Altivar 71 And Altivar 71 Plus Variable Speed Drives Page 38 Accessories and Options

38 Altivar 71 variable speed drives Encoder Interface Cards Accessories & Options Encoder interface cards Encoder interface cards are used for Flux Vector Control operation with sensor (FVC mode) for asynchronous motors, or for Vector Control operation with speed feedback (FSY mode) for synchronous motors. They improve drive performance irrespective of the motor load state: b Zero speed torque b Accurate speed regulation b Torque accuracy b Shorter response times on a torque surge b Improved dynamic performance in transient state For asynchronous motors, in the other control modes (voltage vector control, voltage/ frequency ratio), encoder interface cards improve static speed accuracy. Encoder interface cards can also be used for: b Overspeed detection b Load slipping detection They can also transmit a reference provided by the encoder input to the Altivar 71. This use is specific to synchronizing the speed of several drives. These two functions are available for encoder interface cards VW3A3401 to VW3A3407 and VW3A3411. Six types of card are available depending on the encoder technology (incremental or absolute): b RS 422 compatible differential outputs b Open collector outputs (NPN) b Push-pull outputs b Resolver (1) b SinCos, SinCos Hiperface , EnDat or SSI output (1) b RS 422 compatible differential outputs with encoder emulation (RS 422 ESIM) The RS 422 ESIM (Encoder SIMulation) encoder interface card is used to indicate the position and speed of the motor to a motion controller via the RS 422 interface ESIM output. It is also used to establish a master/slave relationship between two Altivar 71 drives. The Altivar 71 variable speed drive can only take one encoder interface card. The interface encoder card is inserted in a dedicated slot. It is protected against short circuits and overloads. h t i w d e s U n o i t p i r c s e D encoder Voltage Maximum current Maximum cable length Maximum operating frequency Part number Weight g k s b l z H k m t f A m V Encoder interface card with RS422 compatible differential outputs XCC1 ppppppp X XCC1 ppppppp R XCC1 ppppppp RN 5 200 164 50 300 VW3A3401 0.4 0.2 XCC1 ppppppp X 15 175 328.1 100 300 VW3A3402 (2) 0.4 0.2 Encoder interface cards with open collector outputs - 12 175 1640.4 500 300 VW3A3403 0.4 0.2 15 175 1640.4 500 300 VW3A3404 0.4 0.2 Encoder interface cards with push-pull outputs XCC1 ppppppp Y 12 175 1640.4 500 300 VW3A3405 0.4 0.2 XCC1 ppppppp K 15 175 1640.4 500 300 VW3A3406 0.4 0.2 XCC1 ppppppp KN 24 100 1640.4 500 300 VW3A3407 0.4 0.2 Resolver encoder interface card - 1.255.6 50 656.2 200 4, 8 or 12 VW3A3408 (1) 0.2 0.1 Universal encoder interface card with SinCos, SinCos Hiperface , EnDat or SSI output - 5, 8 or 12 200 164 50 500 VW3A3409 (1) 0.4 0.2 Encoder interface cards with RS 422 compatible differential outputs with encoder emulation - 5 200 164 50 300 VW3A3411 0.4 0.2 15 200 328.1 100 (1) Card requires an ATV71H ppp N4383 drive. (2) The VW3A3402 card ensures compatibility between Altivar 68F drive applications and Altivar 71 drive applications. Encoder interface card VW3A3401

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