Altivar 71 And Altivar 71 Plus Variable Speed Drives Page 14 Specifications

14 Altivar 71 variable speed drives I/O & Control Specifications Analog input AI1-/AI1+ 1 bipolar differential analog input 10 V c (maximum voltage 24 V). Max. sampling time: 2 ms 0.5 ms. Resolution: 11 bits + 1 sign bit. Accuracy: 0.6% for a temperature variation of 60C. Linearity: 0.15% of maximum value. AI2 1 software-configurable voltage or current analog input: Voltage analog input 0...10 V c , impedance 30 k W (max. voltage 24 V) Current analog input X-Y mA by programming X and Y from 0 to 20 mA, with impedance 242 W Max. sampling time: 2 ms 0.5 ms. Resolution: 11 bits. Accuracy: 0.6% for a temperature variation of 60C. Linearity: 0.15% of maximum value. Other inputs Available on I/O option cards. Analog output AO1 1 analog output software-configurable for voltage or current or as a logic output: Voltage analog output 0...10 V c , min. load impedance 470 W Current analog output X-Y mA by programming X and Y from 0 to 20 mA, max. load impedance 500 W Max. sampling time: 2 ms 0.5 ms. Resolution: 10 bits. Accuracy: 1% for a temperature variation of 60C. Linearity: 0.2%. Logic output: 10 V, 20 mA maximum Other outputs Available on I/O option cards. Relay outputs R1A, R1B, R1C 1 relay logic output, one "N/C" contact and one "N/O" contact with common point. Minimum switching capacity: 3 mA for 24 V c . Maximum switching capacity: On resistive load (cos j = 1): 5 A for 250 V a or 30 V c On inductive load (cos j = 0.4 and L/R = 7 ms): 2 A for 250 V a or 30 V c Max. response time: 7 ms 0.5 ms. Electrical service life: 100,000 operations. R2A, R2B 1 relay logic output, one "N/O" contact. Minimum switching capacity: 3 mA for 24 V c . Maximum switching capacity: On resistive load (cos j = 1): 5 A for 250 V a or 30 V c On inductive load (cos j = 0.4 and L/R = 7 ms): 2 A for 250 V a or 30 V c Max. response time: 7 ms 0.5 ms. Electrical service life: 100,000 operations. Other outputs Available on I/O option cards. LI logic inputs LI1LI5 5 programmable logic inputs 24 V c , compatible with level 1 PLC, IEC/EN 61131-2 standard Impedance: 3.5 k W . Maximum voltage: 30 V. Max. sampling time: 2 ms 0.5 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) LI6 1 logic input, switch-configurable as a logic input or as an input for PTC probes. Logic input, characteristics identical to inputs LI1...LI5 Input for a maximum of 6 PTC probes mounted in series: Nominal value < 1.5 k W Trip resistance 3 k W , reset value 1.8 k W Short-circuit protection < 50 W This logic input must never be used to protect an ATEX motor in applications in explosive atmospheres Positive logic (Source) State 0 if y 5 V or logic input not wired, state 1 if u 11 V Negative logic (Sink) State 0 if u 16 V or logic input not wired, state 1 if y 10 V Other inputs Available on I/O option cards. Safety input PWR 1 input for the Power Removal safety function and/or for thermal protection of the ATEX motor in applications in explosive atmospheres. The PWR (Power Removal) safety input, also known as STO (Safe Torque Off) can be used to stop applying power to the motor and/or prevent a motor from restarting unintentionally. The PWR input allows the Altivar 71 to be installed as a part of the safety related system. This function complies with: Standard for safety of machinery EN 954-1 category 1 or category 3. Standard for functional safety IEC/EN 61508 Drives system standard IEC/EN 61800-5-2, SIL 2 capability. Standards for functional safety EN ISO 13849-1: category 3PLd Standard IEC/EN 61508 SIL 1, stopping category 0 or IEC/EN 6UI508 SIL 2, stopping category 1 The PWR (Power Removal) safety input can also be connected to a thermal sensor switch integrated in a motor used in explosive atmospheres to meet ATEX requirements: Power supply: 24 V c (max. 30 V) Impedance: 1.5 k W State 0 if < 2 V, state 1 if > 17 V Response time: <100 ms I/O and Control Specifications Available internal supplies Short-circuit and overload protection: 1 x 10.5 V c 5% supply for the reference potentiometer (1 to 10 k W ), maximum current 10 mA 1 x 24 V c supply (min. 21 V, max. 27 V), maximum current 200 mA For external + 24 V power supply 24 V c (min. 19 V, max. 30 V) Power 30 W

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