# Universal Robots e-Series Control Box

Controllers · `e-Series Control Box` · verification: source checked

The e-Series Control Box is the cabinet that houses the controller electronics for a UR5e robot arm. It supplies the arm and tool connections, provides 16 digital inputs, 16 digital outputs, 2 analog inputs and 2 analog outputs, and connects to other equipment over MODBUS TCP, EtherNet/IP and PROFINET. It runs from a 100-240 VAC supply and is specified for cleanroom use to ISO Class 6.

## Specification

| Property | Value |
|---|---|
| Kind | robot controller |
| Width | 460 mm |
| Height | 449 mm |
| Depth | 254 mm |
| Input voltage | 100-240 VAC, 47-440 Hz |

## Connected

- Alarm codes: [C263A2 Calibration Invalidated](https://machineschema.com/alarm/ur-c263a2.md), [C263A21 Index Mark Validation Failed](https://machineschema.com/alarm/ur-c263a21.md), [C263A26 Index Out of Range](https://machineschema.com/alarm/ur-c263a26.md), [C263A27 Index Drift Log Failure](https://machineschema.com/alarm/ur-c263a27.md), [C263A38 Time Sanity Check Failed](https://machineschema.com/alarm/ur-c263a38.md), [C263A39 Motor Encoder CRC Invalid](https://machineschema.com/alarm/ur-c263a39.md), [C263A41 Invalid Sample Rate High](https://machineschema.com/alarm/ur-c263a41.md)
- Manufacturer: [Universal Robots](https://machineschema.com/manufacturer/universal-robots.md)
- Protocols: [EtherNet/IP](https://machineschema.com/protocol/ethernet-ip.md), [Modbus TCP](https://machineschema.com/protocol/modbus-tcp.md), [PROFINET](https://machineschema.com/protocol/profinet.md)

## Safety

- 17 safety functions; PLd Category 3 in accordance with EN ISO 13849-1.
- Power source range 100-240 VAC, 47-440 Hz.
- Rated short-circuit current (SCCR) 200 A.

## Study notes

- Control Box I/O: 16 digital in, 16 digital out, 2 analog in, 2 analog out.
- Control Box I/O power supply: 24 V 2 A inside the Control Box.
- Communication interfaces listed: MODBUS TCP and EtherNet/IP adapter, PROFINET, USB 2.0, USB 3.0.
- Short-circuit current rating (SCCR) of 200 A.
- Noise level of the Control Box is less than 50 dB(A); the robot arm is less than 65 dB(A).
- Cleanroom classification: Robot arm ISO Class 5, Control Box ISO Class 6.
- Teach pendant to Control Box cable is 4.5 m (177 in).
- Robot arm to Control Box cables offered in standard (PVC) 6 m or 12 m and Hiflex (PUR) 6 m or 12 m.
- The document lists an IP classification of IP54 for the UR5e table; it is not attributed specifically to the Control Box.
- The 5 kg payload, 850 mm reach and 6 rotating joints belong to the UR5e robot arm, not to the Control Box.

## Sources

1. [Technical Specifications UR5e](https://www.universal-robots.com/manuals/EN/HTML/SW5_21/Content/prod-usr-man/complianceUR5e/H_g5_sections/appendix_g5/tech_spec_sheet.htm) (accessed 2026-10-26)

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