Yaskawa Sigma-5 Series User Manual:: For Use with Large-Capacity Models-Setup. Rotary Motors - Manual (Page 8)

viii
Safety Precautions
These safety precautions are very important. Read them before performing any pro-
cedures such as checking products on delivery, storage and transportation, installa-
tion, wiring, operation and inspection, or disposal. Be sure to always observe these
precautions thoroughly.
WARNING
• Never touch any rotating motor parts while the motor is running.
Failure to observe this warning may result in injury.
• Before starting operation with a machine connected, make sure that an
emergency stop can be applied at any time.
Failure to observe this warning may result in injury or damage to the product.
• Never touch the inside of the SERVOPACKs and the converters.
Failure to observe this warning may result in electric shock.
• Do not remove the front cover of the power supply terminals while the
power is ON.
Failure to observe this warning may result in electric shock.
• Immediately after the power is turned OFF or after a voltage resistance
test, do not touch terminals while the CHARGE lamp is ON. For details on
the charging time of the main circuit’s capacitor, refer to 3.2 Discharging
Time of the Main Circuit’s Capacitor.
Residual voltage may cause electric shock.
• Follow the procedures and instructions provided in this manual for trial
operation.
Failure to do so may result not only in faulty operation and damage to equipment,
but also in personal injury.
• The output range of the rotational serial data for the absolute position
detecting system used for Σ-V large-capacity servo drives is different from
that of earlier systems for 12-bit and 15-bit encoders. As a result, the infi-
nite-length positioning system of the Σ servo drives must be changed for
use with Σ-V large-capacity servo drives. Be sure to make the system mod-
ifications.
• The multi-turn limit value need not be changed except for special applica-
tions.
Changing it inappropriately or unintentionally can be dangerous.
• If the Multi-turn Limit Disagreement alarm occurs, check the setting of
parameter Pn205 in the SERVOPACK to be sure that it is correct.
If Fn013 is executed when an incorrect value is set in Pn205, an incorrect value
will be set in the encoder. The alarm will disappear even if an incorrect value is set,
but incorrect positions will be detected, resulting in a dangerous situation where
the machine will move to unexpected positions.
• Do not remove the front cover, cables, connectors, or optional items from
the front of the SERVOPACK and the converter while the power is ON.
Failure to observe this warning may result in electric shock or damage to the prod-
uct.
• Do not damage, press, exert excessive force on, or place heavy objects on
the cables.
Failure to observe this warning may result in electric shock, stopping operation of
the product, or fire.