25C-D037N114

The Allen-Bradley 25C-D037N114 adjustable frequency AC drive is a compact, efficient drive that is used for implementing motor control. Adjustable Frequency AC drives or Frequency Inverters as called by others, implements speed control using a specific control method. The 25C-D037N114 is capable of Volts / Hertz (V/F), Sensorless Vector Control (SVC) and Economizer Sensorless Vector Control. These control methods varies frequency to modulate the connected AC motor’s speed. This drive is also capable of position and vector control using the integral support for Closed Loop Position Vector Control method coupled with an option encoder feedback module.

The 25C-D037N114 has embedded I/O terminals that is composed of Four (4) Programmable sink / source inputs; Two (2) Relay outputs composed of One (1) Form A and One (1) Form B contact outputs; Two (2) Programmable Opto-coupler outputs; Two (2) isolated analog input channels compatible with ±10V and 4-20 mA and One (1) non-isolated analog outputs that delivers 0-10V or 4-20 mA. The analog input and output resolutions is 10-bit. External potentiometer may also be installed to locally vary the output frequency of the drive. Appropriate potentiometer is 1-10k ohm, 2 W min.

The 25C-D037N114’s electrical specifications include an input voltage range of 380-480VAC, 3-phase along an input frequency of 47-63 Hz. It has a displacement Power Factor of 0.98 and across entire speed range and short circuit rating of 100,000 Amps Symmetrical. This drive delivers an output voltage of 0-460VAC, 3-Phase, with rated Current of 37.0 A and Power of 18.5 kW (25.0 HP) for normal duty and 15.0 kW (20.0 HP) for heavy duty operation.

The control I/O of the 25C-D037N114 drive are 4 24V DC digital inputs (with 3 of them programmable), 2 digital outputs, and 2 analog inputs. It is ideal for various open loop speed regulation applications, including conveyors, fans, pumps, chillers, etc. Its approximate dimensions are 11.81 x 7.28 x 10.98 inches and it has an IP20 NEMA/Open-type enclosure rating. Its output current is 37 A and it has a power rating of 380-480V AC. It also comes with a maximum output frequency of 590 Hz and a carrier frequency of 2-8 kHz, with a default frequency of 4 kHz. At normal duty, it has a Hp of 25 and a kW of 18.5, while at heavy duty, its Hp is 20 and kW is 15. It has an operating temperature of -20-50 oC and a maximum operating altitude of 4000 m or 13,123 ft. The control methods of the 25C-D037N114 drive are the sensorless vector control, the volts per hertz control, and the closed loop velocity vector control. Other control features of this drive include V/F ratio, common DC bus, flying start, process PID, and bus regulator.