17-16
17-4-2. E7XXX (Load factor error)
Over duty (Average)
E7000
Over duty (Peak)
E7010
Motor over load error
E7110
Ext.1 Motor over load error
Motor current of each axis of the manipulator is monitored during operation.
The robot is stopped when over-current is detected. Excessive load
applied to the machinery elements (bearing or reduction gear) is the
probable cause of the error.
E7210
Ext. 2 Motor over load error
·
The “Over duty (Peak)” error occurs when the load factor reaches 150%.
·
The “Over duty (Average)” error occurs when average load factor reaches 125 %.
< Cautions >
•
This function works based on the measured motor current. Therefore, we assume about 10 % of
tolerance may be the case due to individual difference of motors or servo drivers and also temperature
characteristic of frictional load.
•
This function is provided to warn users that improper application of load to the robot may shorten the
service life of its machinery parts. Please be advised that the function is not to ensure duty cycle etc.
(Make sure to operate the machine within the rated values specified in the specifications, especially
load.)
17-4-3. Lithium battery error
This robot uses lithium batteries in order to retain encoder data (encoder= a device to store the position data of each axis
of the manipulator)
The message on the right appears at the power ON when
voltage of the lithium batteries are lowered. Refer to the
manual of the robot manipulator and replace the battery
with new one.
Attention!
Due to the lithium battery characteristics, sharp voltage drop may occur when it is consumed. If occurred,
the robot may not be able to maintain its required voltage to display the above warning message the next
time power is turned ON.
Make sure to replace the lithium battery periodically in order to avoid data crash.
The service-life of the lithium battery under the standard operation (10-hour per day) is approximately 2
years.
17-4-4. At power failure
The system continues its operation if the instantaneous power failure lasts 0.01 second or less.
In case that power failure lasts for 0.01 second or more, although the processing data will be retained the servo power is
shut off. Newly turn on power to the controller in order to turn on the servo power.