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DO Supply is a global leader in replacement parts for industrial automation equipment. Our mission is to elevate the standard of expert support, speed, and reliability for your need-it-now automation replacement and repair needs. Whether it's PLCs, drives, motors, HMIs, or more, you can count on us for the best service and fastest solutions.

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Shop a large selection of manufacturers and product lines.

IC693CPU374
IC693CPU374
This CPU module supports Ethernet communication and is equipped with services for PLC programming and configuration. It operates at a processor speed of 200 MHz and includes one IP address with two RJ
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4.0
IC200CHS022
IC200CHS022
Belonging to the Versamax series, this box-style I/O carrier supports mounting for a single I/O module. It accommodates 36 terminals, with options for solid or stranded wire configurations. The module
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4.7
IC200EBI001
IC200EBI001
This ENIU features support for slave applications and various I/O module control tasks, equipped with five status LEDs for real-time monitoring. It can be mounted on DIN rail and connects power direct
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4.7
IC695CPE305
IC695CPE305
The IC695CPE305 RX3i CPU is a central processing unit manufactured by GE Fanuc. It comes with a single slot, 8 local racks, 5 MB of user memory, 1.1 GHz of processor speed, and RS-232 embedded serial
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4.6
IC200CPUE05
IC200CPUE05
This CPU supports Ethernet communication at a data rate of 10 Mbps and includes two serial ports with RS-232 and RS-485 options. Configuration is flexible with a memory capacity of 128 KB, and the mod
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4.8
IC695CHS012
IC695CHS012
This universal backplane accommodates up to 12 slots and is compatible with various power supply types, including AC and DC. It features provisions for both expansion and remote backplane connections,
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4.9
IC200PNS001
IC200PNS001
The GE Fanuc IC200PNS001 module is a PROFINET Scanner (PNS) module from the Versamax series. It has a power consumption of 0.6 Amps at 5 Volts DC and two 10/100 Mbps copper shielded RJ-45 media connec
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4.6
IC695PSD040
IC695PSD040
The GE Fanuc Automation IC695PSD040 module is a power supply module. It operates with a voltage range between 18 and 33 Volts DC.
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5.0
IC693CPU364
IC693CPU364
The IC693CPU364 module is a CPU module with an Etherent interface. The IC693CPU364 module is compatible with the GE Fanuc Series 90-30 PLCs.
In Stock Ships Today
4.7
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Latest updates from the experts

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7 October 2026

What Happens Inside a VFD During a Power Sag?

A voltage sag on the incoming AC line may seem like a minor issue with little effect on your drive, but this isn’t always true. Every frequency inverter has a DC bus that briefly absorbs fluctuations, deciding whether the sag causes a trip, an alarm, or lets the drive ride through the event. This article covers each part of that process, drawing on Schneider Electric’s insight into where the DC bus voltage comes from, and explains the internal chain from rectifier to DC bus and its protection, with examples of products offering this capability. A Diagram of Voltage Sag A rectifier converts incoming three-phase AC to DC and charges the capacitors on the DC bus . For a typical diode-rectifier drive, the DC bus is roughly 1.35–1.41 times the RMS line voltage, depending on drive design and operating conditions. So where the input voltage is normally 480 V, the DC bus would read around 677 V. This lines up with figures quoted by Schneider Electric, who state that a 480V system has an...

5 October 2026

Drive Fault History: The Most Valuable Troubleshooting Tool Nobody Uses

A failure history log is kept on file by all contemporary variable frequency drives. Every problem the drive has encountered is recorded, together with the precise operating parameters at the time of each trip: output current, DC bus voltage, output frequency, heatsink temperature, and, most of the time, a timestamp that puts each incident in chronological order. For a maintenance engineer in front of a stopped machine, this record is the most comprehensive diagnostic data source. In industrial maintenance, it is also the diagnostic tool that is most often disregarded. For example, the fault history is cleared before it can be read, or the reset button is pressed before data can be recorded. This article covers what drive fault history contains, how to interpret it properly, and why the quickest route from a tripped drive to a permanently fixed defect is to use it methodically. Most drives keep some form of fault history, but the amount of stored information depends on the model. This...

2 October 2026

When a Soft Starter Is the Wrong Choice

Motor control comes in all different shapes and sizes depending on its use case and feature set. Soft starters, for example, are a fantastic solution when the goal is to bring a motor up to speed gradually without subjecting your equipment to the sudden shock of an across-the-line start. By gradually controlling the power delivered to the motor during startup, they can reduce starting current, limit mechanical shock, and provide a smoother acceleration. However, they aren’t a fit for every motor application. The biggest limitations usually appear after the motor starts. Once acceleration is complete, a soft starter typically supplies the motor at full line conditions, often through a bypass contactor, and provides far less continuous motor control than a variable-frequency drive. There are also applications where a soft starter adds complexity and expense without providing much benefit. Understanding these situations can make the difference between choosing a controller that fits the...