Industrial Controls & Automation Service

Industrial Controls & Automation Service | Mid-South | Memphis Control Center
Industrial Controls & Automation Service

Industrial Controls & Automation Service
Across the Mid-South

Production down for a controls failure is one of the most expensive events a facility faces. Memphis Control Center has been supplying industrial controls and supporting Mid-South manufacturing operations since 1967. We know the equipment, we stock the parts, and we'll get you taken care of.

Mid-South since 1967 TN · AR · MS · AL · LA Parts in stock — same-day shipping Family owned
Service Coverage: Tennessee Arkansas Mississippi Alabama Louisiana Gulf Coast

Controls Expertise Built Over 55+ Years in the Mid-South

When a PLC faults out at 2 AM, a VFD trips on an overcurrent during a production run, or a control panel fails an inspection — the clock is running. You need someone who knows the equipment and can move parts fast.

Memphis Control Center has been supplying industrial controls, instrumentation, and electrical components to manufacturing and industrial facilities across the Mid-South since 1967. We're not a call center — we're a distributor with deep application knowledge who can help you identify the right part, spec the right replacement, and get it to you the same day on most common items.

When your facility needs service coordination on a controls issue, we know the right people across Tennessee, Arkansas, Mississippi, Alabama, and Louisiana. Tell us what you have, what it's doing, and where you are — we'll get you taken care of.

55+
Years in the Mid-South
Continuously serving industrial and manufacturing facilities since 1967 from Memphis, TN.
2 PM
Same-Day Parts Cutoff
Common controls components ship same day on orders by 2 PM CT. Don't let a part hold up your production line.
5
States Covered
Tennessee, Arkansas, Mississippi, Alabama, and Louisiana — plus the Gulf Coast region.

PLC Service, VFD Repair & Industrial Controls Support

From emergency production stops to planned shutdowns and retrofits — here's the full scope of industrial controls service we support across the Mid-South.

PLC Troubleshooting & Repair

PLC faults stop production. We support troubleshooting and service coordination for all major PLC platforms, with common replacement modules available for same-day shipping.

PLC fault diagnosis & program backup
I/O module replacement & rack service
CPU replacement & program restore
Memory backup & battery replacement
Power supply replacement
PLC-to-PLC migration & platform upgrades

Control Panel Inspection & Repair

Control panels are the nerve center of any industrial process. We support inspection, repair, and upgrade of custom control panels across all industries in the Mid-South.

Control panel inspection & thermal imaging
Contactor, relay & overload replacement
Terminal block & wiring repair
Control transformer replacement
Panel upgrade & retrofit
UL 508A panel compliance service

Variable Frequency Drive (VFD) Service

VFD failures stop motors and halt production. We support VFD troubleshooting, startup, and replacement for all major drive brands across the Mid-South.

VFD fault diagnosis & parameter backup
Drive replacement & parameter restore
VFD startup & commissioning
Input/output filter & reactor service
Motor-drive system troubleshooting
Legacy drive replacement & upgrade

Instrumentation Calibration & Replacement

Process instrumentation drives every control decision your system makes. Out-of-calibration instruments cause bad product, process upsets, and safety events.

Pressure transmitter calibration & replacement
Temperature sensor (RTD/thermocouple) service
Flow meter service & calibration
Level transmitter service
4-20mA loop calibration & verification
Sensor replacement & loop commissioning

Motor Control Center (MCC) Service

Motor control centers house the starters, breakers, and controls that run your process motors. Failures here can take down entire production lines or HVAC systems.

MCC bucket inspection & maintenance
Starter & contactor replacement
Overload relay selection & replacement
Circuit breaker testing & replacement
Soft starter installation & service
MCC modernization & retrofit

Control System Upgrades & Retrofits

Aging control systems create parts availability problems, cybersecurity risks, and reliability issues. We support planned upgrades and end-of-life control system replacements.

Legacy PLC migration (SLC 500, PLC-5, etc.)
HMI replacement & screen upgrade
Drive technology upgrade (relay logic to VFD)
Panel redesign & build coordination
Shutdown window planning & parts staging
Post-retrofit startup & commissioning support
Production down for a controls failure? Call us — common components ship same day by 2 PM CT.

PLC, VFD & Control Platforms We Service

We support service and parts supply for all major industrial control platforms. If your platform isn't listed, call us — the Mid-South runs on a wide variety of equipment and we've likely seen it.

Allen-Bradley / Rockwell
ControlLogix, CompactLogix, MicroLogix 1100/1400, SLC 500, PLC-5 (legacy). PowerFlex 4M, 40, 525, 753, 755 VFDs. PanelView HMIs.
Most Common in Mid-South
Siemens
S7-300, S7-400, S7-1200, S7-1500 PLCs. SINAMICS G120, V20, S120 VFDs. SIMATIC HMI panels.
Industrial / Process
Schneider Electric / Modicon
Modicon M221, M241, M340, M580 PLCs. Altivar ATV212, ATV320, ATV630 VFDs. Magelis HMIs.
Manufacturing
Automation Direct / Click
Click series, Do-more (BRX) PLCs. GS4, GS20, GS23 VFDs. C-More HMI panels.
Light Industrial
Omron
CP1H, CP1L, CJ2M, NX1P PLCs. 3G3MX2, 3G3RX VFDs. NA, NB HMI panels.
Food & Packaging
ABB
AC500, AC500-S, AC500eco PLCs. ACS150, ACS355, ACS580, ACS880 VFDs.
Process / Industrial

Legacy system support: We frequently support facilities running Allen-Bradley SLC 500 and PLC-5, older Modicon 984 and 484, and GE Series 90 platforms. If you're running obsolete equipment, the right time to plan a migration is before a catastrophic failure — not after. We can help evaluate options and stage parts for a planned replacement.

Common Industrial Controls Problems

These are the most common controls-related production stops we support across the Mid-South — causes and where to start.

Controls Troubleshooting — Common Field Issues

Reference guide for maintenance and operations teams. Always follow your facility's LOTO procedures before working inside control panels.

PLC in fault — red fault LED, not scanning
Check the PLC diagnostic indicators — most platforms show a fault code on the front display or in the programming software when connected. Common causes: I/O module fault (field device shorted or open), memory corruption (battery failed, replace battery and reload program), power supply failure (check input voltage to PS), or hardware fault on the CPU itself. Connect with programming software first to read the fault log before pulling anything out.
Program backup critical before any module replacement. We stock common Allen-Bradley, Siemens, and Automation Direct I/O modules.
VFD trips on overcurrent (OC) fault
Overcurrent on a VFD is almost always either a mechanical load issue or a drive parameter issue. Check first: is the motor shaft free to turn (mechanical jam, seized bearing, broken coupling)? If the motor turns freely, check the acceleration ramp time in the drive parameters — too fast an acceleration on a loaded conveyor or pump causes OC. Check for a shorted motor winding (megger the motor at the drive terminals). Check drive ambient temperature — drives derate in high heat and trip on overcurrent.
VFD fault history accessible in drive parameters — saves the last several faults with operating conditions at fault time.
Motor runs but overload trips repeatedly
The overload relay is doing its job — something is drawing too much current. Check: is the load heavier than normal (product buildup, mechanical restriction, worn bearings)? Is the overload relay set correctly for the motor's FLA? Was the motor recently rewound — always verify actual FLA after a rewind, as winding characteristics may change. Check supply voltage — low voltage on all three phases increases current draw. Check for single-phasing (one leg of 3-phase supply lost) which causes the motor to draw excessive current on the remaining two phases.
We stock Allen-Bradley, Siemens, and Schneider overload relays for same-day shipping.
4-20mA signal reading incorrectly at PLC
4-20mA loop problems are almost always wiring/connection issues or transmitter failures. Check: measure current in the loop with a clamp meter — is the transmitter actually putting out the right current for the process condition? Check all terminal connections in the loop (terminals corrode, loosen, and cause erratic readings). Check the transmitter's supply voltage — 24 VDC loops need adequate voltage, accounting for loop load resistance. If the transmitter is configured via HART or software, verify the range and zero are set correctly.
We stock common pressure, temperature, and flow transmitters for quick replacement.
HMI blank screen or not communicating with PLC
HMI communication failures are most commonly a network/cable issue, not an HMI hardware failure. Check: Ethernet cable and connections between HMI and PLC or switch. Verify the IP address configuration on the HMI matches the PLC network. Check the PLC communication module — many Allen-Bradley ControlLogix and CompactLogix systems need the ENBT or EN2T module healthy for HMI comms. If the HMI is showing a connection timeout error, the cable and address are usually the culprit. If the screen is blank but backlight is on, check the HMI power supply.
PanelView and other common HMI replacements available — call with part number.
Control panel running hot — breakers tripping thermally
Thermal issues in control panels are usually caused by inadequate cooling (air conditioner or heat exchanger failed or undersized), excessive heat-generating equipment added without updating the thermal design, or blocked ventilation. Check panel cooling equipment — clean filters, verify AC unit is running, check thermostat set point. Check for any recently added drives or equipment that increased heat load. Thermal imaging of the panel interior identifies hot spots on overloaded conductors, loose connections, or failing components before they cause catastrophic failure.
Hoffman and Rittal panel cooling equipment available — call us with panel dimensions and heat load.

Industrial Controls Service Across the Mid-South

We support industrial controls and automation service throughout the following areas. Not sure if we cover your location? Call us.

Memphis
Tennessee
Nashville
Tennessee
Knoxville
Tennessee
Chattanooga
Tennessee
Jackson
Tennessee
Little Rock
Arkansas
Fort Smith
Arkansas
Jonesboro
Arkansas
Pine Bluff
Arkansas
Fayetteville
Arkansas
Jackson
Mississippi
Tupelo
Mississippi
Gulfport
Mississippi
Hattiesburg
Mississippi
Meridian
Mississippi
Birmingham
Alabama
Huntsville
Alabama
Mobile
Alabama
Montgomery
Alabama
Tuscaloosa
Alabama
New Orleans
Louisiana
Baton Rouge
Louisiana
Shreveport
Louisiana
Lake Charles
Louisiana
Lafayette
Louisiana

Controls Issue — Need Help Fast?

Tell us your platform, what it's doing, and where you're located. We'll identify the right parts and get you moving.

Frequently Asked Questions

What industrial control platforms do you support in the Mid-South?
We support service and parts supply for all major industrial control platforms — Allen-Bradley/Rockwell (ControlLogix, CompactLogix, MicroLogix, SLC 500, PLC-5), Siemens (S7-300/400/1200/1500), Schneider Electric/Modicon (M221 through M580), Automation Direct, Omron, and ABB. We also support legacy platforms including older Allen-Bradley PLC-5 and SLC 500, GE Series 90, and older Modicon systems where parts availability is becoming an issue. If your platform isn't listed, call us at (901) 458-2000 — we've likely seen it.
Do you stock Allen-Bradley PLC and VFD parts for same-day shipping?
Yes — we stock common Allen-Bradley components including I/O modules, power supplies, and common PowerFlex VFD parts for same-day shipping on orders placed by 2 PM CT from Memphis. Call us with your specific part number and we'll confirm stock. For less common or obsolete parts, we can often source quickly through our distributor network. Don't let a single I/O module or a VFD hold your production line down.
Can you help us plan a PLC migration from SLC 500 or PLC-5?
Yes — SLC 500 and PLC-5 migration planning is one of the most common requests we field from Mid-South manufacturers. Rockwell has end-of-life'd the SLC 500 and PLC-5 platforms and spare parts are increasingly hard to find. A catastrophic CPU failure on a production-critical SLC 500 with no spare on hand is a worst-case scenario. The right time to plan a migration to ControlLogix or CompactLogix is during a planned maintenance window, not after an emergency failure. Call us to discuss your current platform, production schedule, and migration options.
What causes VFD failures in Tennessee, Arkansas, Mississippi, Alabama, and Louisiana?
In our experience across the Mid-South, the most common VFD failure modes are heat-related. Drive ambient temperature in industrial facilities — especially in summer months in Tennessee, Arkansas, Mississippi, Alabama, and Louisiana — regularly exceeds drive specifications when panel cooling fails or is inadequate. The next most common causes are input power quality issues (voltage spikes from nearby motors or utility switching), dirty or obstructed cooling air paths inside the drive, and nuisance trips from incorrectly set parameters. The best protection is proper panel ventilation, input line reactors on sensitive drives, and regular inspection of the drive's air inlet filters.
Do you service controls in food processing and chemical plants?
Yes — the Mid-South has significant food processing and chemical operations in Tennessee, Arkansas, Mississippi, Alabama, and Louisiana, and industrial controls service in these environments requires awareness of sanitary requirements (food processing) and hazardous area classifications (chemical). We support controls service coordination for these industries. See our Food & Beverage and Chemical & Petrochemical service pages for more detail on those specific environments.
What should I tell you when I call about a controls issue?
The more detail the better, but at minimum: (1) What equipment is involved — PLC brand and model, VFD brand and model, or what type of control panel. (2) What it's doing — specific fault code or error message if displayed, what the equipment did right before the failure, and whether anything changed recently (new equipment installed, power outage, maintenance performed). (3) What you need — emergency parts, service coordination, or technical guidance. (4) Where you are. Call (901) 458-2000 or fill out our contact form and we'll get back to you fast.

Need Industrial Controls Service in the Mid-South?

Memphis Control Center has been supporting industrial facilities across Tennessee, Arkansas, Mississippi, Alabama, and Louisiana since 1967. Tell us what you have and what it's doing — we'll get you taken care of.

Family owned since 1967 TN · AR · MS · AL · LA Parts ship same day by 2 PM CT Free ground shipping
Industrial controls service — Mid-South

For emergencies, outside of business hours, call #901-604-7069