Lenze DDS Global Drive PLC Developer Studio - Manual (Page 20)

Function block library LenzeElectricalShaft.lib
Special functions
2.1.2 Digital frequency processing (L_DFSET)
2−10
L
LenzeElectricalShaft.lib EN 1.2
Parameter codes of the instances
VariableName L_DFSET1 SettingRange Lenze
wGearDenom C0033 1 ... 32767 1
dnPosOffset C0252 −245760000 ... 245760000 inc 0
nSpeedDependPos
Offset C0253 −32767 ... 32767 inc 0
dwFollowingErrWin C0255 10 ... 180000000 inc. 32768
nAngleOffsetMult C0529 −20000 ... 20000 1
bWithoutGearFactor C0530 0, 1 0
wAct0PulseDiv C0531 0 ... 16384 0
wGainDenom C0533 1 ... 32767 1
by0PulseFunc C0534 0, 1, 2, 10, 11, 12, 13 0
wSet0PulseDiv C0535 0 ... 16384 0
Range of functions
·
Setpoint conditioning with stretch and gearbox factor
·
Processing of correction values
·
Synchronizing on zero track or touch probe (for resolver feedback: touch probe only)
·
Connection of the function block
2.1.2.1 Setpoint conditioning with stretch and gearbox factor
Stretch factor
The stretch factor defines the ratio for the drive running to its setpoint.
·
The stretch factor evaluates the setpoints at nSet_v .
The result appears at nSetOut_v (16384
º 15000 rpm).
·
The stretch factor results from numerator and denominator.
– Numerator: Variable value of nGainNominator.
– Denominator: defined under wGainDenom.
·
Relationship:
nSetOut_v
+ nSet_v @ nGainNominator
wGainDenom
Gearbox factor
The gearing factor defines the gearbox ratio of the drive. Enter the ratio of the drive.
·
The gearing factor evaluates the setpoints at nSet_v multiplied by the stretch factor.
The result appears at nSetSpeedOut_a (16384
º n
max
(C0011)).
·
The gearing factor is formed from the numerator and denominator.
– Numerator: Variable value of nGearNominator.
– Denominator: defined under wGearDenom.
·
Relationship:
nSetSpeedOut_a
+ Reckfaktor @ nGearNominator
wGearDenom
nSetSpeedOut_a
+ nSet_v @ nGainNominator
wGainDenom
@ nGearNominator
wGearDenom