Description
Flameproof and I. S. Multi-Loop Vacuum Magnetic
Starter
It is used in underground coal mines, where there are mixed
explosive gases, such as methane and coal dust. With a power
supply of AC *0Hz, rated voltage ***0V (**0V), it functions
as starting, stopping, single-machine dual-speed, dual-machine
dual-speed, sequential control for the electromechanical devices
such as coal cutter, scraper, loader, crusher, emulsion pump
station according to the actual
requirements.
Main Functions and Features
With
an embedded computer, DSP or programmable industrial controller,
the pilot and control system can carry out real-time monitoring of
the equipment. It protects the power system from leakage locking,
overload, short circuit, phase loss, under-voltage and overvoltage,
etc. In addition it also has the advantage of high intelligence,
stable performance and reliability.
The starter can display the system voltage; the electrification
state of pre/post-stage of the isolation switch; the working
status, working current, insulation resistance, setting current,
short-circuit multiple of the contactor of each loop; the setting
values of the system parameters; and in addition it can provide the
fault memory of fault category and fault points and query of
historical faults and curves as well as being able to display the
test status; current time and date. It is a user-friendly interface
with a man-machine function, it greatly improves the efficiency of
analyzing and judging faults and
troubleshooting.
Converting all the analog signals to digital signals, the
starter has characteristics of strong anti-interference, simple
wiring, large amount of information, and reliable and precise
control, etc;
The starter has complete self-test, self-diagnosis and fault
simulation test functions;
It is flexible and convenient to operate with the I.S.
keyboard;
With modular control and protection designed for the driver
unit and simple communication between the embedded computer and
modules, it greatly reduces the quantity of internal signal
lines;
With a modular structure for the shell, the starter can
achieve the extension of an on-site output circuit making it very
convenient to operate;
With the core pulling structure for driver unit, the starter
has a compact structure and is convenient for
maintenance;
With abundant communication functions, the starter supports
multiple communication modes such as Ethernet, PROFIBUS, RS**5,
RS**2, CAN, is convenient to connect with the monitoring and
control system and connect with other starters for united
control;
The starter provides auxiliary power supplies of AC **7 V and
AC **0 V and has protection functions such as short circuit and
over-current, etc.
Technical Parameters
Rated Working Voltage: **0/***0 V
Power Frequency: *0 Hz
Rated Current: ***0 A
Capacity of Isolation Switch: **0 A
Contactor Capacity: **0/**0/**0 A
Input Channels: 4 channels
Output Channels: 8~*2 channels
Maximum Open Circuit Voltage of I.S. Circuit:
*2V
Maximum Short-Circuit Current of I.S. Circuit: *0
mA
Fluctuation Range of Power Supply Voltage: *5% ~
**0%
Control Mode: independent control, dual-speed control and
sequence control
Control System: Controlled by the embedded computers, DSP or
SIEMENS programmable industrial controller, the starter has the
functions such as no-load, simulation test and remote/local
control
Display Mode: 7" color industrial-control LCD in Chinese,
displaying the working state and fault of each
circuit
Communication Interfaces: RS**5, RS**2, PROFIBUS and Ethernet
port
Auxiliary Power: 5 kVA, output **0 V, **7
V
Overall Dimensions: ***0 × **0 × ***5 (mm) (horn mouth) ***0
× **0 × ***5 (mm) (cable connector)
Overall Weight: ***0 kg (**-loops, horn mouth), ***0 kg
(**-loops, cable connector)