AKS620 mining low voltage soft starter 690V soft starter
Product Overview
AKS620 open type soft starter for mining is another high-tech
product which is designed and manufactured by our company
independently and integrated with light, machine and electricity.
The product carries out the standards of Q/AZ2058-2005 and
MT/T943-2005, and on the basis of explosion-proof and intrinsically
safe vacuum electromagnetic starter for mining, it has changed the
original direct starting and stopping to soft starting and
stopping, and improved and perfected the new equipment such as
protection system and manipulation system, It is a new type of
equipment with improved protection, control and other systems. The
use of this device can maximize the elimination of mechanical and
current shocks, prolonging the service life of the equipment.
Modularized structure design, especially adapted to the use and
maintenance. The product is suitable for soft starting of heavy
load asynchronous motors with AC 660V, 1140V voltage and 400A rated
current, as well as magnetic starting under various conditions.
The starter is suitable for coal mines containing explosive gas
(A-burning) and coal dust, and is used for remote control of soft
starting, stopping and reversing or stopping in place of the
corresponding frequency and voltage of mining explosion-proof
three-phase squirrel-cage asynchronous motors in normal operation
to provide comprehensive protection for the motor and its wiring,
and it has the advantages of small starting current, balanced and
reliable starting speed, no vibration of the start-up process tape,
and small impact on the power grid. The starting curve is "S"
curve.
The starting curve is "S" curve, which can be adjusted according to
the actual working conditions on the site, especially suitable for
underground scraper conveyor, belt conveyor and joint coal mining
machine and other heavy load equipment.
This curve can be adjusted according to the actual working
conditions on site, especially suitable for soft starting of heavy
load equipment such as underground scraper conveyor, belt conveyor
and combined coal mining machine.
Product Key Features
| item | Project Description |
| Applicable standards | GB14048.6-2008(idt IEC 60947-4-2:2002) |
| Applicable motor type | Squirrel-cage three-phase asynchronous motors |
| Motor power | 18A-1000A(4-500kW) |
| input | Rated Voltage | AC220V-1140V;50Hz/60Hz ±5% |
|
| Continuous voltage fluctuation not more than ±10%, short-term
fluctuation not more than +10%. |
| Allowable voltage fluctuation range | Voltage imbalance rate: <3%;frequency: ±5% |
| Adjustable starting time | 1-60s adjustable |
| Adjustable stopping time | 1-60s adjustable |
| Adjustable starting torque | 30%-80%(direct starting torque) |
| Number of functions | >145 |
| I/0 | Number | Analog inputs 1 PTC input |
|
| Logic Input | 4 logic inputs |
| Analog Output | 0-20mA,0-5V selectable; 0-10V selectable; |
| Relay output | 4 relay outputs, 2 of which are configurable |
| Run command inputs | LCD keyboard display unit given, control terminal given; |
| RS485 communication given by a variety of ways to switch; |
| Dialog tools | Integrated remote display terminal or installation software package |
| Communication | Integrated communication protocols | Customization |
| Optional accessories | Modbus;Profibus-DP;DeviceNet |
| Display Unit | LCD display | Can display current, voltage, alarm light a variety of motor
parameters |
| Key lock and function selection | Partial or full locking of keys, define the function range of some
keys to prevent misuse. |
| Protection and monitoring | Short-circuit, over-voltage, under-voltage, overload, phase
failure, phase sequence, over-current, grounding, current imbalance
Motor temperature protection, repeat start time |
|
| newsletter | Protection class | IP20 |
| Cooling method | Heat sink, natural cooling |
Product Main Features
Leakage lockout
Built-in leakage detection function, using additional: DC way to
detect leakage, without the need for external leakage plug-in.
Bypass monitoring
Whether it is a direct start or soft start state, it plays a
real-time monitoring function, more comprehensive protection of the
motor.
Modularized design
Split modular design is more convenient for production,
installation, dismantling and maintenance, and the scientific
design of balancing principle realizes the purpose of simple and
convenient operation.
Communication function
Standard configuration of communication components, support for
customization, a variety of standard bus protocols, easy to realize
group control technology, factory default Modbus-R Tu protocol.
