iii
Preface
Thank you for purchasing the “Meiden AC Speed Control Equipment THYFREC-VT240S”.
THYFREC-VT240S is a highly functional inverter that is easy to use.
Please read this manual thoroughly before use, and keep the manual at hand for later
reference. Also make sure that this manual is delivered to the final users.
WARNING
ALWAYS READ THIS MANUAL THOROUGHLY BEFORE USING THE VT240S.
THIS INVERTER CONTAINS HIGH VOLTAGE CIRCUITS THAT MAY BE FATAL TO HUMANS. USE
EXTREME CAUTION DURING INSTALLATION. MAINTENANCE MUST BE PERFORMED BY
QUALIFIED TECHNICIANS, AND ALL POWER SOURCES MUST BE DISCONNECTED BEFORE ANY
MAINTENANCE. SUFFICIENT NOTICE MUST BE GIVEN TO THE GENERAL OPERATORS AND
WORKERS BEFORE STARTING.
• ELECTRIC SHOCK MAY OCCUR IF THE FOLLOWING POINTS ARE NOT OBSERVED.
(1) DO NOT OPEN THE FRONT COVER WHILE THE POWER IS ON.
(2) A CHARGE STILL REMAINS IN THE INVERTER WHILE THE INDICATOR IS LIT EVEN IF THE
POWER HAS BEEN TURNED OFF. DO NOT OPEN THE FRONT COVER IN THIS CASE. WAIT
AT LEAST 20 MINUTES AFTER THE INDICATOR GOES OUT.
(3) DO NOT CONTACT THE ELECTRICAL CIRCUIT WHILE THE "CHARGE" LED ON THE UNIT IS
LIT. PERFORM SERVICING, ETC., AFTER WAITING AT LEAST 20 MINUTES AFTER THE
LAMP GOES OUT.
(4) ALWAYS GROUND THE INVERTER CASE. THE GROUNDING METHOD MUST COMPLY WITH
THE LAWS OF THE COUNTRY WHERE THE INVERTER IS BEING INSTALLED.
• THE INVERTER MAY BE DESTROYED BEYOND REPAIR IF THE FOLLOWING POINTS ARE NOT
OBSERVED.
(1) OBSERVE THE INVERTER SPECIFICATIONS.
(2) CONNECT ADEQUATE CABLES TO THE INPUT/OUTPUT TERMINALS.
(3) ALWAYS KEEP THE INVERTER INTAKE/OUTTAKE PORTS CLEAN, AND PROVIDE ENOUGH
VENTILATION.
(4) ALWAYS OBSERVE THE CAUTIONS LISTED IN THIS INSTRUCTION MANUAL.
• THERE MAY BE SOURCES OF NOISE AROUND THIS INVERTER AND MOTOR DRIVEN BY
THIS INVERTER. CONSIDER THE POWER SUPPLY SYSTEM, INSTALLATION PLACE AND
WIRING METHOD BEFORE INSTALLATION.
INSTALL THIS INVERTER AWAY FROM DEVICES THAT HANDLE MINUTE SIGNALS, SUCH AS
MEDICAL EQUIPMENT IN PARTICULAR. ALSO SEPARATE THE DEVICES ELECTRICALLY,
AND TAKE SUFFICIENT NOISE MEASURES.
• TAKE SUFFICIENT SAFETY MEASURES WHEN USING THIS INVERTER FOR PASSENGER
TRANSPORTATION, SUCH AS IN LIFTS (ELEVATORS).
• LONGEVITY MIGHT BECOME REMARKABLY SHORT BY THE TEMPERATURE CHANGE’S
BY THE CURRENT OF THE REPETITION ALWAYS JOINING IN THE POWER DEVICE WHEN
USED BY THE USAGE WITH HIGH REPETITION FREQUENCY OF DRIVING AND THE STOP
(ELEVATOR AND CRANE, ETC.).
WHEN USED BY SUCH A USAGE, DIRATING (FRAME RAISING OF THE INVERTER, CURRENT
DECREASE WHEN STARTING AND STOPPING, AND DECREASE OF THE CAREER FREQUENCY)
IS NEEDED.
PLEASE INQUIRE SEPARATELY ABOUT DETAILS.
To Next Page
Loading...