Universal Robots 2014350001, Service Manual, Page: 115 / 238

C55A120 Robot current is too
high while
emergency stopped
C55A121 Robot current is too
high while safeguard
stopped
C56A Overvoltage
shutdown Voltage exceeded 55V a) Check Energy Eaters cable
and connections.
b) Check Energy.
c) Replace Energy Eater
C57A Brake release failure a) Check Brake, solenoid.
b) Check TCP configuration,
payload and mounting
settings
C57A1 Joint did not move or
motor encoder is not
functioning
C57A2 Large movement
detected during
brake release
C57A3 Robot was not able
to brake release, see
log for details
C58A Motor encoder not
calibrated
C59A Overcurrent
shutdown Overcurrent in joint.
Argument = Current in
Amps a) Check for short circuit.
b) Do a Complete rebooting
sequence.
c) If this happens more than
two times in a row, replace
joint
C60A Energy surplus
shutdown The power supply is
sending energy to the
energy eater a) Ensure power grid is not
delivering more than 48V
b) Measure robot energy
input
c) Contact your local
Universal Robots service
provider for assistance.
C61A Idle power
consumption to high The system is drawing
more power than expected
while idle a) Check Energy Eaters
cables and connections
b) Check Energy Eater
c) Replace Energy Eater
Service Manual 109 UR5
7. Troubleshooting
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