Altivar 312 Variable Speed Drives Page 24 Specifications

24 Specifications I/O & Control Altivar 312 variable speed drives I/O & Control specifications Available internal supplies Protected against short-circuits and overloads: One 10 V c (0/+ 8%) supply for the reference potentiometer (2.2 to 10 k W ), maximum current 10 mA One 24 V c supply (min. 19 V, max. 30 V) for the control logic inputs, maximum current 100 mA Analog inputs Sampling time < 8 ms Resolution: 10 bits Accuracy: 4.3% Linearity: 0.2% of the maximum scale value Use: 330 ft. (100 m) maximum with shielded cable 82 ft. (25 m) maximum with unshielded cable Al1 One 0...10 V c analog voltage input , impedance 30 k W , maximum voltage 30 V Al2 One 10 V bipolar voltage analog input, impedance 30 k W , maximum voltage 30 V Al3 One X-Y mA analog current input, X and Y programmable from 0 to 20 mA, with impedance 250 W Analog voltage outputs or analog current outputs configurable as logic outputs 2 analog outputs: 1 analog voltage output (AOV) 1 analog current output (AOC) configurable as a logic output. These 2 analog outputs cannot be used at the same time AOV 0...10 V c analog voltage output, min. load impedance 470 W 8-bit resolution, accuracy 1%, linearity 0.2% of the maximum scale value AOC 020 mA analog current output, max. load impedance 800 W 8-bit resolution, accuracy 1%, linearity 0.2% The AOC analog output can be configured as a 24 V logic output, max. 20 mA, min. load impedance 1.2 kW Refresh time < 8 ms Relay outputs R1A, R1B, R1C 1 relay logic output, one N/C contact and one N/O contact with common point Minimum switching capacity: 10 mA for 5 V c Maximum switching capacity: On resistive load (cos = 1 and L/R = 0 ms): 5 A for 250 V a or 30 V c On inductive load (cos = 0.4 and L/R = 7 ms): 2 A for 250 V a or 30 V c Sampling time < 8 ms Switching: 100,000 operations R2A, R2B 1 relay logic output, one N/C contact, contact open on detected fault. Minimum switching capacity: 10 mA for 5 V c Maximum switching capacity: On resistive load (cos = 1 and L/R = 0 ms): 5 A for 250 V a or 30 V c On inductive load (cos = 0.4 and L/R = 7 ms): 2 A for 250 V a or 30 V c Sampling time < 8 ms Switching: 100,000 operations LI logic inputs LI1LI6 6 programmable logic inputs, compatible with PLC level 1, standard IEC/EN 61131-2 Impedance 3.5 kW 24 V c internal or 24 V c external power supply (min. 19 V, max. 30 V) Max. current: 100 mA Sampling time < 4 ms Multiple assignment makes it possible to configure several functions on one input (example: LI1 assigned to forward and preset speed 2, LI3 assigned to reverse and preset speed 3) Positive logic (Source) State 0 if < 5 V or logic input not wired State 1 if > 11 V Negative logic (Sink) State 0 if > 19 V or logic input not wired State 1 if < 13 V CLI position Connection to PLC output Maximum I/O wire size and tightening torque 2.5 mm 2 (AWG 14) 0.6 Nm

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