Weight processor PW-310 for the weight batcher of the belt type DWL

Weight processor PW-310 for the weight batcher of the belt type DWL

The weight processor PW-310 for the weight batcher of continuous operation (DWL) ensures continuous batching of free-flowing and lump materials with the set capacity and indication of the current capacity, and also measuring and indication of mass of the transported material by the accruing total.

Features:

- measuring of speed of the conveyor belt moving by reception and handling of impulses from the belt speed sensor,  included into the composition of the belt scales;

- generation of the signal of direct current (0-5), (0-20) or (4-20) mА, for control of the frequent converter;

- 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;

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

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

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

- non-volatile memory for storage of the journal, totals, settings and real time clock;

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

- distant control by interface RS-485 or RS-232 with use of the protocol ModBus;

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

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

- the journal of totals (hour, shift, month, annual);

- the journal of events;

- built-in tests;

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

- password protection of settings;

- bilingual interface (Russian / English) of the user;

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

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

280 х 182 х 90

Mass, kg, no more

2,5

Temperature range, °C

from – 10 to + 50

The display

liquid crystal character with illumination, 16 decades, height of a decade 10 mm

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 V

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 (by request)

Number of transmitters

to 8 (at input resistance of transmitters 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

Division value

1; 2; 5х1; 0,1; 0,01; 0,001

Units measure

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

Control buttons

4 pieces

The serial interface

The first channel RS-485 / RS-232;
The second channel - RS-485 (option)

Non-volatile memory (RAM), Kb

8 (482 records in jouals) with real time clock
  • maintenance of the demanded value of capacity;
  • measuring and indication of the linear load of the conveyor, speed of the conveyor, current capacity;
  • shipment of the set quantity of material;
  • control of the exteal electromechanical counter of impulses, proportional to the accruing total of mass of the transported material with programmed "cost" of an impulse;
  • 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 abnormal operation of the batcher with the indication on the display of character of abnormal operation;
  • shaping of the joual of hour, shift, month, annual totals, the joual of events for storage of the information about the executed processes by maintenance personnel (the process title, date and time) and the joual of all emergencies;
  • data transmission to peripherals by interface RS-485 or RS-232 with use of the protocol ModBus;
  • remote control of the batcher operation by interface RS-485 or RS-232 with use of the protocol ModBus.

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