Noria control and protection device / transproter PKZN-7

The PKZN-7 control and protection device is designed to control the condition of elevator transport equipment - nori and conveyors. It is used as part of the System of control and protection of transport equipment.

What does it provide?

Electrical power supply and signal reception of movement sensors, belt speed, position, filling, clogging, level, temperature, current;

Display of data received from sensors and operating modes on the display; limit value settings;

Issuance of emergency notifications;

Breakage of the power contactor switching line of the engine in the event of an emergency alarm;

Data transfer to an external PC (PLC) for integration into the general process management system.

The device has a self-monitoring function. At the same time, programmed parameter deviations in percentages are displayed on the display, and complete testing of external and internal signal circuits and tripping circuit is performed.

In the basic version, the device has six galvanically isolated high-speed inputs for connecting discrete sensors of movement, speed, position, filling, clogging, level, one control input for turning on the power contactor of the electric motor and turning on the emergency notification, one output for turning off the power contactor of the electric motor, one port RS- 485 connection to a PC or PLC.

Variant of the PKZN / VIT-7 device when ordering. The basic equipment can be expanded by installing boards that expand the functionality:

PTR-7pkzn thermometry board for working with temperature sensors of the PTC, NTC, Pt100 type;
P1W-7pkzn thermometry board for working with thermosensors type DS18B20;
PLC-7pkzn weighing board;
PKE-7pkzn engine current and voltage control board.

The main technical characteristics of the device in the basic version:

Power supply
Modification	PKZN-7/220	PKZN-7/24
Supply voltage, V	~85 … 264	18 … 28
Consumed power, no more than, W	25	20
Power supply frequency, Hz	47 … 440	-
Output voltage of the built-in power supply of external sensors, V	24±3	-
The maximum output current of the built-in power supply of external sensors, mA	400	-
High-speed entrances
Number of entrances, pcs	6
Maximum frequency of input pulses, Hz	1000
Minimum pulse duration, ms	1
Input voltage, V	18 … 28
Maximum current of one input, mA	25
Signal level of "logical unit" for constant voltage, V	15 ... 27 (at least 4.5)
The level of the "logical zero" signal for constant voltage, V	0 ... 5 (no more than 1,5)
Type of galvanic isolation	optoisolation
Electrical durability of insulation, V	1500
Power contactor control input
Voltage in the contactor control circuit	~220V	24V
Number of entrances, pcs	1
Input current, mA	6	20
Exits
Output destination	Enable emergency notification	Break in the control circuit of the power contactor
Exit designation	"Accident"	"Stop"
Number of outputs, pcs	2
Output type	Relay, dry contact type
The maximum switching voltage, V	250
Minimum switching voltage, V	10
Rated current (Load power) AC1 AC15 AC3 DC1 DC13	16 A / 250 V AC 3 A / 120 V 1,5 A / 240 V (B300) 750 W (1-phase electric motor) 16 A / 24 V DC 0,22 A / 120 V 0,1 A / 250 V (R300)
Minimum switching current, mA	10
Minimum peak current, A	30
Continuous current load, A	16
Electrical and mechanical resource of cycles	More than 10000 (20 A, 250 V AC, 85 °C)
PC (PLC) communication interface
Interface type	RS-485
Communication protocol	ModBus RTU
Data transfer format	7 or 8 bits, parity
Transmission speed, bit/s	2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 115200
Cable length, m, no more than	1200 (KIPEV 1×2×0.6 TU 16.K99-008– 2001 or similar)
Network address of the device	1 … 32
General Information
The degree of protection of the housing according to DSTU ISO 14254–96	IP-65
Overall dimensions, mm	190 х 190 х 55
Weight, kg	1,05
Terms of use
Operating temperature, °С	-10 … +50
Storage temperature, °С	-25 … +65
Upper limit of relative air humidity at 25°С, %	80
Atmospheric pressure, kPa	80 … 110
Height above sea level no more than, m	2000
Immunity	Meets the requirements for resistance to interference in accordance with DSTU ISO R 51841 and DSTU ISO R 51522 for class A equipment
Radiation level of radio interference	Corresponds to the standards established for class B equipment according to DSTU ISO R 51318.22 (SISPR 22–97)
Resistance to air electric discharge, kV	± 8

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