Mitsubishi Electronics MD-CX522-04K to s.7K Building Set User Manual


 
5
5. Operation
WARNING
Always replace the front cover before switching input power on. While power
is on, do not remove the front cover. Doing so can cause an electric shock.
Operate the switches with dry hands. Not doing so can cause an electric
shock.
Prepare an emergency stop switch separately. The "STOP/RESET" key of
the parameter unit is valid for stopping only when the function setting has
been made. Not using a separate emergency stop switch can cause
accidents.
When the stall prevention function is activated, operation will be performed
independently of the preset acceleration/deceleration time and preset speed.
Design the machine to ensure safety if the stall prevention function is
activated. Not doing so can cause accidents.
At the occurrence of an alarm, turn off the run signal before resetting the
alarm. The drive unit will restart abruptly if you reset the alarm with the run
signal on. It can cause injury.
At occurrence of an alarm, turn off the run signal. If you do not turn off the
run signal, the alarm may be reset due to power OFF-ON at occurrence of
an instantaneous power failure or like, restarting the drive unit suddenly. It
can cause injury.
CAUTION
You can set the motor speed easily between low speed and high speed. Set
the speed command which will not exceed the permissible range of machine
design. Not doing so can cause accidents.
If the motor is rotated by the load, ensure that the motor will not exceed its
maximum speed. The drive unit may be damaged.
While power is on or some time after power-off, do not touch the heat sink
and brake resistor as they are hot. You may get burnt.
The electronic overcurrent protection function for motor overheat protection
is initialized when the drive unit is reset. Frequent resetting of the drive unit
will disable motor overheat protection. The motor may be burnt if it is
operated under overload.