Loudspeaking and Warning Signal Systems

Loudspeaking and Warning Signal System is designed for talk-back communication and signaling within range of long wall set of equipment and with mine (pit) supervisor, interlock of power train switches mounted on the entry; indication of states of technological protections, machines and mechanisms of the complex, as well as for talk-back communication along shafts.

THE EQUIPMENT PROVIDES:

· talk-back communication along face and gate conveyers, on apparatus complex, as well as along along shafts;

· single-stroke light and acoustic alarm (“knocking on”);

· interaction with mine warning system of type STARR or AUD;

· calling supervisor and conducting talks with him;

· emergency call of supervisor;

· generating warning signals and speech messages;

· visualizing emergency modes;

· visual signaling of the operation modes of selected system elements (sensors of gate conveyer, face conveyer, gate crusher, heading crusher, shearer);

· emergency shut-down of drives, identification of drives’ shut down site (visual together with speech message);

· monitoring of the system on the surface (when modem is used).

MAIN TECHNICAL CHARACTERISTICS OF THE COMMUNICATION SYSTEM:

· devices as part of the system are connected to one out of two trunks: gate (left-hand) and face (right-hand) against controller of CUKS-5BX type;

· maximum number of devices (network nodes) in the left-hand or right-hand trunk – 40 pcs;

· maximum number of loud-speaking devices in both trunks – 50 pcs

· maximum number of devices of type CUKS 1BX/2 in one trunk – 16 pcs

· maximum number of modules of type UMP 485 connected to the trunk in device of type CUKS-1BX – 16 pcs;

· minimal supply voltage of devices (network nodes) – 12.5 V DC;

· maximum supply voltage of devices (network nodes) – 15.8 V DC;

· operating temperature range from 0⁰ to 40 ⁰C;

· relative air humidity at ambient temperature + 40⁰ – 95% maximum.

Name of parameter	Norm
Number of trunk lines to be connected to subscriber terminals, pcs	2
Maximum number of subscriber terminals in one trunk line, pcs, at least	32
Level of sound pressure along loudspeaker axis upon actuation of prestarting alarm, dB, at least	96
Types of sound alarm	prestarting; coded; speech
Time of loud speaking communication operation after de-energizing all power units, h, minimum	4

Name of parameter

Norm

Level and type of implosion protection:

· central subscriber terminal

· subscriber terminal

· analog signals’ discriminator

· power unit

Exia I

Exdsia I

Make in degree of protection against humidity and dust:

· central subscriber terminal

· subscriber terminal

· analog signals’ discriminator

· power unit

Ip54

Overall dimensions, mm, maximum:

· central subscriber terminal

· subscriber terminal

· analog signals’ discriminator

· power unit

448 x 636 x 116

442 x 330 x 110

360 x 340 x 180

345 x 290 x 195

Mass, kg, maximum

· central subscriber terminal

· subscriber terminal

· analog signals’ discriminator

· power unit

DC supply voltage, V/current drain, mA, maximum:

· central subscriber terminal

· subscriber terminal

· analog signals’ discriminator

from 12.5 to 15/220

from 12.5 to 15/90

from 12.5 to 15/70

Power unit:

· operation range of AC supply voltage at frequency

[50 +/- 1] Hz, V

· stability of output voltages at variation of supply voltage

in the range from 90 to 250 V and load variation, %

· DC output voltage for each output, V

· maximum output current of each output, A, minimum

· protection of each output:

- for input voltage, V

- for output voltage, V

- for output current, A

from 90 to 250

15.0 +/- 0.3

1.5 +/- 0.3

89.5

15.3

1.5 +/- 0.3

Download questionnaire