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Multifunctional weight controller MWC

Multifunctional weight controller MWC

The multifunctional weight controller MWC ensures measuring of mass of transported by the belt conveyor free-flowing and lump materials with its indication by the accruing total and indication of the current capacity of the conveyor as a part of the belt scales (VK), and also continuous batching with the set capacity of free-flowing and lump materials as a part of the weight batcher of continuous operation (DWL).

Features:

- measuring of the motion speed of the conveyor belt by reception and handling of impulses from the part of the belt scales - the belt speed sensor;

- operation with the entered motion speed of the conveyor belt with use of a discrete input signal about the belt motion;

- generation of a signal of direct current (0-5), (0-20) or (4-20) mА, proportional to the current capacity or for control of the frequent converter (in composition of the DWL);

- discrete input and output signals of control and control of the frequent converter, shut-down of the DWL, execution of the set dose;

- setting and control of the capacity by the external current signals (by means of the specialized portable terminal);

- control of the external electromechanical counter of impulses, proportional to the accruing total of mass of the transported material with programmed "cost" of an impulse;

- measuring of an inclination angle of the conveyor for correction of evaluations depending on its change in the operation process;

- input and output discrete signals of the measuring mode of the belt weight;

- six- or four-wire connection of the load cell;

- simple calibration of the gear by exemplary weights, and with use of values mV/V of the transmitters;

- data transmission to peripherals by interface RS-485 or RS-232 with use of the protocol ModBus;

- use of wireless data transmission by means of the portable modem;

- built-in tests;

- indication of abnormal operation of the batcher (emergencies);

- password protection of settings;

- bilingual interface (Russian / English) of the user (with use of the portable board-terminal TV-330);

- possibility of loading of the software at the Customer for its renewal or the functionality change.

Technical data

Name

Value

Power supply

from alteating-current mains with voltage 90…260 V, frequency 50…60 Hz with use of the integral power supply, or from direct-current mains with voltage 12 … 24 V

Power consumption, VА, no more

10 (without loads connected to discrete exits)

Overall dimensions, mm

110х182х90

Mass, kg, no more

2,5

Temperature range, °С

from – 30 to + 50

Range of an input analogue signal of direct current voltage, mV

is fixed depending on the operating transmission coefficient of the load cells in ranges 0 - 10, 0 - 20, 0 - 40 and 0 - 80

Range of an output analogue signal of direct current, mA

0 – 5; 0 – 20; 4 - 20

Input of discrete signals

8 ports of galvanically disentangled signals of direct current with voltage 12…24 V8 каналов гальванически развязанных сигналов постоянного тока напряжением 12…24 В

Output of discrete signals

8 ports of galvanically disentangled signals of direct current with voltage 12…24 V and output capacity 0,5 A. The total load no more than 40 VА

Power supply of the tensoresistive transmitter

5 V of direct current voltage

Amount of connection ports of the tensoresistive transmitters

1 or 2 (optionally at connection of the transmitter of the conveyor tilt angle)

Number of transmitters

to 8 (at input resistance 400 Ohm)

Maximum length of a cable for transmitter connection, m

50 (at 6 wire connection)

Inteal resolution of the measuring channel of transmitters, discharges

24

Industrial resolution, references

40000

Commercial resolution, references

10000

Change of a transformation coefficient from temperature, no more

0,01 %/10 °С

Discrecity of reference

1; 2; 5х1; 0,1; 0,01; 0,001

Units measure

kg, t, kg/m, t/hour, m, m/s

The serial interface

The first channelRS-485/ RS-232

The second channel RS-485 (option)

Functions

  • measuring of mass of the transported by the belt conveyor free-flowing and  lump materials with its indication by the accruing total;
  • measuring and indication of the current capacity of the conveyor;
  • measuring and indication of the current (or entered) speed of motion of the conveyor and the current linear load;
  • shipment of the set quantity of the material;
  • measuring of weight of unloaded belt at in advance entered or measured length of the belt with possibility of control and indication and discrete signals;
  • shaping of the emergency signal at emergency operation of the batcher with the indication on the display of the character of the emergency operation;
  • transmission of the described above data to the peripherals by the interface RS-485 or RS-232 with use of the protocol ModBus.

Complete set

Customers

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