FT50 PRIMARY RESISTOR
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LMR PLUS Electric Fire Pump Controllers with Transfer Switch Features January 2012 FT50 Reduced Voltage - Primary Resistor Electrically and Mechanically Interlocked The FT Series transfer switch operating mechanisms are mechanically interlocked to prevent the normal and alternate source from connecting at the same time. The switch operates upon signals received from the ATC-300 Plus controller. 1-1 Automatic Transfer The FT Series Transfer Switches will perform an automatic transfer from Normal to Alternate source when the Voltage drops to 85% of normal, or there is a loss of any phase and/or Phase Reversal. ATC-300 Plus Product Description The Automatic Transfer Switch Option may be added to any FD type Fire Pump Controller whenever automatic transfer from normal to alternate power is required. The automatic Transfer Switch and Fire Pump Controller are mounted in the same enclosure or in separate enclosures to form one unit and interwired - depending on the horsepower and voltage required. Engine Test Button An engine test button is provided on the ATC300 controller that can be used to test the Source 2 (generator) engine. The operator can select the engine run test time (0-600 minutes). As well, a silence pushbutton is provided which de-energizes the alarm bell. The panel mounted, multi-function, microprocessor based ATC-300 Plus controller accurately monitors two power sources and provides the necessary intelligence to reliably operate the transfer switch through a series of programmed sensing and timing functions. Keypad Programming The ATC-300 Plus controller membrane is equipped with seven keypad input buttons which are used to program the controller as well as set operating parameters. LED Status Indication Five LED’s indicate the status of the power sources. Source 1 Available Source 1 Connected Source 2 Available Source 2 Connected Unit Status Voltage and Frequency Sensing The ATC-300 Plus continuously monitors the normal source for out of range setpoint values. When the source is outside the dropout setpoints, the source will become unavailable. This prompts a transfer to the alternate source. Retransfer occurs when the normal source’s frequency and/or voltage return within pickup setpoints. Alarm Relay The alarm relay is de-energized to indicate an absence of an alarm state and energized to indicate the presence of an alarm condition. Alarm conditions include: Improper Circuit Breaker Operation Motor Operator Failure Lockout Failsafe Condition Aborted Engine Test Aborted Plant Exerciser Unsuccessful in-phase Transition Product Features Power I/O Board The FT50 Transfer Switch Controller is selected when it is necessary to meet limitations on inrush current. A resistor is inserted in the power supply to the motor for a smooth acceleration. The main contactor by-passes the resistor after a short acceleration time and applies full voltage to the motor terminals. Starting line current is 65% of the across-the-line starting inrush (approximately 390% of rated full load amperes). The FT50 can be programmed for either fully automatic or semi-automatic operations. Transformers Logic Controller Board Communication The controller can be ordered with the option to display and output current values and status, on command, from various software protocols through the appropriate port(s). Embedded Web Page The web page is a multifunction tool that allows the user to view the controller’s current status, data values, programmed set points and history. It is accessed using the optional ethernet port. Incoming line voltage is run directly to the I/O board from the incoming lines. The three transformers mounted on the I/O board will accept voltage inputs between 100 and 600V. Customer Connection Terminals Connection terminals for external customer connections, are located on the top of the Power I/O board. Ethernet Port An optional ethernet port is used for direct connection to a computer for data transfer. RS485 Serial Port An optional RS485 serial port can be provided for communication to various external software programs. Buzzer A buzzer is mounted on the logic board which will operate if Fail to Start, Hardware Malfunction or any Common Alarm condition exists. USB Port / USB Drive The logic controller board is equipped with a USB port that can be used to transfer data to and from a portable USB Drive device (memory stick). Output Relays Seven socket mount, 8 Amp, 2 Form - C (DPDT) output relays are provided standard on each power I/O board. They are designated for: Common Alarm, Phase Failure, Phase Reversal, Pump Run, Startup, Acceleration and Future # 1. Each socket has an LED mounted on the I/O board which indicates each relay’s coil status. Optional Output Relay Boards There is provision to add up to eight additional relay outputs, via optional relay output boards. Each board contains a maximum of 2 additional relays. The Power I/O Board will accept a maximum of 4 optional boards which mount in a snap-on conguration. Each board provides an area for the user to label the terminal number and relay name. For more information visit: www.chfire.com BR05805060K/L

LMR PLUS Electric Fire Pump Controllers with Transfer Switch Features January 2012 FT50 Reduced Voltage - Primary Resistor Door Mount The membrane keypad is accessible from the front door of the controller. NEMA Rating The standard membrane keypad is rated for NEMA 2, 3R, 4, 4X and 12. MAIN DISPLAY General The main display will show the current system pressure, time and date, voltage and amps reading for all three phases, the system frequency and any custom messages, alarms or timers. 1-2 Firmware Update Firmware revisions are updated from an external USB drive. All previously programmed...

LMR PLUS Electric Fire Pump Controllers with Transfer Switch Features FT50 Reduced Voltage - Primary Resistor 1-3 January 2012 Product Features Programming Menu General The LMR Plus programming menu is divided into 8 different sub-menus. Each sub-menu contains information relative to it’s particular function. A brief description of each sub-menu is listed below. Language The language sub-menu allows the user to select English, French or Spanish or Other languages to be viewed on the LCD Display. Several other languages can be uploaded into the controller. Contact the factory for details....