Toshiba TOSVERT VF-AS3 Instruction Manual page 2

Safety precautions
On the inverter and in its instruction manual, important information is contained for preventing injuries to
users and damages to assets and for proper use of the device. Read the instruction manual attached to
VF-AS3 along with this instruction manual for completely understanding the safety precautions and adhere
to the contents of these manuals.
- TOSVERT VF-AS3 Instruction Manual................................................. E6582062
▼ Do not use application of writing into inverter parameters more than 100,000 times.
The Life of EEPROM is approximately 100,000 times.
Prohibited
Frequent writing to the EEPROM of inverter will cause a memory corruption.
▼ The following steps must be performed before wiring and installation.
Turn off all input power, wait at least 15 minutes, and confirm that the charge lamp of the
drive is no longer lit.
If steps above are not properly performed, this can result in electric shock.
▼ Use an emergency stop device and an additional safety device in your system to prevent
Mandatory
serious accident due to the option malfunctions.
Usage without any emergency stop device or any additional safety device can result in
accident or injury.
▼ Do not use application of writing into inverter parameters more than 100,000 times.
The Life of EEPROM is approximately 100,000 times.
Frequent writing to the EEPROM of inverter will cause a memory corruption.
Prohibited
▼ Do not connect RS485 communication cable into Ethernet port.
Erroneous connection will result in failure.
▼ Insert an electromagnetic contactor between the inverter and the power supply so that the
machine can be stopped without fail from an external controller in case of an emergency.
▼ About the handling of the inverter, please follow the Inverter's instruction manual.
▼ Set up "Communication error trip function (see below)" to stop the Inverter when the device
is deactivated by an unusual event such as tripping, an operating error, power outage,
failure, etc.
Mandatory
- Network Time-Out, Inverter operation at disconnection, Preset speed operation selection
(Refer to "2.4.4 Setting for Communication error detection" for details)
Deactivated the device may cause an accident, if the "Communication error trip function" is
not properly set up.
WARNING
CAUTION