Mechanical Operation and Maintenance Manual for ER20-1100 Industrial Robot
41
from other surrounding
equipment in the
working environment.
simultaneously operate ;
(2) The operation of peripheral
devices cause electromagnetic
interference to the robot.
(2) Check the earth wire of robot, ensure it
is effective.
The robot makes
abnormal noise in the
following two situations:
(1) Restarting after a
long-term shutdown;
(2) Start operation after
replacement of grease.
In these two situations, early stage
of robot’s operation is in
running-in state.
(1) Operate the robot in low-speed mode for
running-in and gradually resume to normal
speed if the noise is lower;
(2) If operation in low-speed mode for 1-2
days does not improve the noise issue,
internal parts may be damaged. Please
consult our after-sales department for
replacement.
Vibration
and
abnormal
noise
Other faults that may
cause vibration and
abnormal noise
(1) The cables connecting the
robot body and control cabinet are
abnormal, witch will cause
vibration because of weak and
dis-smooth signal communication;
(2) Vibration is caused by that the
abnormal external electromagnetic
environment interferes with the
operation of the control cabinet.
(1) Check whether the cables are damaged
and ensure the connectors are in good
contact;
(2) Improve the external electromagnetic
environment to ensure the normal operation
of the control cabinet.
Shaking
of robot
body
Some parts of the body
can be shaken by hand in
power-off state.
Long-time operation and possibly
happened abnormal operation
state will cause the following
faults:
(1) Screws in key connection parts
are loosened;
(2) The internal parts of the robot
are damaged. For example, the
gears and bearings are worn or
damaged, resulting in a large
sideshake.
(1) Check whether the screws at the
following connection points are loosened,
which including the reducer, the motor
connection, the robot base, the joints, and
the end load mounting flange. Use a torque
wrench within the required torque to tighten
the screws;
(
2
)
If any damaged component is found,
please consult our after-sales service
department for replacement.
Motor
overheats
The motor is overheated
because of the influence
from the environment:
(1) The temperature of
the working environment
is more high;
(2) The motor is
covered.
High ambient temperature, or that
the motor is covered, both will
affect the heat dissipation and
cause overheating.
(1) Decrease the ambient temperature. If the
operation environment has heat source, the
protective clothing should be configured to
isolate the heat source;
(2) Improve the ventilation conditions
around the motor.
The motor is overheated
because of inappropriate
The three conditions will all lead
to the motor working in an
Properly set parameters and program
commands according to the operation