Mitsubishi Electric 800 Series Instruction Manual page 7

CAUTION
Usage
 The electronic thermal relay function does not guarantee protection of the motor from overheating. It
is recommended to install both an external thermal and PTC thermistor for overheat protection.
 Do not use a magnetic contactor on the inverter input for frequent starting/stopping of the inverter.
Doing so may shorten the life of this product.
 The effect of electromagnetic interference must be reduced by using a noise filter or by other means.
Otherwise nearby electronic equipment may be affected.
 Appropriate measures must be taken to suppress harmonics. Otherwise power supply harmonics
from the inverter may heat/damage the power factor correction capacitor and generator.
 When driving a 600 V class motor by the inverter, the motor must be an insulation-enhanced motor or
measures must be taken to suppress surge voltage. Surge voltage attributable to the wiring constants
may occur at the motor terminals, deteriorating the insulation of the motor.
 When parameter clear or all parameter clear is performed, the required parameters must be set again
before starting operations because all parameters return to their initial values.
 The inverter can be easily set for high-speed operation. Before changing its setting, the performances
of the motor and machine must be fully examined.
 Stop status cannot be hold by the inverter's brake function. In addition to the inverter's brake function,
a holding device must be installed to ensure safety.
 Before running an inverter which had been stored for a long period, inspection and test operation
must be performed.
 Static electricity in your body must be discharged before you touch the product.
 Only one PM motor can be connected to an inverter.
 A PM motor must be used under PM motor control. Do not use a synchronous motor, induction motor,
or synchronous induction motor.
 Do not connect a PM motor in the induction motor control settings (initial settings). Do not use an
induction motor in the PM motor control settings. It will cause a failure.
 In the system with a PM motor, the inverter power must be turned ON before closing the contacts of
the contactor at the output side.
 To maintain the security (confidentiality, integrity, and availability) of the inverter and the system
against unauthorized access, DoS
devices via network, take appropriate measures such as firewalls, virtual private networks (VPNs),
and antivirus solutions. We shall have no responsibility or liability for any problems involving inverter
trouble and system trouble by DoS attacks, unauthorized access, computer viruses, and other
cyberattacks.
 When the emergency drive operation is performed, the operation is continued or the retry is repeated
even when a fault occurs, which may damage or burn the inverter and motor. Before restarting the
normal operation after using the emergency drive function, make sure that the inverter and motor
have no fault.
*2 DoS: A denial-of-service (DoS) attack disrupts services by overloading systems or exploiting vulnerabilities, resulting in a
denial-of-service (DoS) state.
6
*2
attacks, computer viruses, and other cyberattacks from external