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Warnings and cautions, Warning – Yaskawa DeviceNet Option Card CM05x User Manual

Page 7

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Introducing the DeviceNet Network 1-2

Warnings and Cautions


This Section provides warnings and cautions pertinent to this product that, if not heeded, may result in personal
injury, fatality, or equipment damage. Yaskawa is not responsible for consequences of ignoring these instructions.

WARNING

YASKAWA manufactures component parts that can be used in a wide variety of industrial applications. The
selection and application of YASKAWA products remain the responsibility of the equipment designer or end
user. YASKAWA accepts no responsibility for the way its products are incorporated into the final system design.
Under no circumstances should any YASKAWA product be incorporated into any product or design as the
exclusive or sole safety control. Without exception, all controls should be designed to detect faults dynamically
and to fail safely under all circumstances. All products designed to incorporate a component part manufactured
by YASKAWA must be supplied to the end user with appropriate warnings and instructions as to that part’s safe
use and operation. Any warnings provided by YASKAWA must be promptly provided to the end user. YASKAWA
offers an express warranty only as to the quality of its products in conforming to standards and specifications
published in the YASKAWA manual. NO OTHER WARRANTY, EXPRESS OR IMPLIED, IS OFFERED.
YASKAWA assumes no liability for any personal injury, property damage, losses, or claims arising from
misapplication of its products.

WARNING

• Read and understand this manual before installing, operating, or servicing this Drive. All warnings,

cautions, and instructions must be followed. All activity must be performed by qualified personnel. The
Drive must be installed according to this manual and local codes.

• Do not connect or disconnect wiring while power is on. Do not remove covers or touch circuit boards

while the power is on. Do not remove or insert the Digital Operator while power is on.

• Before servicing, disconnect all power to the equipment. The internal capacitor remains charged even

after the power supply is turned off. Status indicator LEDs and Digital Operator display will be
extinguished when the DC bus voltage is below 50VDC. To prevent electric shock, wait at least 5 minutes
after all indicators are OFF and measure the DC bus voltage level to confirm that it is at a safe level.

• Do not perform a withstand voltage test on any part of the unit. This equipment uses sensitive devices

and may be damaged by high voltage.

• Drive is not suitable for circuits capable of delivering more than the specified RMS symmetrical amperes.

Install adequate branch short circuit protection per applicable codes.
Refer to the specification. Failure to do so may result in equipment damage and/or personal injury.

• Do not connect unapproved LC or RC interference suppression filters, capacitors, or overvoltage

protection devices to the output of the Drive. Capacitors may generate peak currents that exceed Drive
specifications.

• To avoid unnecessary fault displays, caused by contactors or output switches placed between Drive and

motor, auxiliary contacts must be properly integrated into the control logic circuit.

• YASKAWA is not responsible for any modification of the product made by the user, doing so will void the

warranty. This product must not be modified.

• Verify that Drive rated voltage matches voltage of incoming power supply before applying power.
• To meet CE directives, proper line filters and proper installation are required.
• Some drawings in this manual may be shown with protective covers or shields removed, to describe

details. These must be replaced before operation.

• Observe Electrostatic Discharge Procedures when handling the Drive and Drive components to prevent

ESD damage.

• The attached equipment may start unexpectedly upon application of power to the Drive. Clear all

personnel from the Drive, motor and machine area prior to applying power. Secure covers, couplings,
shaft keys, machine beds and all safety equipment before energizing the Drive.