D.3 UL StandardsYASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual 425Standards ComplianceD■ Drive Short-Circuit RatingThis drive has undergone the UL short-circuit test, which certifies that during a short circuitin the power supply the current flow will not rise above 30,000 amps maximum at 240 V for200 V class drives and 480 V for 400 V class drives.• The MCCB and breaker protection and fuse ratings shall be equal to or greater than theshort-circuit tolerance of the power supply being used.• Suitable for use on a circuit capable of delivering not more than 30,000 RMS symmetricalamperes for 240 V in 200 V class drives (up to 480 V for 400 V class drives) motoroverload protection.◆ Drive Motor Overload ProtectionSet parameter E2-01 (motor rated current) to the appropriate value to enable motor overloadprotection. The internal motor overload protection is UL listed and in accordance with theNEC and CEC.■ E2-01 Motor Rated CurrentSetting Range: Model DependentFactory Default: Model DependentParameter E2-01 (motor rated current) protects the motor if parameter L1-01 is not set to 0(default is 1, standard induction motor protection enabled).If Auto-Tuning has been performed successfully, the motor data that was entered in T1-04 isautomatically written into parameter E2-01. If Auto-Tuning has not been performed,manually enter the correct motor rated current in parameter E2-01.■ L1-01 Motor Overload Protection SelectionThe drive has an electronic overload protection function (OL1) based on time, output currentand output frequency, which protects the motor from overheating. The electronic thermaloverload function is UL-recognized, so it does not require an external thermal overload relayfor single motor operation.This parameter selects the motor overload curve used according to the type of motor applied.Digital inputs S1, S2, S3, S4, S5, S6, S7, SC, H1, HC Use the internal power supply of the drive.Use class 2 for external power supply.Main frequency reference(multi-function analoginputs)RP, +V, A1, A2, AC Use the internal power supply of the drive.Use class 2 for external power supply.Input / Output Terminal Signal Power Supply Specifications
