Novatek-electro ET-485, Руководство по эксплуатации

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ЕТ-485
NOVATEK-ELECTRO
2. SPECIFICATIONS
2.1 MAIN SPECIFICATIONS
Main specifications are resulted in Table 1.
Table 1
– Main specifications of the unit
Operating supply voltage, VAC 230
Voltage to maintain normal operation, V
- alternating current
- direct current
100
– 250
140
– 350
Supply frequency, Hz 47
– 63
Data Exchange Interface over the Ethernet network 10BASE-T/100BASE-T (twisted pair)
Supported Ethernet protocols Modbus TCP, HTTP
Maximum number of connections over the Modbus TCP protocol 11
Integrated servers Modbus-server, HTTP-server
Data Exchange Interface over the Modbus network RS-485
Modbus network exchange modes Driving (Master) / Driven (Slave)
Supported Modbus protocols Modbus RTU, Modbus ASCII
RS-485 driver maximum output voltage, V 3.3
RS-485 output current of
short circuit
driver (limiting), mA
250
Integrated terminator resistance, Ohm 300
Recommend number of connected units within the Modbus network* 32, not more
Indication LED
’s
Readiness time upon switching the unit to the mains, sec, no more than 1
Utilized current (in case of 220 V), mA, at most 10
Weight, kg, at most 0.200
Dimensions, mm
95 х 52 х 67
Unit purpose Communication equipment
Nominal operation condition continuous
Terminal bus specifications
- cross-section of switched conductors, mm
2
- maximum effort (torque) on screw terminals, Nm
0.3
– 3
0.4
Level of protection:
- unit
- terminal bus
ІР30
IP20
Protection class against electrical shock II
Permissible pollution density II
Overvoltage category II
Rated insulation voltage, V 450
Rated impulse withstand voltage, kV 2.5
Operating position arbitrary
Pollutants in the amount, which is not to exceed the maximum
permissible concentration None
*
– when input current of connected device receivers equals 1 mA and equivalent resistance of RS-485 bus
terminators equals 60 ohm.
2.2 OPERATING CONDITIONS
This unit is designed to operate (or to be stored) under conditions resulted in Table 2.
Table 2
– Operating and storage conditions
Operating temperature, °С
from minus 35 to +55
Storage temperature, °С
from minus 45 to +70
Atmospheric pressure, kPa from 84 to 106.7
Relative air humidity (at 25°С), %
from 30 to 80
3. STRUCTURE AND FUNCTIONING
3.1. STRUCTURE
3.1.1. Design