NOTICE!
Discharge all static electricity from your body before you operate
any of the buttons or switches inside the front cover of the SERVO-
PACK.
There is a risk of equipment damage.
DANGER!
If the safety device (molded-case circuit breaker or fuse) installed in
the power supply line operates, remove the cause before you supply
power to the SERVOPACK again. If necessary, repair or replace the
SERVOPACK, check the wiring, and remove the factor that caused
the safety device to operate.
There is a risk of fire, electric shock, or injury.
WARNING!
The product may suddenly start to operate when the power supply
is recovered after a momentary power interruption. Design the
machine to ensure human safety when operation restarts.
There is a risk of injury.
CAUTION!
– When an alarm occurs, remove the cause of the alarm and
ensure safety. Then reset the alarm or turn the power supply
OFF and ON again to restart operation.
There is a risk of injury or machine damage.
– If the Servo ON signal is input to the SERVOPACK and an alarm
is reset, the Servomotor may suddenly restart operation. Con-
firm that the servo is OFF and ensure safety before you reset an
alarm.
There is a risk of injury or machine damage.
– Always insert a Magnetic Contactor in the line between the main
circuit power supply and the main circuit power supply terminals
on the SERVOPACK so that the power supply can be shut OFF at
the main circuit power supply.
If a Magnetic Contactor is not connected when the SERVOPACK
fails, a large current may flow, possibly resulting in fire.
– If an alarm occurs, shut OFF the main circuit power supply.
There is a risk of fire due to a Regenerative Resistor overheating as
the result of regenerative transistor failure.
– Install a ground fault detector against overloads and short-cir-
cuiting or install a molded-case circuit breaker combined with a
ground fault detector.
There is a risk of SERVOPACK failure or fire if a ground fault occurs.
– The holding brake on a Servomotor will not ensure safety if there
is the possibility that an external force (including gravity) may
move the current position and create a hazardous situation
when power is interrupted or an error occurs. If an external force
may cause movement, install an external braking mechanism
that ensures safety.
Troubleshooting Precau-
tions
Sigma-7 Series SERVOPACKs
General
Safety Precautions > Safety Precautions That Must Always Be Observed
| | PROFINET Communications - SIEP YEUOC7P 02A Revision 0 | en | 35
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