- 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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Allen Bradley SLC 500 Repair
We offer extensive repairs for your SLC 500. We keep many spare parts in stock so that we can repair your SLC 500 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 SLC 500 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.
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Hardware issues & error codes we repair
We repair all of the following hardware issues and error codes with your SLC 500 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 SLC 500 Repairs
Browse our catalog of repairable SLC 500 parts to get a quote.
1746-ITB16
The Allen-Bradley 1746-ITB16 is a SLC 500 Digital DC Input Module. This Digital DC Input Module has a Voltage Range of 10-30 Volts DC Sink and 16 Inputs. It is intended for Fast Response Applications.
In Stock Ships Today
1746-ITV16
The Allen-Bradley 1746-ITV16 is a SLC 500 Digital DC Input Module. This Digital DC Input Module has a Voltage Range of 10-30 Volts DC Source and 16 Inputs. It is intended for Fast Response Application
In Stock Ships Today
1746-IV16
The Allen-Bradley 1746-IV16 is a SLC 500 Digital DC Input Module. This Digital DC Input Module has a Voltage Range of 10-30 Volts DC Source and 16 Inputs. It is intended for General Purpose DC Inputs
In Stock Ships Today
1746-IV32
The Allen-Bradley 1746-IV32 is a SLC 500 Digital DC Input Module. This Digital DC Input Module has a Voltage Range of 15-30 Volts DC Source and 32 Inputs. It is intended for General Purpose DC Inputs
In Stock Ships Today
1746-IV8
The Allen-Bradley 1746-IV8 is a SLC 500 Digital DC Input Module. This Digital DC Input Module has a Voltage Range of 10-30 Volts DC Source and 8 Inputs. It is intended for General Purpose DC Inputs Ap
In Stock Ships Today
1746-L1
Compatible with SLC 500 systems, this interface module operates effectively within a temperature range of 32 to 104 degrees Fahrenheit. It supports a maximum operating humidity of 80% and can be store
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1746-MPM
This module can handle a maximum current of 0.110 A at 5V DC and 0.085 A at 24V DC, with an off-state current of just 1 mA. The device draws 50 mA from the backplane and has a signal delay time of 8 m
In Stock Ships Today
1746-N2
The Allen-Bradley 1746-N2 is a SLC 500 Slot Filler.
In Stock Ships Today
1746-N2B
The 1746-N2B is a slot filler module designed for the SLC 500 series of Allen Bradley programmable logic controllers. This component serves to protect unused slots from environmental elements such as
In Stock Ships Today
1746-N3
This connector is equipped with a 40-pin socket header that ensures secure connectivity. It supports wires gauged at 24 AWG and features a crimp type for reliable contact performance. Operating condit
In Stock Ships Today
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About SLC 500
The SLC 500 series is a series of programmer controllers manufactured by Allen-Bradley that provides excellent features and abilities. These controllers can serve a wide range of application demands, including material handling, HVAC control, high-speed assembly operations, simple motion control, and small process control. The controllers use an advanced instruction set which includes indirect addressing as well as high-level math capabilities. For network connectivity, the SLC 500 controllers use onboard Ethernet, DH+, or DH 485 ports. There are also options for ControlNet, DeviceNet, and remote I/O communication. The controllers are manufactured in compact designs and they can fit in compact locations. The SLC 500 controllers offer a broad selection of I/O. They have over 60 modules to control discrete, analog, and temperature signals. They also support 3rd-party modules. For programming, the RSLogix 5000 software can be used.
The SLC 500 controllers use backup options for fault tolerance with the ControlNet module or backup communication module. This controller series offers single channel and single port controllers for regular operation. The controllers are available with a wide range of operating voltage. The operating voltage ranges from 5 to 265 Volts AC or 5 to 125 Volts DC, 24 Volts AC/DC sink voltage, and 85 to 132 Volts AC and 10 to 30 Volts DC. The programmer controllers are manufactured with different step responses which include 60 milliseconds input and 2.5 milliseconds output, 100 milliseconds input and 2.5 milliseconds output. The SLC 500 series controllers use flash, EEPROM, and Flash EPROM as backup memory. The controllers in this series use different processors like the 502, 503, 504, 505, and 501 processors. The controller series has been certified with the KC, C-Tick, UL, and CE standards. A one-year warranty is offered by the manufacturer from the date of installation.
Common issues with the SLC 500
Plastics, power supply, enclosure and mounting
Broken doors
Face plate
Mounting clips
Plastic card enclosure
Dead backplane
Connecting pins
Missing jumper caps
Power supply plastics
Power supply out 24v DC
Enclosure plastics
Enclosure backplane
Power supply LED power on indicator
Grounding terminals
Node address switches
Communications
RS-232 ports
DH+ ports
Ethernet port
DH485 ports
Faulty key switch
Lights
Flashing non recoverable fault
Solid non recoverable fault
Solid red DH+
LED indicators
I/O
Discrete output replacement relay or TRIAC
Discrete input replacement
Analog out
Analog in
RTD channel repair
Fused input/output replacement
fault/error codes
Minor Error
Channel 0 Modem Lost
Major error fault
Battery Low
Error code 21H