communications bus. A sleep mode shall be included in the PID functions. This feature shall allow the motor to be stopped when at minimum speed for a user defined period, for additional energy savings. Two (2) programmable analog inputs shall accept a current or voltage. Analog inputs shall include a filter to remove any oscillation in the input signal. The minimum and maximum values (gain and offset) shall be adjustable within the range of 0 - 20 ma and 0 - 10 Volts. Additionally, the reference must be able to be scaled so that maximum reference can represent a frequency less than 60 Hz, without lowering the drive maximum frequency below 60 Hz. Process variables shall be capable of being inverted. Six (6) programmable digital inputs for maximum flexibility in interfacing with external devices. One digital input is to be utilized as a customer safety connection point for fire, freeze, and smoke interlocks (Enable). These inputs can also be used to activate the setpoints of individual control loops. Two (1) programmable analog output proportional to Frequency, Speed, Output Voltage, Output Current, Motor Torque, Motor Power (kW), DC Bus voltage, Active Reference, and other data. Three (3) programmable digital relay outputs. The relays shall be rated for maximum switching current 8 amps at 250 VAC and 0.4 A at 125 VAC. Outputs shall be full form C relay contacts; open collector outputs are not acceptable. Fifteen (15) programmable preset speeds. Two independently adjustable accel and decel ramps. These ramp times shall be adjustable from 1 to 3600 seconds. The VFD shall Ramp or Coast to a stop, as selected by the user. The displayed operating information shall be user selectable and include up to nine parameters which can be viewed and monitored at one time. Up to 20 parameters shall be user selected for storing in a user grouping for ease of configuration and customization. All applicable operating values be displayed in engineering (user) units. The keypad shall include a backlit LCD display. The display shall be in complete English words for programming and fault diagnostics. The keypad shall utilize wizards to help navigate your HVAC application. These wizards will walk you through the steps required for PID set-up, Start-up and Multi-pump applications.
communications bus. A sleep mode shall be included in the PID functions. This feature shall allow the motor to be stopped when at minimum speed for a user defined period, for additional energy savings. Two (2) programmable analog inputs shall accept a current or voltage. Analog inputs shall include a filter to remove any oscillation in the input signal. The minimum and maximum values (gain and offset) shall be adjustable within the range of 0 - 20 ma and 0 - 10 Volts. Additionally, the reference must be able to be scaled so that maximum reference can represent a frequency less than 60 Hz, without lowering the drive maximum frequency below 60 Hz. Process variables shall be capable of being inverted. Six (6) programmable digital inputs for maximum flexibility in interfacing with external devices. One digital input is to be utilized as a customer safety connection point for fire, freeze, and smoke interlocks (Enable). These inputs can also be used to activate the setpoints of individual control loops. Two (1) programmable analog output proportional to Frequency, Speed, Output Voltage, Output Current, Motor Torque, Motor Power (kW), DC Bus voltage, Active Reference, and other data. Three (3) programmable digital relay outputs. The relays shall be rated for maximum switching current 8 amps at 250 VAC and 0.4 A at 125 VAC. Outputs shall be full form C relay contacts; open collector outputs are not acceptable. Fifteen (15) programmable preset speeds. Two independently adjustable accel and decel ramps. These ramp times shall be adjustable from 1 to 3600 seconds. The VFD shall Ramp or Coast to a stop, as selected by the user. The displayed operating information shall be user selectable and include up to nine parameters which can be viewed and monitored at one time. Up to 20 parameters shall be user selected for storing in a user grouping for ease of configuration and customization. All applicable operating values be displayed in engineering (user) units. The keypad shall include a backlit LCD display. The display shall be in complete English words for programming and fault diagnostics. The keypad shall utilize wizards to help navigate your HVAC application. These wizards will walk you through the steps required for PID set-up, Start-up and Multi-pump applications.
BT300-VFD-for-inserting-into-bas-spec-230900.docx