Lenze 931W - Manual (Page 18)

Technical data
Rated data
Rated data of the extra-low voltage version (24 or 42 V DC)
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18 GHB 13.0002-EN 3.1
3.3.3 Rated data of the extra-low voltage version (24 or 42 V DC)
Theextra-lowvoltageversionofthedriveshasbeendesignedforoperationon24/42 VDC.
For a simple servo inverter operation, a 24 V or 42 V supply is sufficient. With an additional
24 V auxiliary supply, the control continues to be supplied if an error occurs and the supply
voltage is disconnected. Important data (rotor position, information on faults, etc.) will
thus continue to be recorded and transferred to the control.
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Note!
The residual ripple component of the supply voltage must be under 5%.
The24 Vauxiliarysupplyisalsorequiredifthedigitalinterface(digitalI/O)orthe localCAN
interface is used.
3.3.4 Rated data of the low-voltage version (230 V AC / 320 V DC)
Inverterswith 230 V AC mainssupply have an additional 24 V auxiliarysupply. The control
is also supplied by the mains voltage. With an additional 24 V auxiliary supply, the control
continues to be supplied if an error occurs and the supply voltage is disconnected.
Important data (rotor position, information on faults, etc.) will thus continue to be
recorded and transferred to the control.
The24 Vauxiliarysupplyisalsorequiredifthedigitalinterface(digitalI/O)orthe localCAN
interface is used.