Altivar 71 And Altivar 71 Plus Variable Speed Drives Page 40 Accessories and Options

40 Altivar 71 variable speed drives I/O Extension Card Options Accessories & Options Specifications of Option Card VW3A3201 Control Terminals Designation Terminal Specification Relay output 3 (R3A N.O. contact, R3B N.C. contact) R3A R3B R3C Switching capacity min. 3 mA at 24 Vdc Switching capacity max. 5 A at 250 Vac (cos j = 1) or 30 Vdc, max. 2 A at 250 Vac (cos j = 0.4) or 30 Vdc (L/R = 7 ms) Reaction time 7 ms 0.5 ms, typical life cycle of 100.000 switching cycles at max. switching capability Sampling voltage must correspond to overvoltage category II so that the PELV conditions for the remaining control terminals are fulfilled. Voltage supply for potentiometer 1-10 k W -10 -10 Vdc (-10.5 V0.5 V) max. 10 mA; short circuit protected Sampling voltage for logic inputs (Sink/Source-switching is selected with selector switch SW3.) +24 Selector switch SW3 in position Source or Sink Int.: +24 Vdc (min. 21 V, max. 27 V), short circuit protected max. 50 mA (for basic device and options) Selector switch SW3 in position Sink Ext.: Input for external voltage supply +24 Vdc of the logic inputs Logic inputs LI7-LI10 (Usage can be specified with parameter settings. Sink/Source-switching is selected with selector switch SW1.) LI7 +24 Vdc (max. 30 V), impedance 3.5 k W , reaction time 2 ms 0.5 ms Positive logic (Source) or negative logic (Sink) Compatible with Level 1 PLC Standard IEC 65A-68 SW3 at Source (factory setting): High > 11 Vdc, Low < 5 Vdc SW3 at Sink Int. or Sink Ext.: High < 10 Vdc, Low > 16 Vdc LI8 LI9 LI10 Ground 0 V 0 V reference potential for logic inputs Thermistor input 2 TH2+ TH2- For a maximum of 6 PTC thermistors in series (1) Thermistor nominal value < 1.5 k W , threshold value 3 k W Disengaging value 1.8 k W , short-circuit monitoring at < 50 W Logic output LO1 (Usage can be specified with parameter settings.) LO1 +24 Vdc open collector outputs, floating ground Positive logic (Source) or negative logic (Sink) Compatible with Level 1 PLC Standard IEC 65A-68 Switching capacity max. 200 mA at 12-30 Vdc Reaction time: 2 ms 0.5 ms Logic output LO2 (Usage can be specified with parameter settings.) LO2 Common CLO Reference potential of the logic outputs Ground 0 V 0 V general use (1) Shield the wiring and lay the cables separate from the motor cable.

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