Lenze EMF2111IB - Manual (Page 65)

Data transfer
DRIVECOM profile parameters
5
2111 INTERBUS fieldbus module
5.6
5.6.7
L
5.6-43 EDSIBS-1.0-06/2003
5.6.7.7 Ramps
The DRIVECOM profile 21 provides two ramps for the speed setpoint:
l The absolute ramp is determined by the following ramp gradient:
dк~ЗбЙен =
aÉäí~|лйЙЙЗ
aÉäí~|нбгЙ
The absolute ramps in the DRIVECOM profile 21 are ” acceleration” ,
” deceleration” and ” quick stop” .
l The relative ramp is determined by the following ramp gradient:
dк~ЗбЙен =
péÉÉÇ кЙСЙкЙеЕЙ о~дмЙ
aÉäí~|нбгЙ
This definition corresponds to the Lenze ramp functions L-C0012 and L-C0013.
The relative ramps in the DRIVECOM profile 21 are ” acceleration time” ,
” deceleration time” and ” quick-stop time” .
The ” ramp-min function” determines and activates the slower ramp. The absolute
ramps are deactivated in Lenze setting.
This parameter contains data of the absolute speed ramp for acceleration.
Ramp gradient:
Gradient =
Delta_speed
Delta_time
The parameter is mapped to the Lenze acceleration ramp (L-C0012) via the
” ramp-min-function” .
” Delta_time“ = 0: Ramp is switched off.
Parameter name (Index) Subindex Data structure Data type Value range
Speed acceleration (6048
hex
) 1 RS (21
hex
) U32 0 to 4294967295
0: Delta_speed [rev/min]
2 RS (21
hex
) U16 0 to 65535
0 (ramp is switched off):
Delta_time [sec]
The ” ramp-min function” determines and activates the slower ramp. The absolute
ramps are deactivated in Lenze setting.
Speed ramps fro acceleration
(6048
hex
)
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