10M Cable/plug F FANUC Robot A05b-2256-C113#EMH/EAW/ESW teach pendant connector

FANUC · Robot Teach Pendant · Connection Cable · In stock

What Is the FANUC A05B-2256-C113 Teach Pendant Cable?

The FANUC A05B-2256-C113 is a 10-meter connection cable assembly designed to link a FANUC robot teach pendant to the robot controller. This cable is compatible with EMH, EAW, and ESW series FANUC teach pendants and carries both power and communication signals between the handheld programmer and the robot's main processor. In a production environment, a damaged or intermittent teach pendant cable means the operator cannot jog the robot, modify programs, or recover from fault conditions — effectively bringing the cell to a halt.

In short: This is a 10-meter replacement connection cable for FANUC EMH/EAW/ESW teach pendants. If your pendant loses communication or displays intermittent connection errors, a worn cable is the most common root cause — replace it before it strands your operator at the worst possible moment.

What to Check Before Ordering a Replacement

1. Confirm Your Teach Pendant Model

What to verify: The A05B-2256-C113 cable is keyed for FANUC EMH, EAW, and ESW pendant families. The connector shell on these pendants uses a specific pin count and orientation.
Why it matters: FANUC has produced several pendant generations (including the newer A05B-2518 series). Each uses different connector styles, and cables are not cross-compatible across generations.
What to do: Check your pendant's model plate — usually located on the back of the pendant housing. If the model starts with A05B-2256, this cable is designed for your unit. If your pendant is a different series, send the model number to our team for a compatibility check.

2. Verify Cable Length Requirements

What to verify: This listing is for the 10-meter variant. Measure the distance from your robot controller's teach pendant port to the furthest point the operator needs to reach around the robot cell.
Why it matters: A cable that is too short forces the operator into awkward positions near active machinery. A cable that is excessively long creates trip hazards and is more prone to being driven over by AGVs or caught in fixtures.
What to do: Add 1.5 to 2 meters to your measured distance as a service loop allowance. If 10 meters does not meet your needs, please inquire about other length options.

3. Inspect the Connector Condition on Both Controller and Pendant Sides

What to verify: Before installing a new cable, examine the mating connectors on both the teach pendant and the robot controller for bent pins, corrosion, or debris in the socket.
Why it matters: A new cable will not resolve communication issues if the underlying problem is a damaged pin on the controller-side receptacle. In the worst case, a bent pin on the controller can damage the new cable's plug on first insertion.
What to do: Use a flashlight to inspect each socket position. Look for any pin that appears shorter, bent, or discolored compared to its neighbors.

Key Specifications

Symptoms of a Failing Teach Pendant Cable

• Intermittent "Pendant Disconnected" alarms: The controller loses communication with the pendant for a few seconds, then reconnects. Often triggered when the operator moves the pendant or the cable flexes at a specific point.
• Dead or frozen pendant screen: The pendant powers on (backlight visible) but the display does not update or respond to key presses. Can indicate a break in the data lines while power conductors remain intact.
• Emergency stop faults when moving the cable: If an E-stop is triggered simply by repositioning the pendant cable, suspect an internal conductor break that momentarily opens the E-stop circuit.
• Visible jacket damage: Cuts, kinks, or areas where the outer insulation has been worn through to expose inner conductors or shielding.
• Connector wiggle or loose fit: A connector that does not seat firmly or can be rocked side-to-side when fully inserted indicates worn locking tabs or a deformed shell.

Frequently Asked Questions

How do I know if my teach pendant cable is the problem and not the pendant itself?

The fastest diagnostic is a substitution test — if you have access to a known-good cable, swap it in. If the problem disappears, the original cable is at fault. If you do not have a spare cable available, visually inspect the cable along its full length, paying particular attention to the strain relief boots at both connector ends (where most internal breaks occur due to repeated flexing). Wiggle each connector while watching the pendant display — if the screen flickers or the controller registers a fault, the cable has an internal break.

Can I repair a damaged teach pendant cable instead of replacing it?

Field repair of robot teach pendant cables is generally not recommended. These cables contain multiple shielded signal pairs and E-stop safety circuit conductors inside a single jacket. Splicing individual conductors changes the cable's impedance characteristics and compromises the shielding. More importantly, any repair to the E-stop circuit conductors must maintain the safety integrity of the dual-channel emergency stop system. For production-critical equipment, replacement is the safer and more reliable path.

What is the difference between the C113 cable and other FANUC teach pendant cables?

The A05B-2256 series cables are designed for the EMH/EAW/ESW generation of FANUC pendants. The C113 suffix in the part number identifies the specific cable length and connector configuration variant. Newer FANUC pendant families (such as the A05B-2518 series used with the iPendant) use a completely different connector system. The physical keying prevents incorrect mating, so you cannot accidentally plug a C113 cable into an incompatible pendant — it simply will not fit.

Is this an original FANUC part or an aftermarket equivalent?

This listing is for a genuine FANUC-manufactured cable assembly. We do not substitute aftermarket or third-party cables unless explicitly noted in the listing. The cable ships in factory packaging with FANUC labeling. If you require documentation for your purchasing department, contact us and we can provide available certificates of conformance.

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