YASKAWA Varispeed G7, Руководство по связи Modbus

Страница: 3 / 92

3
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 remains 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 WARRANT Y, 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 G7 drive. All warnings, cautions, and instructions must
be followed. All activity must be performed by qualified personnel. The G7 drive must be installed according to this manual and local
code.
Do not connect or disconnect wiring while the 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 50 VDC. To prevent
electric shock, wait at least 5 minutes after all indicators are OFF and measure DC bus voltage and verify 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.
The G7 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 over voltage protection devices to the output of
the G7 drive. Capacitors may generate peak currents that exceed G7 drive specifications.
To avoid unnecessary fault displays, caused by contactors or output switches placed between G7 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 the rated voltage of the G7 drive matches the voltage of the 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 G7 drive and G7 drive components to prevent ESD damage.
The attached equipment may start unexpectedly upon application of power to the G7 drive. Clear all personnel from the G7 drive,
motor, and machine area prior to applying power. Secure covers, couplings, shaft keys, machine beds and all safety equipment before
energizing the G7 drive.
Do not attempt to disassemble this unit. There are no user serviceable parts. Disassembling this unit will void any and all warranties.