SCADA Solutions Since 1981

Telemetry Control Unit (TCU)

The TCU combines Automated pump control functions with advanced
SCADA communications to provide a powerful, price-competitive solution.

DFS is an industry leader in providing pump controllers for thousands of pumping stations installed and operating nationwide. The Telemetry Control Unit (TCU), a SCADA ready pump controller, is designed specifically for level management applications such as Sewer Pump Stations, Lift Stations and Water Storage Tanks.

* Pump Controller-based RTU

* Integrated SCADA Communication

Easy to Understand, Install & Use

* Incredible Built-in Features

Intuitive Pump Motor Protection

* Free Factory Support for Life

The Telemetry Control Unit (TCU) is a state-of-the-art pump controller designed to automate the operation of simplex, duplex and triplex sewer pumping stations. The TCU provides "off-the-shelf" control of a typical fixed speed pumping station. The TCU is also customizable for Variable Frequency Drive (VFD) applications.

The TCU contains all of the necessary hardware and software to control pumps based on level input from floats, bubblers, or pressure transducers. An integrated True RMS AC phase monitor provides accurate three-phase voltage readings and under/overvoltage motor protection. Its intuitive operator interface presents the operation menu, set-point adjustment, fault resets, and status indication. The H.O.A. switches are fail-safe and remain functional even if the TCU is not powered.

SCADA-ready with open Modbus RTU and ASCII protocols, the TCU is also available with optional factory integrated TAC II synthesized radio, network interface adapter, telephone autodialer, or a Verizon cellular modem.

When utilized in the DFS TAC II SCADA System, TCU’s are used to coordinate the system-wide operation of sewer pumping stations for the purpose of reducing force main pressures and equalizing flow into a wastewater treatment plant. The result is a significant reduction in energy costs and a solution to daily peak-flow problems.

Models

TCU001 (Telemetry Control Unit)
TAC Pack TCU (TCU with integrated synthesized radio)
TCU001-IP (TCU with integrated network interface)
TCU001-AD (TCU with integrated autodialer)
TCU001-C: TCU001 with integrated Verizon cellular modem (requires monthly data plan)

Features

Easy to understand, install and use
No PLC knowledge required
Multiple operation profiles
Redundant level sensing
Configurable pump alternation
Digital elapsed time meters
True RMS 3-phase monitoring
Alarm light and horn control
Back-up battery & charger
Free TCU configuration software
Upload/download settings with Laptop
Configurable via on-board keypad
Free factory support for life of product
Three year parts and labor warranty
Three year lightning damage warranty
Expandable I/O Interface
RS-485 Modbus Serial Radio Interface
Customizable for VFD applications

Operator Interface

The TCU’s large 4-line x 20-character LCD and 12-button keypad provide an operator interface for configuring the TCU, viewing status, and viewing and resetting alarms. An onboard temperature sensor controls the LCD’s contrast to ensure that the LCD screen is easy to read in both high and low temperature conditions.

Technical Specifications

Dimensions	5.75" X 8.75" X 5.45"
Supply voltage	120VAC +/-10%
Frequency	60 HZ
Current	0.5A
Power consumption	20 Watts (with integrated Radio)
3-Phase monitor	240 VAC / 480 VAC using external resistors
Battery backup	12 VDC
Analog inputs	4-20mA@250ohm /1-5V @100Kohm; both inputs are 12-bit accurate
Digital input voltages	10 - 30 volts AC/DC ~ 30 - 300 volts AC/DC with external resistors
Digital input impedance	6K ohms
Digital outputs	120-240VAC, 60HZ, 1A, Pilot Duty
Bias	100 mA
RS-232 interface	9600 baud serial interface for radio connection Default Settings: ASCII protocol, 9600 baud, 7 data bits, Odd parity, 2 stop bits Optional Settings (must be set at the factory): RTU protocol, 9600 baud, 8 data bits, E/O/N parity, 1 stop bit
RS-485 interface	9600 baud serial interface for communication to Modbus ASCII devices
ISO+24V / ISOGND	24 VDC at 60 mA (100 mA max), unregulated, isolated
Input protection	M.O.V., Transorb (Transient Voltage Suppressor), and Opto-isolated
Alarm relays	120VAC, 60HZ, 0.5A, Tungsten
Alarm light / horn	Normally closed contacts
LCD w/keypads	Liquid Crystal Display; keypad is used to page through programmed menu items
LEDs	34 LEDs provide system status at a glance: AC Power Status, CPU Fault Status, RX Data & TX Data Status, Alarm Status, Digital Input Status (12), Digital Output Status (6), Pump Run Status (3), Well Level Status (8)
H-O-A switches	3 x 3-position switches hardwired to 3 solid state control points for HOA operation
Environmental conditions	Ambient operating temperature range:-10°C (14°F) to 60°C (140°F). The upper temperature limit is 50°C (122°F) when using the recommended backup battery. Note that the LCD display may become unreadable at temperatures below 0°C. Relative humidity: 0-100% Atmospheric pressure: 75-106 KPa Overvoltage Category II Pollution Degree 2
Surge Tested	EMI Suspectibility to IEC61000-4-5 Surge Immunity Tests
Safety Approval	UL listed for Process Control Equipment (UL1092)
Service Port	RS-232 interface for diagnostics, configuration storage, and updating. Configuration files can be transferred between the TCU and a computer.

Warranty

Three (3) Year Return to Factory Warranty covers defective parts, workmanship and lightning damage .