Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - Analog Voltage and Pulse Train Reference - Manual (Page 6)

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Safety Precautions
This section describes important precautions that must be followed during storage, transportation, installation,
wiring, operation, maintenance, inspection, and disposal. Be sure to always observe these precautions thor-
oughly.
WARNING
• Never touch any rotating servomotor parts during operation.
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 equipment.
• Never touch the inside of the SERVOPACKs.
Failure to observe this warning may result in electric shock.
• Do not remove the cover of the power supply terminal block while the power is ON.
Failure to observe this warning may result in electric shock.
• After the power is turned OFF or after a voltage resistance test, do not touch terminals while the
CHARGE lamp is ON.
Residual voltage may cause electric shock.
• Follow the procedures and instructions provided in the manuals for the products being used in the
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 Σ-V absolute position detecting system is differ-
ent from that of earlier systems for 12-bit and 15-bit encoders. As a result, the infinite-length posi-
tioning system of the Σ Series must be changed for use with products in the Σ-V Series.
• The multiturn limit value need not be changed except for special applications.
Changing it inappropriately or unintentionally can be dangerous.
• If the Multiturn Limit Disagreement alarm occurs, check the setting of parameter Pn205 in the SER-
VOPACK 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 top front cover, cables, connectors, or optional items from the SERVOPACK
while the power is ON.
Failure to observe this warning may result in electric shock.
• Do not damage, pull, 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.
• Do not modify the product.
Failure to observe this warning may result in injury, damage to the equipment, or fire.
• Provide appropriate braking devices on the machine side to ensure safety. The holding brake on a
servomotor with a brake is not a braking device for ensuring safety.
Failure to observe this warning may result in injury.
• Do not come close to the machine immediately after resetting an instantaneous power interruption
to avoid an unexpected restart. Take appropriate measures to ensure safety against an unexpected
restart.
Failure to observe this warning may result in injury.
• Connect the ground terminal according to local electrical codes (100 Ω or less for a SERVOPACK
with a 100 V, 200 V power supply, 10 Ω or less for a SERVOPACK with a 400 V power supply).
Improper grounding may result in electric shock or fire.
• Installation, disassembly, or repair must be performed only by authorized personnel.
Failure to observe this warning may result in electric shock or injury.
• The person who designs a system using the safety function (Hard Wire Baseblock function) must
have full knowledge of the related safety standards and full understanding of the instructions in this
manual.
Failure to observe this warning may result in injury or damage to the equipment.