— 2-1 —
2. Notes to Users
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This manual describes the interface, function, and operation of the Megatorque Motor System with
the ESA25 Driver Unit.
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Before operating the Megatorque Motor System for the first time, this manual should be read
thoroughly.
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Motors, Driver Units and Cable sets described in this manual are interchangeable.
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For motors, this manual describes the standard Motor of YS and JS series only.
If your motor is not one of these, please refer to the respective specification document to which the
priority is given.
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Following notice is added to the clause of safety precautions to get your attention.
Danger : Might cause serious injuries
Warning
: Might result in injuries
Caution : Might damage the equipment (machine) and/or the load attached to the motor
( work or end effector), or might cause malfunction of the system.
2.1. Operational Remarks
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Pay special attention to the following precautions when installing, adjusting, checking and
troubleshooting Megatorque Motor System.
Caution : Make sure that Motor size, maximum torque number of Motor and Driver Unit
are the same. Refer to “3.3. Standard Combination” for the details.
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Parameters of Driver Unit are set to Motor size and maximum torque
before shipped.
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If the numbers are different, the system does not operate properly.
Caution : Do not make Cable Set shorter or longer. Changing the length may worsen
Motor and Driver Unit performance.
Caution : Do not disassemble the Motor since it is precisely adjusted and assembled. If
disassembled, it may cause abnormalities such as deterioration in accuracy
and rigidity as well as noise.
Caution : Be sure to connect the Emergency stop signal circuit to the EMST port of the
control I/O connector.
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