Control card performanceScan interval 1 msControl characteristicsResolution of output frequency at 0–590 Hz ±0.003 HzRepeat accuracy of precise start/stop (terminals 18, 19) ≤±0.1 msSystem response time (terminals 18, 19, 27, 29, 32, 33) ≤ 2 msSpeed control range (open-loop) 1:100 of synchronous speedSpeed control range (closed-loop) 1:1000 of synchronous speedSpeed accuracy (open-loop) 30–4000 RPM: Error ±8 RPMSpeed accuracy (closed-loop), depending on resolution of feedback device 0–6000 RPM: Error ±0.15 RPMTorque control accuracy (speed feedback) maximum error ±5% of rated torqueAll control characteristics are based on a 4-pole asynchronous motor8.7 Fuses and Circuit BreakersUse recommended fuses and/or circuit breakers on the supply side as protection in case of component breakdown insidethe adjustable frequency drive (first fault).NOTICE!Use of fuses on the supply side is mandatory for IEC 60364 (CE) and NEC 2009 (UL) compliant installations.Recommendations:• gG type fuses.• Moeller type circuit breakers. For other circuit breaker types, ensure that the energy into the adjustable frequencydrive is equal to or lower than the energy provided by Moeller types.Use of recommended fuses and circuit breakers ensures that possible damage to the adjustable frequency drive is limited todamages inside the unit. For further information, see Application Note Fuses and Circuit Breakers..The fuses below are suitable for use on a circuit capable of delivering 100000 Arms (symmetrical), depending on theadjustable frequency drive voltage rating. With the proper fusing, the adjustable frequency drive Short Circuit CurrentRating (SCCR) is 100000 Arms.Specifications Instruction ManualMG33AP22 Danfoss A/S © Rev. 09/2014 All rights reserved. 698 8