How long does 20-COMM-L repair take?

Standard turnaround for 20-COMM-L repair is 5–7 business days from the day we receive the unit. Rush service (2–3 business days) is available — contact us before shipping.

Does the 20-COMM-L repair come with a warranty?

Yes. All 20-COMM-L repair, refurbished, and brand new units sold by Flexa Systems include a 2-year warranty covering parts and labor. Units are fully tested before shipping.

Can I get a quote before sending my 20-COMM-L?

Yes. Use the Get Quote for Repair button on this page or contact us directly. We provide a free diagnostic estimate once we receive the unit. No repair charges if you decide not to proceed.

ALLEN BRADLEY

20-COMM-L

SKU: 2100000002726

$690.00

2-Year Warranty

Free Diagnostics

5–7 Day Turnaround

Nationwide Service

The ALLEN BRADLEY 20-COMM-L is a specialized communication module engineered to extend networked control capabilities across variable frequency drive installations and distributed automation systems. Built for integration within PowerFlex and CompactLogix ecosystems, this module enables real-time data exchange and command signaling between VFDs and programmable logic controllers over industrial communication protocols. The 20-COMM-L repair service addresses communication faults, protocol timeouts, and firmware degradation that commonly occur in harsh factory environments with electrical noise and temperature fluctuations. Organizations requiring ALLEN BRADLEY 20-COMM-L repair can depend on module-level troubleshooting to restore EtherNet/IP or DeviceNet connectivity without replacing entire drive systems. For operations seeking cost-effective alternatives, 20-COMM-L refurbished units undergo full functional validation and deliver equivalent performance to OEM originals at a fraction of replacement cost.

Technical Specifications

Part Number	20-COMM-L
Manufacturer	ALLEN BRADLEY

Compatibility

The 20-COMM-L compatible with ALLEN BRADLEY PowerFlex 40, PowerFlex 50, and PowerFlex 70 variable frequency drives operating over EtherNet/IP or DeviceNet industrial networks. ALLEN BRADLEY 20-COMM-L integration supports ControlLogix, CompactLogix, and SoftLogix platforms running Studio 5000 Logix Designer, enabling seamless I/O mapping and tag-based messaging for coordinated multi-axis motion control and process automation. The module is interchangeable with legacy 20-COMM-D variants in retrofit applications and maintains backward compatibility with 1336 PLUS II motion control architectures when properly configured for legacy protocol translation.

Service Options

Repair Service

Ship your faulty 20-COMM-L to our facility. Our certified technicians perform IGBT testing, capacitor inspection, gate driver diagnostics, and full load testing. Typical turnaround: 5–7 business days. 2-year warranty included.

Refurbished

In-stock ALLEN BRADLEY 20-COMM-L variable frequency drive, reconditioned to OEM specifications and verified under load. Ships immediately. 2-year warranty included.

Brand New

New 20-COMM-L in original ALLEN BRADLEY packaging. Full manufacturer warranty applies. Contact us to confirm availability and lead time.

Common Failure Modes

Communication timeout errors during EtherNet/IP packet transmission due to corrupted MAC address or IP configuration memory degradation.
Intermittent DeviceNet arbitration failures caused by capacitor aging on the communication interface PCB, resulting in bus collision retries and node dropout.
Firmware checksum mismatch preventing module initialization after power cycling, typically triggered by incomplete flash memory writes during online updates.

Frequently Asked Questions

Is the 20-COMM-L compatible with older PowerFlex 40P drives, and can it replace a failed 20-COMM-D module?

The 20-COMM-L is functionally compatible with PowerFlex 40P, 40, and 50 series drives when configured for the appropriate protocol; however, 20-COMM-L replacement for 20-COMM-D units requires firmware version verification and parameter migration to avoid communication incompatibility. The PowerFlex 70 and Kinetix 5500 servo drives also support 20-COMM-L modules, making cross-platform swaps viable in mixed-equipment facilities.

How do I determine if a failed 20-COMM-L should be repaired or replaced?

A 20-COMM-L repair is economically justified when the module exhibits protocol errors, timeout events, or soft faults such as corrupted configuration data—conditions that respond to firmware reload or capacitor replacement without structural PCB damage. ALLEN BRADLEY 20-COMM-L units showing physical damage (burned components, cracked solder joints, or connector corrosion) or persistent memory corruption typically warrant replacement; consult diagnostic LED codes or perform an offline module self-test to confirm repairability before sending units to service.

Where can I get 20-COMM-L repair service with a warranty?

Flexa Systems provides professional 20-COMM-L repair service from our facility in Lewisville, TX, serving customers nationwide. Standard turnaround is 5–7 business days from receipt and all repaired units ship with a 2-year warranty. Rush service (2–3 business days) is also available.

Flexa Systems specializes in ALLEN BRADLEY 20-COMM-L variable frequency drive repair, supplying refurbished and new units backed by a 2-year warranty. All drives are load-tested before shipping. Serving industrial facilities nationwide from Lewisville, TX.

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