Product Brief - Model C2156C-0 LC90e

POWERTERM LC90e CP CONTROLLER ETHERNET

 Fully isolated dual RS485 communications port
 Designed for remote monitoring and control
 Ethernet port
 GSM or NextG option
 Wide operating temperature range
 Universal 85-264Vac input voltage
 DIN Rail mounting with small panel footprint


POWERTERM LC90e CP CONTROLLER ETHERNET


OVERVIEW

The Powerterm LC90 and LC90e are universal controllers for use in any Cathodic Protection systems.

Both models can monitor up to 90 references and control up to 480 C2151/C2152 TR’s.

Both models can be configured to control constant voltage, constant current, or constant reference potential. All configuration settings can be changed via the serial communications links either from a locally mounted PowerView CP Operator Interface Panel, or remotely using the Omniflex Data2Desktop Monitoring Service.

SERIAL COMPUTER INTERFACE

The LC90 modules have two integrated Modbus RS485 serial ports, a single RS232 serial port and USB port making these products compatible with the latest remote monitoring and control systems. The LC90e models are also equipped with Ethernet port. Links to TR’s are electrically isolated from the power circuits thus protecting sensitive computer equipment.

Using the RS485 multi-drop mode of operation up to 11 Powerterm LC90’s can be connected to a single Modbus Master communications port (Master + 10 slave modules).

AUTOMATIC REFERENCE CONTROL

Both models include a fully configurable controller for automatic control of Reference potential. The Proportional Gain and Reset constants of the controller can be adjusted for optimum control dependent upon the installation conditions.

Independent Current and Voltage Limit settings ensure that safe operating conditions selected by the user are not exceeded in automatic modes.

HALF_CELL REFERENCE INPUT

The Powerterm LC90 has a high-impedance (>100Mohm) half-cell reference input for monitoring or control purposes.

This reference input is buffered and reference is selected from one of the 15 inputs available on C6333 Multiplexer Board. Up to 6 of these boards can be plugged into the module thus allowing reference voltage monitoring of up to 90 references. Each reference input is relay switched only when reading, minimising the current drain on the cells and ensuring longest life.

ALARM CONTACT

An Alarm contact output can be used to give an independent signal of problems in the cathodic protection system.

ANTENNA INSTALLATION (on some models)

In most applications the GSM network reception at the site of the system should be adequate for reliable communications using the stub antenna supplied with the LC90.

INSTANT OFF OUTPUT

The Powerterm LC90 output can be transmitted over RS485 network to multiple C2152 TR’s for “Instant Off” system testing.

OPERATOR INTERFACE

A range of companion touch screen PowerView CP Operator Interface Panels are available for interacting with up to 32 Powerterm L120P T/R units. All variables can be monitored via this operator interface, and configuration settings can be changed through password protected screens.

Further Literature 
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