmware mismatches, no guessing games. It works because it is the same physical board that the host equipment’s firmware expects to see on that particular backplane slot or terminal position .
Parameter
| Main Parameters | Value / Description |
|---|---|
| Product Model | 586-501-109 |
| Manufacturer | Reliance Electric (now Rockwell Automation / Baldor Electric) |
| Product Category | Field-Replaceable Unit (LRU) / Industrial Control Spare Part |
| Functional Variants | 48-channel digital I/O board OR programmable temperature transmitter |
| I/O Points (I/O variant) | 48 points, configurable DI/DO, 8 points per group |
| Signal Type (I/O variant) | 24 Vdc, source/drain selectable, optocoupler isolation 2.5 kV |
| Output Capacity (I/O variant) | 0.5 A/point, 4 A/group, 24 A total (externally powered) |
| Response Time (I/O variant) | Input 1 ms, Output 0.5 ms (resistive load) |
| Input Signal (Transmitter variant) | Thermocouple or RTD |
| Output Signal (Transmitter variant) | 4-20 mA current loop, loop-powered (24 V DC) |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -40°C to +100°C |
| Dimensions (I/O variant) | 3 × 19.1 × 34.3 cm |
| Weight | 0.92 kg – 1.4 kg (varies by variant) |
| Condition | New Surplus / Professionally Tested Stock |
| Country of Origin | United States |
| Lifecycle Status | Discontinued by manufacturer; supplied as new surplus inventory |