Alarm and error code references for the robot brands we service most — ten global names and seven leading Chinese brands — written from real repair work by Henghuan engineers in Guangzhou (Canton). Every entry explains what the code means, what actually causes it, and the step-by-step fix we use on site.
R-30iA / R-30iB / R-30iB Plus · SRVO / SYST / MOTN codes
2 field-verified codes with causes & step-by-step fixes. Open library →
KRC2 / KRC4 / KRC5 (KSS) · KSS message codes 1xxx-26xxx
17 field-verified codes with causes & step-by-step fixes. Open library →
IRC5 / OmniCore (RobotWare) · RobotWare event codes
18 field-verified codes with causes & step-by-step fixes. Open library →
DX100 / DX200 / YRC1000 · Alarm codes + SERVOPACK A.xxx faults
15 field-verified codes with causes & step-by-step fixes. Open library →
CB3 / e-Series (UR5/UR10/UR16/UR20) · Protective stops & C-code errors
14 field-verified codes with causes & step-by-step fixes. Open library →
E / F / C series (AS language) · P / W / E / D error classes
15 field-verified codes with causes & step-by-step fixes. Open library →
CS8 / CS9 (VAL3) · CS8/CS9 event log faults
14 field-verified codes with causes & step-by-step fixes. Open library →
RC90 / RC700 (EPSON RC+) · 4xxx / 5xxx / 9xxx error numbers
15 field-verified codes with causes & step-by-step fixes. Open library →
AW / FD series · Servo, encoder & CPU alarms
16 field-verified codes with causes & step-by-step fixes. Open library →
SmartController (ACE / Viper / Cobra) · Status panel codes & V+ errors
14 field-verified codes with causes & step-by-step fixes. Open library →
China-built robots are everywhere in the Pearl River Delta — we repair and commission ESTUN, INOVANCE, EFORT, JAKA, AUBO, ROKAE and Dobot machines every week.
ERC / ED3L controller + ESTUN servo · Servo A.xx codes + ERC controller alarms
15 field-verified codes with causes & step-by-step fixes. Open library →
IRCB500 / IRCB501 + SV660 servo · Er.xxx servo faults + 0x90xx controller alarms
15 field-verified codes with causes & step-by-step fixes. Open library →
EC2-S controller + TSINO drives · TSINO 1xxx drive + system/major/minor/warning codes
14 field-verified codes with causes & step-by-step fixes. Open library →
Zu / JAKA Pro cobots (APP) · 0x0000xx joint + 0x0F01xx system events
14 field-verified codes with causes & step-by-step fixes. Open library →
i-series / C-series (ARCS SDK) · JOINT_ERR 10xxx + system/safety 2xxx-5xxxx
15 field-verified codes with causes & step-by-step fixes. Open library →
xCore (XB / CR / NB series) · 10xxx servo + 15xxx safety + xCore 5xxxx/6xxxx
12 field-verified codes with causes & step-by-step fixes. Open library →
Magician / MG400 / M1 / CR (DobotStudio) · 0x planning / motion / limit alarms
17 field-verified codes with causes & step-by-step fixes. Open library →
Henghuan is an independent industrial robot service company in Guangzhou — repair, commissioning, and used/new robot trading across all major brands.
Send the alarm code, robot model and a photo of the pendant — an engineer calls back the same day.
Pearl River Delta within 30 min-3 h, mainland China 1-3 business days, worldwide 2-5 business days.
Every used robot we sell is checked against exactly these fault patterns before delivery.
