Universal Relay UR420IP
Monitoring Relay for Temperatures and analog signals
2 Limits, IP interface, built in webserver
Product description
Web-IO universal limit value relay with Ethernet interface, built-in web server and 4 inputs for temperature sensors or other analog signals. The UR420IP can be connected to the internet or an intranet and operated via TCP/IP from a normal PC with a suitable browser.
The device can simultaneously evaluate and monitor up to 4 different input signals. Each of the 2 output relays can be assigned up to 4 limit values, one per input. If a limit value is reached, an alarm is triggered and a relay switches. Example: Alarm 1 is activated when a temperature is exceeded at sensor input 3 (e.g. Pt 100) or the signal from a pressure transmitter (e.g. 4-20 mA) at input 5 falls below a limit value. The device also has an RS485 interface (Modbus RTU).
Accessory: Installation frame ER6 for panel mount
Applications
The UR420IP is used where one or more of the following features a required:
- monitor up to 4 different analogue measured values and transfer them to the Internet
- Measured value query and remote maintenance via intranet/internet
4 Measuring inputs (every input individually programmable)
- Pt 100 (RTD), Pt 1000 in 2- or 3-wire connection
- PTC-sensors (thermistors)
- Thermocouples type B, E, J, K, L, N, R, S, T
- DC 0-10 V, DC 0/4-20 mA
- Resistance 500 Ohm, resistance 30 kOhm
- Virtual sensors: linking of measured values (difference, MIN/MAX)
- 2 digital inputs with programmable functions
2 Alarms/Output Relays
- 2 relays, potential-free change-over contacts
- Remote switching command for relays via Ethernet
- individually programmable for each alarm:
- one limit value per measurement input/virtual sensor (switching and reset value)
- switching and switch-back delay
- Remote control of the relays (on/off) via browser
- 2 out of x, alarm only if limit value is reached in 2 sensors
Interfaces:
- Ethernet interface (http and modbus)
- Modbus TCP protocol for reading data (port adjustable)
- RS485 interface for reading data with Modbus (RTU)
Connected to internet via web-browser
- Measured values, min/max values with date/time stamp
- Simulation of measured values
- status of the alarms
- Configuration of the inputs (name, type, compensation, scaling and unit)
- Configuration of alarms (limit values, relay function, ...)
- Data logging of measured values for each input, with time stamp
- Logging interval adjustable from 10 seconds to 30 minutes.
- alarm logging
- network configuration and system settings
- User management and password protection
- Real-time clock with time server synchronization, power reserve 7 days
Displays and controls
- LCD display and joystick for querying measured values and operation
Technical Data
Rated supply voltage Us
AC/DC 24-270 V, 0/50/60 Hz < 3 W < 7VA
Tolerance DC
DC 20,4...297 V
Tolerance AC
AC 20...264 V
Relay output
2 x 1 changeover (CO)
Switching voltage
max. AC 300V, DC 300 V
Type of contact
Type 2 (see "general technical information")
Digital inputs
app. DC 18 V / 3,5 mA
Pt 100, Pt 1000 according to EN 60751
Accuracy
±0,5 % of measured value 1 K
Sensor current
≤1 mA
Measuring cycle / measuring time tM
<1 s depending on number and type of connected sensors
Thermocouples according to EN 60 584, DIN 43 710
Thermal drift
< 0,01 % / K
Measuring error of the sensor line
+0,25 μV / Ω
Accuracy of summing point
±5 °C
Voltage- / Current input
Thermal drift
< 0,02 %/K
Measuring time
<= 40 ms
Measuring of resistance
Accuracy 0,0 … 500,0 Ω
< 0,2 % of measured value ± 0,5 Ω
Accuracy 0…30,00 kΩ
< 0,5 % of measured value ± 2 Ω
Measuring current
≤ 0,6 mA
Housing
Design / Installation Frame
V6, switchgear mount / Front mounting kit ER6, 6 TE
Dimensions (W x H x D)
105 x 90 x 58 mm, mounting height 55 mm
Wire connection, one wire
each 1 x 1,5 mm2
Stranded wire with insulated ferrules
each 1 x 1,0 mm2
Protection class housing/terminals
IP 30/IP 20
Attachment
DIN rail 35 mm according to EN60715 or screws M4 (with 2 extra bars)
Weight
app. 250 g
FAQ / Product videos