AS700 series inverter for four-quadrant port machinery is specially
designed for the industrial hoisting field, such as large portal
hoist, gantry crane, shore bridge, bulk cargo, crane, and has
successfully applied in the industries such as paper making,
metallurgy, mining, cement, energy, chemical, petroleum and natural
AS700 series inverter for four-quadrant port machinery is a highly
flexible AC drive product with below outstanding features:
customized to meet the user's individualized needs; wide range of
power and voltage, including maximum 690V industrial voltage;
several built-in options; programmable to meet different
Complete energy regeneration drive
AS700 series is a compact cabinet drive configured with energy
regenerative power supply unit. This drive includes all parts that
are running with energy regenerative including filter at incoming
line side. Energy regenerative power supply unit allows energy
conversion between motor and generator mode. One of the main design
concepts of STEP industrial drive is to ensure the product with
long service life. Consumable parts such as fan, capacitor would be
selected with the type based on the principle of extension of
service life. Meanwhile the product has strong protection which is
well-known under this continuously growing industry fields.
AS700 is more energy saving compared with other braking methods
(such as mechanical braking, resistance braking). Energy
regenerative drive has obvious energy saving advantages, i.e.
energy direct feedback toward grid without heating consumption. As
external braking resistance is not required, it could be easily
installed with smaller space.
AS700 enables very quick conversion between electric and power
generation mode, which is based on quick control performance of
vector technology. Energy regenerative power supply unit can
improve output voltage, and even if input voltage is lower than
rated value, it can still output rated voltage with full amplitude.
This unit based on vector control can also compensate instant
fluctuation of grid voltage. Therefore, even if the power voltage
drops, the device will not be damaged or fuse blown.
AS700 standard configuration can meet different application needs.
The cabinet drive series own wide features and built-in options.
Main standard features
S3i - n*S3i and S4i - n*S4i control board located outside the
Circuit board with coating
Extendable programming I/O port
Profibus DP communication
Input electric isolation
AC contractor at incoming line side
Built-in LCL filter
Du/dt filter (nx in outline dimension)
Optimal design for cabinet installation
Module design more convenient with versatile installation
Cooling fan and capacitor with super-long service life
DC fuse, with the base or DC fuse switch + charging circuit
cabinet door/top components of IP21-IP54 protection level
Drives AS700 Series Cabinet-type Inverter Images