Download AN-GS-014: Mine elevator application note using GS3 drive
Transcript
Application note - DURApulse Drives AN-GS-014 AN-GS-014 We will select the sensorless vector method with feedback, to have a better torque behavior, which is needed to perform the cycle consistently every time. The motor heating calculation should be verified with the method of RMS power during a complete cycle, or other method, shown later in this note. The line reactor to be used is the GS-4100-LR, for 460 Volt, and the fuse kit including the fuses is the GS-4100-FKIT. Please note that the fuse is sized for 600A, 600 Volt and is fast blow, to protect the drive and not the wire feeding the drive; In general the branch circuit fusing is of a lower rating than that sized to protect the AC drive. Next we show the Durapulse wiring diagram for this specific application. PLC input module DURAPULSE Multi-function Digital Inputs: PLC controlling elevator: Output Contact: +24V Power Source (20mA max.) Going up/Stop DI1 Going down/Stop DI2 External Reset DI3 Multi-Speed 1 DI4 Multi-Speed 2 DI5 JOG DI6 R1 R1C Input Mode Setting R1O Sink To - of 24 V power supply SW1 Source Digital Outputs: DO1 AC Drive Fault DO2 At Speed DI7 External Fault (N.C.) AC Drive Running DI8 DO3 DI9 Encoder loss DI10 DI11 DCM Digital Signal Com. DOC Digital Output Com. Digital Output Com. - + Power supply 24 VDC Analog Inputs: +10V Power Source (20mA max.) AO AI1 (0 to 10V) Multi-function Analog Output: Scale 0-10VDC Indicates Output + Current of VFD – ACM 0-10VDC @2mA L1 L2 L3 + +2 - T1 T2 T3 Motor Incoming supply Braking unit 480V+-10% (60Hz+-5%) Overtemperature Resistor GS3-FB OC 12V Motor outlet A A B B VP DCM OC=Open collector TP=totem pole TP 5V A B PG +12V GND Encoder output 12VDC Note that it is necessary to determine the motor parameters for use with sensorless vector control. This is done with the auto-tuning procedure. The auto-tuning procedure should be done during the start up procedure. This is not described here. Refer to the auto-tune procedure in Chapter 3 of the DURApulse user manual. THIS INFORMATION PROVIDED BY AUTOMATIONDIRECT.COM TECHNICAL SUPPORT IS SUPPLIED “AS IS”, WITHOUT ANY GUARANTEE OF ANY KIND. 3