Yaskawa Varispeed-686SS5 CIMR-SSA - Manual (Page 37)

38
4 OPERATION
WARNING
S Only turn ON the input power supply after replacing the front cover. Do not remove the
cover while current is flowing.
Failure to observe this warning can result in an electric shock.
S When the retry function (L5-02) is selected, do not approach the inverter or the load, since
it may restart suddenly after being stopped.
(Construct machine system, so as to assure safety for personnel, even if the inverter should re-
start.) Failure to observe this warning can result in personal injury.
S Since the stop button can be disabled by a function setting, install a separate emergency
stop switch.
Failure to observe this warning can result in personal injury.
S If an alarm is reset with the operation signal ON, the inverter restarts automatically. Only
reset the alarm after verifying that the operation signal is OFF.
Failure to observe this warning can result in personal injury.
CAUTION
S Never touch the heatsink or discharging resistor since the temperature is very high.
Failure to observe this caution can result in harmful burns to the body.
S Since it is easy to change operation speed from low to high speed, verify the safe working
range of the motor and machine before operation.
Failure to observe this caution can result in personal injury and machine damage.
S Install a holding brake separately if necessary.
Always construct the external sequence to confirm that the holding brake is activated
in the event of an emergency, a power failure, or an abnormality in the inverter occur-
ing.
Failure to observe this caution can result in personal injury.
S If using with an elevator, take safety measures on the machine’s side to prevent the ele-
vator from dropping.
Failure to observe this caution can result in personal injury.
S Do not change signals during operation.
The machine or the inverter may be damaged.
S All the constants of the inverter have been preset at the factory. Do not change the
settings unnecessarily.
The inverter may be damaged. For supply voltage, follow Par. 4.2.
S Be sure to set the motor constants in accordance with the values listed on the motor name-
plate.
Failure to observe this caution may cause the torque to be insufficient, which may result in the
following motor malfunctions:
• The motor is pulled in the direction of the load.
• The motor rotates in reverse.
• The motor does not rotate.
• The motor suddenly accelerates.