Error codes

What a robot’s error code means, from the maker’s own directory, with a link to the page where the maker says what to do about it.

Type the code from the teach pendant, or words from the message. Each directory is grouped the way the maker prints it: by robot generation, then by section.

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483 codes from Universal Robots · page 4 of 13

C50A53 · 58V generator deviation error

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A54 · 5V regulator too low

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A55 · 5V regulator too high

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A56 · -4V generator too low

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A57 · -4V generator too high

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A80 · Last CPU reset caused by Low-Power-Reset

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A81 · Last CPU reset caused by Window-Watchdog-Reset

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A82 · Last CPU reset caused by Independent-Watchdog-Reset

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A83 · Last CPU reset caused by Software-Reset

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issueCause given

C50A84 · Last CPU reset caused by External-Pin-Reset

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A85 · Last CPU reset caused by Brown-Out-Reset

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A99 · Wrong software on PCB

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A100 · Cable not connected

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A101 · Short circuit in robot detected or wrong robot connected to Control Box

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A102 · Voltage rising too slowly

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A103 · Voltage failed to reach acceptable level

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issue

C50A104 · The IMMI module does not respond

Universal Robots · CB3 and Earlier Models

C50 Robot powerup issueCause given

C51A0 · Processor B

Universal Robots · CB3 and Earlier Models

C51 CRC check failure on secondary bus

C51A1 · Primary screen processor

Universal Robots · CB3 and Earlier Models

C51 CRC check failure on secondary busCause given

C51A2 · Secondary screen processor

Universal Robots · CB3 and Earlier Models

C51 CRC check failure on secondary busCause given

C51A3 · Primary E67

Universal Robots · CB3 and Earlier Models

C51 CRC check failure on secondary bus

C51A4 · Secondary E67

Universal Robots · CB3 and Earlier Models

C51 CRC check failure on secondary bus

C53A1 · , max is 800mA

Universal Robots · CB3 and Earlier Models

C53 IO overcurrent detected

C53A2 · , max is 600mA

Universal Robots · CB3 and Earlier Models

C53 IO overcurrent detected

C55A23 · Safety relay error (minus connection)

Universal Robots · CB3 and Earlier Models

C55 Safety system errorCause given

C55A24 · Safety relay error (plus connection)

Universal Robots · CB3 and Earlier Models

C55 Safety system errorCause given

C55A33 · Safety relay error (a relay is stuck)

Universal Robots · CB3 and Earlier Models

C55 Safety system errorCause given

C55A34 · Safety relay error (relays are not on)

Universal Robots · CB3 and Earlier Models

C55 Safety system errorCause given

C55A50 · Voltage present at unpowered robot

Universal Robots · CB3 and Earlier Models

C55 Safety system errorCause given

C55A51 · Voltage will not disappear from robot

Universal Robots · CB3 and Earlier Models

C55 Safety system errorCause given

C55A52 · 5V, 3V3 or ADC error (5V too low)

Universal Robots · CB3 and Earlier Models

C55 Safety system errorCause given

C55A53 · 5V, 3V3 or ADC error (5V too high)

Universal Robots · CB3 and Earlier Models

C55 Safety system errorCause given

C55A90 · Bootloader error, robot voltage too low or current too high

Universal Robots · CB3 and Earlier Models

C55 Safety system error

C55A91 · Bootloader error, robot voltage too high

Universal Robots · CB3 and Earlier Models

C55 Safety system error

C55A100 · Safety violation

Universal Robots · CB3 and Earlier Models

C55 Safety system error

C55A101 · Safety Channel Error In Safety Control Board

Universal Robots · CB3 and Earlier Models

C55 Safety system error

C55A102 · Safety Channel Error In Screen

Universal Robots · CB3 and Earlier Models

C55 Safety system error

C55A103 · Safety Channel Error In Euromap67 Interface

Universal Robots · CB3 and Earlier Models

C55 Safety system error

C55A109 · Received fault message from Controller

Universal Robots · CB3 and Earlier Models

C55 Safety system error

C55A110 · Safety State is changing too often

Universal Robots · CB3 and Earlier Models

C55 Safety system error