Issue: What is the recommended circuit breaker for the ATV31CU22M2 IP54 rated drive? Product Line: Altivar ATV31C Environment: All Cause: Wants to use a circuit breaker on the ATV31CU22M2 drive. Resolution: Recommended breakers for the ATV31C........ M2 units are ATV31C018M2= GV2L08 ATV31C037M2= GV2L10 ATV31C055M2= GV2L14 ATV31C075M2= GV2L14 ATV31CU11M2= GV2L16 ATV31CU15M2= GV2L20 ATV31CU22M2= GV2L22
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Issue: Where is information on ATV31C drive ratings? Product Line: ATV31C Environment: All serial numbers for ATV31C Cause: N/A Resolution: The Installation manual, document 1624729, is attached. ATV31C VFD Rating.pdf
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VSDs are fitted with EMC filters,(see fig 1) and, often, there is a significant current flow (around 6 mA) through the filters to earth, under normal conditions. This can be indicated as a failure during an earth leakage current measurement performed as part of a portable appliance test, although it is a normal characteristic\' of the equipment.
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The drive systems with single enclosures are equipped with handling lugs while multiple enclosures with lifting rails for optimum handling with a hoist. Multiple enclosures should not be lifted with the handling lugs, because they are NOT strong enough for this weight. The handling rails are mounted on each fixing screw for the roof on each enclosure. But typically, these rails are removed after installation. Please find attached installation instructions.
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Overload current rating. This is an inverse time/current rating that is the maximum current the VSD can produce for a given time frame. Typical ratings are 110% to 150% over current for 1 min, depending on the manufacturer. Higher current ratings can be obtained by over sizing the VSD. This rating is very important when sizing the VSD for the currents needed by the motor for break-away torque.
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