• Home position calibration of all the axes at the same time enables playback operations without having to check the position. • Sometimes in a system with a manipulator that has no brake, it is possible to enable playback without position checking after the absolute data allowable range error alarm occurs. However, as a rule, always check the position. Under the above special conditions, the manipulator moves as follows: After starting, the manipulator moves at low speed (1/10 of the maximum speed) to the step indicated by the cursor. If it is stopped and restarted during this motion, the low speed setting is retained until the step at cursor is reached. Regardless of cycle setting, the manipulator stops after the cursor step is reached. Starting the manipulator again then moves it at the programmed speed and cycle of the job.
Specified Point Setting
Apart from the normal home position of the manipulator, the specified point can be set up as a check point for absolute data. Use the following steps to set the specified point. If two or more manipulators or stations are controlled by one control panel, the specified point must be set for each manipulator or station.
• Be aware of safety hazards when performing the position confirmation of the specified point. Abnormality of the PG system may be cause for alarm. The manipulator may operate in an unexpected manner, and there is a risk of damage to equipment or injury
Procedure After an Alarm
If the absolute data allowable range alarm occurs, perform the followings • Reset the alarm • Turn Servo power on and confirm the specified point. After the confirmation, if the PG is found to be the cause of the alarm, perform the necessary operation, such as replacing the PG, etc. The robot position data when turning power off and on are shown in “Power ON/OFF Position Display”.
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