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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
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
In Stock Ships Today
4.0
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
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
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
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
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
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
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
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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19 October 2026
Understanding Torque Control vs. Speed Control in Industrial Applications
Speed control and torque control are the two main operating modes used by servo drives and variable frequency drives (VFDs) to run primary AC and DC electric motors. The drive’s internal control loops govern output voltage, current, and frequency based on the approach chosen under Torque Control vs. Speed Control system topologies. Torque control modulates active stator current to provide precise rotational force independent of speed variations, while speed control prioritizes maintaining the target shaft velocity regardless of load fluctuations. To implement the best control mode, we will analyze this article as Torque Control vs Speed Control, process stability, safety, and energy efficiency; system engineers must examine load characteristics, feedback devices, and mechanical dynamics. Order Allen-Bradley Servo Drive 1398s Here The motor drive operates as a closed-loop velocity regulator in speed control mode, with the inner torque reference being adjusted by the outer control loop...
16 October 2026
AC Drive Derating: When and Why It Matters
Sizing the right AC drive can be a bit complicated. After all, you’re met with motor nameplates to match, power supply considerations, and environmental parameters. Though for operations in hotter-than-normal temperatures, at high elevations, or even with single-phase power, things get even trickier. These conditions call for derating your AC drive. Derating an AC drive means lowering its maximum continuous current or output capacity below its nameplate rating due to environmental conditions, such as high temperature, elevated altitude, and phase conversion. Today we will walk you through when it’s appropriate to derate your AC drive and why it is beneficial. Derating an AC drive is important to keep the system optimized during operation in extreme conditions. It involves lowering your drive’s current or output in increments, depending on the severity of the condition. This will help protect the drive from overheating and extend its longevity at the sacrifice of performance. This...
14 October 2026
Common Causes of Intermittent Drive Faults That Aren’t the Drive
The most time-consuming diagnostic issue in industrial motor control is intermittent drive faults. Production halts, the drive trips, a technician resets it, and it runs for hours before malfunctioning again under similar circumstances. Since the drive is the most visible component and is showing the failure code, it is natural to blame it. Replacing the drive instantly restores production. The issue is that most persistent drive problems can be traced to external factors, such as loose power connections, deteriorated cable insulation, mechanical binding, supply voltage disruptions, or interference from control signals. A mechanical or electrical root cause, rather than a drive malfunction, often causes intermittent drive failure under the same circumstances. Effective drive fault research starts with understanding these external sources and the diagnostic methods that separate them. In industrial installations, loose connections are the second most common cause of drive faults. Heat...