EN / ACS800-31/U31 Hardware Manual - Simark Controls

403. Check that the motor voltage rating meets the application requirements:If the drive is equippedwith …diode supplyACS800-01, -U1, -02, -U2,-04, -04M, -U4 -07, -U7IGBT supplyACS800-11, -U11, -31, -U31, -17, -37… and …no resistor braking is in usefrequent or long term brake cycles willbe usedDC link voltage will not be increasedfrom nominal (parameter setting)DC link voltage will be increased fromnominal (parameter setting)… then the motor voltagerating should be …U NU ACeq1U NU ACeq2U N = Rated input voltage of the driveU ACeq1 = U DC /1.35U ACeq2 = U DC /1.41U ACeq is the equivalent AC power source voltage of the drive in VAC.U DC is the maximum DC link voltage of the drive in VDC.For resistor braking: U DC = 1.21 × nominal DC link voltage.For units with IGBT supply: See the parameter value.(Note: Nominal DC link voltage is U N × 1.35 or U N × 1.41 in VDC.)See notes 6 and 7 below the Requirements table, pages 43 and 44.4. Consult the motor manufacturer before using a motor in a drive system where themotor nominal voltage differs from the AC power source voltage.5. Ensure that the motor insulation system withstands the maximum peak voltage inthe motor terminals. See the Requirements table below for the required motorinsulation system and drive filtering.Example 1: When the supply voltage is 440 V and a drive with a diode supply isoperating in motor mode only, the maximum peak voltage in the motor terminalscan be approximated as follows: 440 V · 1.35 · 2 = 1190 V. Check that the motorinsulation system withstands this voltage.Example 2: When the supply voltage is 440 V and the drive is equipped with anIGBT supply, the maximum peak voltage in the motor terminals can beapproximated as follows: 440 V · 1.41 · 2 = 1241 V. Check that the motorinsulation system withstands this voltage.Planning the electrical installation