Siemens SINUMERIK 840D sl Function Manual

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Compensations (K3)5.9 Electronic weight compensation (vertical axis)Extended Functions434 Function Manual, 01/2008, 6FC5397-1BP10-3BA05.9 Electronic weight compensation (vertical axis)RequirementsThis function is available only for use in conjunction with SIMODRIVE 611 digital drives.NoteThe electronic weight compensation function is not currently available for:• SINUMERIK 840D sl in conjunction with drive system SINAMICS• SINUMERIK 840Di in conjunction with drive system SIMODRIVE 611 universalThe parameters required by the electronic weight compensation function cannot betransferred to the drive via PROFIBUS-DP.5.9.1 Electronic counterweight functionAxis without electronic weight compensationIn the case of weight-bearing axes without weight compensation, the vertical axes drop whenthe brake is released and the system responds as follows:3RVLWLRQEDVHG=G]G]7RUTXHW=W%UDNHKROGV=%UDNHUHOHDVHVVHUYRHQDEOH3XOVHHQDEOH$[LV=LVORZHUHG$IWHUDJLYHQSHULRGWKHFRQWUROKROGVWKHD[LVLQSRVLWLRQ:HLJKW)HHGGULYH%UDNH==Figure 5-39 Lowering of a vertical axis without "electronic weight compensation"The amount the axis (Z) is lowered increases in proportion to the speed controller reset timeparameterized with the SIMODRIVE 611, see machine data