TE-RTD12 RTD Relay

12 built-in RTD Inputs

2 Isolated Digital Inputs (4-20mA)

3 Programmable Form-C Output Relays

2 Isolated Analog Inputs (4-20mA)

Differential Current Feedback Monitoring

RS485 MODBUS-RTU Communication

 

 

The TE-RTD12 Relay device adds advanced RTD (Resistor Temperature Detector) and differential current monitoring capability to your new or existing motor system. The TE-RTD12 Relay device offers 12 built-in RTD inputs, 3 programmable output relays (5A), 2 isolated analog inputs (4-20mA), 1 isolated analog output (4-20mA), 3 isolated digital inputs, and differential current feedback monitoring.

Additionally, an RS485 (2 wire) communication port is available for use with a master device (PLC / SCADA / Operator Interface) for the purpose of programming and/or monitoring.

Programmable relay outputs are provided that can be configured for a system function or for use as a global Alarm or Trip based on temperature readout, which can be entered in ºC or ºF.
A built-in event recorder stores fault history of past events with data points including Alarm / Trip Code, Current / Temperature value, Analog input value and Date / Time Stamp.

The TE-RTD12 Relay device can be mounted on a back panel using the mounting bracket or DIN-Rail mount.

 

Specifications
Control Voltage 110 - 240 Vac
Inputs

12 RTD inputs (Pt100, Ni100, Ni120, Cu10)
3 CT inputs for differential CT’s 
2 isolated 4-20mA inputs ð
3 isolated Digital Inputs*
Outputs

3 programmable form C Relays with 5A contact rating pilot duty
One isolated 4-20mA output ð
Keypad

Two 4-digit displays, one for the RTD name (St1, St2, Fb, rb…) and one for the temperature. 
1 green ‘OK’ LED, 1 yellow ‘ALARM’ LED, 1 red ‘TRIP’ LED and 3 Relay LED’s.
7 pushbuttons: 4 arrows, 1 ‘Function’, 1 ‘Enter’ and a ‘Reset’ button
Differenctial CT's

Primary 5 - 2000A
Secondary 1A or 5A
Alarm and Trip Levels OFF, 5% to 90 % of CT value
Important: The differential CT  feature is NOT designed to act as a UL Ground Fault or Over Current protection.
Resolution / Accuracy Analog Inputs better than 1%, Analog Outputs better than 0.5%
Communication Port 2 Wire RS485*
Serial Protocol MODBUS RTU
I/O Terminals Removable terminal blocks
Operating Temperature 32ºF – 122ºF / 0ºC to 50ºC
Storage Temperature -4ºF – 176ºF / -20ºC to 80º
Humidity 10% to 90% (non-condensing)
Approvals UL, CUL
   
* RS485 and Digital Inputs share a common ground point ð All analog I/O share a common ground point.