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CONSTRUCTION (continued) Controlled speed range of 40:1 <br /> Microprocessor based control circuit Critical frequency rejection capability: 3 selectable, adjustable <br /> bandwidths <br /> Non-Volatile memory(NV RAM); all programming memory is <br /> saved when the VFD is disconnected from power. 100%starting torque capability, available from 3 Hz to 60 Hz <br /> Current transformers detect the output current for motor control Remote speed reference(speed command)signal: <br /> and protective functions 0 to 10 VDC (20 kf2) <br /> Digital operator keypad and display,with copy function, 4 to 20 mA DC(250 Q) <br /> provides local control and readout capability: <br /> Hand/Off/Auto commands Adjustable carrier frequency, from 1 kHz to 12.5 kHz <br /> Speed Reference command Dynamic noise control for quiet motor operation <br /> Reset command Programmable security code <br /> Easy to remove heat sink cooling fan with programmable on/off 7 programmable multi-function input terminals(24Vdc) <br /> control providing 60+programmable features, including: <br /> USB Type B port for quick and easy PC Connection Customer Safeties <br /> BAS/Damper Interlock <br /> PRODUCT FEATURES <br /> Emergency Override <br /> Displacement power factor of.98 throughout the motor speed Preset Speed <br /> range <br /> Input phase insensitive; sequencing of the three phase input is PI control enable/disable <br /> unnecessary 3 programmable multi-function output relays (Form A rated 2 <br /> Internal EMI/RFI filter complies with IEC 61800-3 restricted amps @ 250Vac&30Vdc), providing 50+functions, including: <br /> distribution for first environment Damper control <br /> Built-In real time clock for time and date stamping events along Hand/Auto Status <br /> with timer functions for starting, stopping and speed changes <br /> without the need for external controls Contactor Control for External Bypass <br /> Volt meter, ammeter, kilowatt meter elapsed run time meter Overtorque/undertorque detection <br /> and heat sink temperature monitoring functions Serial communication status <br /> Two internal(PI)Controls No load detection (broken belt alert) <br /> 1. Drive internal PI closed loop control with One fixed"Fault'form C output relay(Rated 2 amps @ <br /> selectable engineering units 250Vac&30Vdc) <br /> 2. Independent PI control for use with external <br /> device 7 preset speeds <br /> Differential PI feedback feature Built-in BACnet protocol along with Modbus/Memobus. <br /> Protocol are accessible via RS-422/485 communication, which <br /> Sleep function in both closed loop and open loop control is standard <br /> Feedback signal low pass filter Stationary motor auto-tuning <br /> Feedback signal loss detection and selectable response "Kinetic Energy Braking"(KEB)function stops the motor in up <br /> strategy to half the time it would take without this function. <br /> Feedback signal inverse and square root capability LCD keypad: Hand/Off/Auto functions with a built-in copy <br /> 24 Vdc, 150ma transmitter power supply feature, <br /> Input and output terminal status indication Motor preheat function <br /> Diagnostic fault indication Flash upgradeable firmware <br /> VFD efficiency: 96%at half-speed; 98%at full-speed Customizable monitor display <br /> "S-curve"soft start/soft stop capability Heat sink over temperature speed fold-back feature <br /> Run/Fault output contacts "Bumpless"transfer between Hand and Auto modes <br /> Serial communication loss detection and selectable response Emergency override can be used as"smoke purge"function <br /> strategy Fan failure detection and selectable drive action <br /> "Up/Down"floating point control capability <br /> 2/2/2017 5/11 <br />