YASKAWA G7U_499str_ang.pdf

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YASKAWA
Varispeed G7
INSTRUCTION MANUAL
GENERAL PURPOSE INVERTER (ADVANCED VECTOR CONTROL)
MODEL: CIMR-G7A
200V CLASS 0.4 to 110kW (1.2 to 160kVA)
400V CLASS 0.4 to 300kW (1.4 to 460kVA)
Upon receipt of the product and prior to initial operation, read these instructions
thoroughly, and retain for future reference.
YASKAWA
MANUAL NO. TOE-S616-60.1E
Preface
This manual is designed to ensure correct and suitable
application of Varispeed G7-Series Inverters. Read
this manual before attempting to install, operate, main-
tain, or inspect an Inverter and keep it in a safe, conve-
nient location for future reference. Be sure you
understand all precautions and safety information
before attempting application.
General Precautions
• The diagrams in this manual may be indicated without covers or safety shields to show details.
Be sure to restore covers or shields before operating the Units and run the Units according to the
instructions described in this manual.
• Any illustrations, photographs, or examples used in this manual are provided as examples only
and may not apply to all products to which this manual is applicable.
• The products and specifications described in this manual or the content and presentation of the
manual may be changed without notice to improve the product and/or the manual.
• When ordering a new copy of the manual due to damage or loss, contact your Yaskawa represen-
tatives or the nearest Yaskawa sales office and provide the manual number shown on the front
cover.
• If nameplates become warn or damaged, order new ones from your Yaskawa representatives or
the nearest Yaskawa sales office.
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Safety Information
The following conventions are used to indicate precautions in this manual. Failure to heed pre-
cautions provided in this manual can result in serious or possibly even fatal injury or damage to
the products or to related equipment and systems.
Indicates precautions that, if not heeded, could possibly result in loss of life or serious injury.
WARNING
CAUTION
Indicates precautions that, if not heeded, could result in relatively serious or minor injury, damage
to the product, or faulty operation.
Failure to heed a precaution classified as a caution can result in serious consequences depending
on the situation.
Indicates important information that should be memorized.
IMPORTANT
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Safety Precautions
Confirmations upon Delivery
CAUTION
• Never install an Inverter that is damaged or missing components.
Doing so can result in injury.
Installation
CAUTION
• Always hold the case when carrying the Inverter.
If the Inverter is held by the front cover, the main body of the Inverter may fall, possibly resulting in injury.
• Attach the Inverter to a metal or other noncombustible material.
Fire can result if the Inverter is attached to a combustible material.
• Install a cooling fan or other cooling device when installing more than one Inverter in the same
enclosure so that the temperature of the air entering the Inverters is below 45°C.
Overheating can result in fires or other accidents.
Wiring
WARNING
• Always turn OFF the input power supply before wiring terminals.
Otherwise, an electric shock or fire can occur.
• Wiring must be performed by an authorized person qualified in electrical work.
Otherwise, an electric shock or fire can occur.
• Be sure to ground the ground terminal. (200 V Class: Ground to 100
Ω
or less, 400 V Class:
Ground to 10
Ω
or less)
Otherwise, an electric shock or fire can occur.
• Always check the operation of any emergency stop circuits after they are wired.
Otherwise, there is the possibility of injury. (Wiring is the responsibility of the user.)
• Never touch the output terminals directly with your hands or allow the output lines to come into con-
tact with the Inverter case. Never short the output circuits.
Otherwise, an electric shock or ground short can occur.
• If the power supply is turned ON during the FWD (or REV) Run Command is given, the motor will
start automatically.
Turn the power supply ON after verifying that the RUN signal is OFF.
Failure to observe this warning may result in injury.
• When the 3-wire sequence is set, do not make the wiring for the control circuit unless the multi-
function input terminal constant is set.
Failure to observe this warning may result in injury.
CAUTION
• Check to be sure that the voltage of the main AC power supply satisfies the rated voltage of the
Inverter.
Injury or fire can occur if the voltage is not correct.
• Do not perform voltage withstand tests on the Inverter.
Otherwise, semiconductor elements and other devices can be damaged.
• Connect braking resistors, Braking Resistor Units, and Braking Units as shown in the I/O wiring
examples.
Otherwise, a fire can occur and the Inverter, braking resistors, Braking Resistor Units, and Braking Units can be damaged.
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CAUTION
• Tighten all terminal screws to the specified tightening torque.
Otherwise, a fire may occur.
• Do not connect AC power to output terminals U, V, and W.
The interior parts of the Inverter will be damaged if voltage is applied to the output terminals.
• Do not connect phase-advancing capacitors or LC/RC noise filters to the output circuits.
The Inverter can be damaged or interior parts burnt if these devices are connected.
• Do not connect magnetic contactors to the output circuits.
If a load is connected while the Inverter is operating, surge current will cause the overcurrent protection circuit inside the
Inverter to operate.
Setting User Constants
CAUTION
• Disconnect the load (machine, device) from the motor before performing rotational autotuning.
The motor may turn, possibly resulting in injury or damage to equipment. Also, motor constants cannot be correctly set
with the motor attached to a load.
• Stay clear of the motor during rotational autotuning.
The motor repeats running and stopping until autotuning has been completed, possibly resulting in injury.
• In stationary autotuning 1, when the motor is first operated in the drive mode after tuning, the
remaining motor constants E2-02 (Motor rated slip) and E2-03 (Motor no-load current) are set auto-
matically. To perform an operation immediately after stationary autotuning 1, use the following pro-
cedure under the recommended conditions.
(1) Check the values of E2-02 and E2-03 in verify mode or advanced programming mode.
(2) Run the motor once in drive mode under the following conditions.
• The Inverter and the motor are connected.
• The motor shaft is not locked with a mechanical brake or other stopping mechanism (or function).
• A motor-load ratio of 30% or less is maintained.
• A speed of 30% or more of the base frequency set at E1-06 (default = highest frequency) is maintained at
a constant speed for one second or more.
(3) After stopping the motor, check the values of E2-02 and E2-03 again in verify mode or advanced program-
ming mode. If the values of E2-02 and E2-03 differ from the ones before the first operation was carried out,
the settings have been successfully completed. Next, check if the values are suitable or not.
If the values of E2-02 and E2-03 differed greatly from the reference data of the motor in the test report or the instruction
manual (TOE-S616-60.1), hunting, motor vibrations, insufficient motor torque, or an overcurrent may occur because the
motor is operated although the aforementioned conditions have not been fulfilled after stationary autotuning 1. For eleva-
tors, failure to observe this caution may result in the cage falling or injury. If so, perform stationary autotuning 1 again and
run the motor using the aforementioned procedure under the recommended conditions or perform stationary autotuning 2
or rotational autotuning.
Usually the standard setting for E2-02 is 1 Hz to 3 Hz, and that for E2-03 is 30% to 65% of the rated current for a general-
purpose motor. Generally, the larger the motor capacity is, the smaller the rated slip and the ratio of the no-load current to
the rated current become. Use the data given in
Factory Settings that Change with the Inverter Capacity (o2-04) of Chap-
ter 5 User Constants
as a reference.
Trial Operation
WARNING
• Check to be sure that the front cover is attached before turning ON the power supply.
An electric shock may occur.
• Do not come close to the machine when the fault reset function is used. If the alarmed is cleared,
the machine may start moving suddenly.
Also, design the machine so that human safety is ensured even when it is restarted.
Injury may occur.
• Provide a separate emergency stop switch; the Digital Operator STOP Key is valid only when its
function is set.
Injury may occur.
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