AC890 Product Overview - Grp6.com

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AC Drives and Power FactorAC INPUT P.F. = .96Motor P.F. = .70(Light Load)ACInputREACTIVEFLOWM12AC Drives inherently correct motor Power Factor• Reactive current bi-directionally flows between the inductive motor and bus capacitors.• Input PF has no relationship to motor PF.• Since input current is in-phase with voltage, input displacement PF is always near unity.Never use power factor correction capacitors with AC Drives!!!
Power Factor on AC and DC Drives.96.85ACOn AC Drives, input displacementpower factor remains nearlyconstant with speed & load.POWERFACTOR.30DCOn DC Drives, power factor variesdirectly with SCR phase-firingangle, peaking near .85 .Since power increases linearlywith speed, the effects of lowpower factor at low speed arenegligible.20%SPEED100%13
Page 1: AC890 Product OverviewCALL 800-433-
Page 4 and 5: ProgrammingPort USBAll Control Conn
Page 6 and 7: I/O Terminal Interface Module - NEW
Page 11: Basic SSD Drives AC Power CircuitBR
Page 15 and 16: Basic V/HZ Control Circuit:Input, F
Page 17 and 18: 17Autotuning on Sensorless Vector D
Page 19 and 20: AC VECTOR CONTROL LOOPSAC Vector Dr
Page 21 and 22: Motor Current VectorsMagnetizingCur
Page 23 and 24: Conditions for Regenerating onan AC
Page 25 and 26: Dynamic Braking on AC DrivesACInput
Page 27 and 28: Line Regenerative AC DrivesBI-DIREC
Page 29 and 30: Common Bus Drive Power Connections:
Page 31 and 32: Input Power ConfigurationsParallel
Page 33 and 34: Typical System:135HP Common Bus350
Page 35 and 36: Common Bus Adapter Module Connectio
Page 37 and 38: AFE Power Connections:Common Drive(
Page 39 and 40: Line Regenerative SolutionsLarger A
Page 41 and 42: Easy set-up using DSEconfiguration
Page 43: Performance LevelsAC890 can deliver
Page 46 and 47: Duct Assembly Option - ExampleSizin
Page 48 and 49: 6901 Keypad OptionThe 6901 keypad (
Page 50 and 51: Speed Feedback OptionsFeedback Type
Page 52 and 53: Incremental (Pulse) EncoderPerforma
Page 54 and 55: Sin / Cos Encoder Option• Samplin
Page 56 and 57: Option CardsSin/Cos Encoders• Inc
Page 58 and 59: Option CardsSin/Cos Encoders• Abs
Page 60 and 61: Communication OptionsComms Type Use
Page 62 and 63:
Electronic Line Shaft ControlSoluti
Page 64 and 65:
PLC FriendlyTypical 3-drive AC890 s
Page 66 and 67:
AC890PXHigh PowerModular ACDrives
Page 68 and 69:
• Each bay location holds 1 Power
Page 70 and 71:
POWER ENTRY TYPESTOP POWEREntry / E
Page 72 and 73:
Dynamic Braking - Standard!Dynamic
Page 74 and 75:
Three uses of Active Front End arch
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1500 HP Parallel 890PX w/ Circuit B
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AC890 Product Overview - Grp6.com

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