- Bad communication ports
- Broken selector/key switches
- Dead batteries/Bad Battery connections
- Solid or Blinking RED OK Status Light
- Solid or Blinking RED RUN Status Light
- Solid or Blinking RED Fault Status Light
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+1 (919) 205-4392
Allen Bradley PLC 3 Repair
We offer extensive repairs for your PLC 3. We keep many spare parts in stock so that we can repair your PLC 3 as efficiently and effectively as possible. Our standard repair lead time is 2-4 weeks. However, we can often repair your unit much faster if necessary. We can repair most issues with your PLC 3 and if for some reason we cannot repair your unit we will do our best to offer a refurbished unit at the repair cost, so that you can get a working unit back as soon as possible!
- 2 Year DO Supply Warranty
- Fast repairs at low costs
- No surprises or up-charges for difficult repairs
- Standard lead time of 2-4 weeks
- Extensive quality control and testing
Get a repair quote
Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's
warranty does not apply. All of our products come with DO Supply's 2-year warranty.
Learn more
Hardware issues & error codes we repair
We repair all of the following hardware issues and error codes with your PLC 3 parts.
- Bad analog inputs or ouptus
- Bad digital input or outputs
- Bad relays (stuck on/off)
- Incorrect voltages on inputs or outputs
- Incorrect current on inputs or outputs
- DF1, DH-485, DH+, Profibus, Remote I/ (RIO) failures and more!
- Intermittent communication
- Solid RED/Blinkging RED communication lights
- Devicenet, Ethernet, ControlNet, RS232 ports.
- Missing CJC Jumpers
- Incorrect readings
- Failed inputs
- Dead power supplies
- Incorrect voltage
- Broken Plastic
- Poor Connections
- Bad Slots
Browse PLC 3 Repairs
Browse our catalog of repairable PLC 3 parts to get a quote.
1770-M11
The Allen-Bradley 1770-M11 Processor Mass Storage System comes with 120 to 240 Volts AC and 1.5 Amps of maximum operating current. It has a 22.5 Megabyte Winchester Disk Drive, a hard shell micro flop
Available
1775-54AA
The 1775-54AA interface module is designed to function in indoor settings, maintaining performance between 32°F and 104°F for operation, and can be stored at temperatures up to 122°F. The module is ra
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1775-54AB
This interface module is designed for panel mounting and supports a 3-phase rated supply. The unit functions within a permissible voltage range of 97 to 264 Volts AC and can tolerate ambient temperatu
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1775-54BA
The 1775-54BA module allows for panel and 19-inch rack mounting. It operates within a power supply requirement of 115 or 230V AC, accepting a range of input voltages. This module can function effectiv
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1775-54BB
This I/O module operates effectively within a temperature range of 0 to 60 degrees Celsius. For storage, it can withstand temperatures from -40 to 85 degrees Celsius. Humidity tolerance is 5 to 95% fo
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1775-A1
This chassis rack features six module slots and requires 1.8 Amperes at 5 VDC for backplane current. It is also capable of supporting a frequency input between 50 and 60 Hertz. Safety is ensured throu
Available
1775-A2
The 1775-A2 is a robust expansion chassis featuring a 5 A current draw at 5 VDC on its backplane and 80 mA at ±15V DC. This chassis operates within a temperature range of 0 to 60°C and has an extensiv
Available
1775-A3
This processor chassis features a 1775 backplane and is designed for two different input currents: 3.0 A at 115 VAC and 1.5 A at 230 VAC. It supports 50/60 Hz input frequency and has a panel mount ori
Available
1775-AC
This expansion chassis is designed to operate within a humidity range of 5% to 95% and is suitable for environments from 0 to 60°C. It accepts a 5 V input voltage and supports a backplane current of 5
Available
1775-AD1
This model incorporates an alphanumeric display capable of showing up to 16 characters. It is designed for installation at the front of the main chassis and includes an industrial terminal port for pe
Available
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