Safety Instructions
10
Precautions for handling exceptions
Danger
When the safety devices (wiring circuit breakers and fuses) on the power cord are in action, switch on the
servo drive only after finding out and eliminating the events that result in their action. In addition, replace or
repair the servo drive and check the wiring to effectively eliminate the events that result in the actions of
safety devices.
Otherwise it may cause fire, electric shock, or injury.
Warning
When power is restored after a transient power outage, a sudden restart may occur. Use a mechanical design
that ensures that personal safety is not endangered during restart.
Otherwise it may result in injury.
Note
When a fault occurs, first eliminate the trigger event of the alarm to ensure safety. Then reset the alarm, or
turn the power back on and restart the servo drive.
Otherwise it could result in injury or mechanical damages.
Be sure to connect an electromagnetic contactor between the main circuit power supply and the main circuit
power terminal of the servo drive. The contactor is designed to cut off the power on the main circuit power
supply side of the servo drive.
If the servo drive fails, continued flow of large currents can cause a fire if the electromagnetic contactor is not
connected.
When a failure occurs, cut off the main circuit power supply.
Otherwise, failure of the regeneration circuit, etc., will cause the regeneration resistor to overheat and cause a
fire.
Install a residual current circuit-breaker for overload and short circuit protection, or a residual current
circuit-breaker for grounding short circuit protection combined with a wiring circuit breaker.
Otherwise, a ground short circuit, if it happens, can cause the servo drive failure or a fire.
The brake mechanism of the servo motor is insufficient to guarantee safety in a dangerous state of movement
under external force (gravity, etc.) when the power supply is cut off or abnormally stopped.
Therefore, it is
important to set up an external brake mechanism to guarantee safety.
Summary of Contents for CoolDrive Series
Page 29: ...Preface 17 T2 model ...
Page 30: ...Preface 18 T3 model ...
Page 31: ...Preface 19 T4 model ...
Page 230: ...Monitoring 218 ...
