About the 6V21-4P2TA
6V21-4P2TA is a GV6000 AC Drive that is manufactured by Reliance Electric. The nominal duty horsepower is 1, the continuous amps are 4.2, and the frame is 0. This drive has a 240 VAC input and is enclosed in a NEMA 1 enclosure. A braking transistor comes standard on this unit. The I/O is 24 VDC. A number of parameters can be autotuned by the following tests: the flex current test, the IR voltage drop test, the leakage inductance test, and the inertia test. The drive is protected from overload and overcurrent situations by the termal manager, the overload protection, the heatsink temperature protection, the software current limit, the software instantaneous trip, and the instantaneous overcurrent trip. The drive can operate in economizer mode, which is sensorless vector control mode with an energy saving function (E-SVC).
The drive should be identified by its model number. “6V” indicates that the unit is a part of the GV6000 AC Drive Family. The next digit indicates the input voltage: 2 = 230 VAC, 4 = 460 VAC, 5 = 575 VAC, G = 325 VDC (without pre-charge), J = 650 VDC (without pre-charge), K = 810 VDC (without pre-charge), N = 325 VDC (with pre-charge), R = 650 VDC (with pre-charge), T = 810 VDC (with pre-charge). The next number is always 1, which indicates that the drive has a NEMA 1 air-cooled enclosure. The next three digits indicate the continuous output amps. The next letter is either T or N. T means that the drive includes a braking transistor, and N means that there is no braking transistor. The last letter is either A (24 VDC) or B (115 VAC - user supplied).
