Precautions On Operation - Fuji Electric Alpha7 VV User Manual

■ Precautions on operation

 In order to avoid unstable motions, never change adjustment radically.
It might cause injuries.
 To perform test operation, fix the servomotor and leave it disconnected from the mechanical
system. After checking the motion, connect to the machine.
Otherwise, it might cause injuries.
 The retention brake incorporated in the servo motor is not a stopping unit for assuring safety of the
machine. Install a stopping unit on the machine side to assure safety.
It might cause failure and injuries.
 When an alarm occurs, resolve the cause and assure safety before performing alarm reset and
restarting operation.
It might cause injuries.
 Stay away from the machine after power failure and power restoration because sudden restart may
be triggered. (Design the machine so that personal safety is secured even if the machine restarts
suddenly.)
It might cause injuries.
 The brake incorporated in the servomotor is for retention. Do not use it for regular braking
operation.
It might cause failures and injuries.
 Install an external emergency stop circuit so that operation can be stopped immediately and the
power can be turned off.
Otherwise, it might cause fire, failure, burns and injuries.
 Before installing to the machine and starting operation, enter parameters matching the machine. If
the machine is operated without entering parameters, the machine may unexpectedly malfunction
and cause failure.
 To use the servomotor in a vertical travel, install a safety device (Such as external brake) to prevent
the mechanical movable part from dropping in case of alarm or similar.
 If auto tuning is not used, be sure to enter the "inertia ratio."
CHAPTER 0 INTRODUCTION
CAUTION
0-7
Safety Precautions
0