Lenze E94A - Manual (Page 507)

Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
507
5 Function blocks
5.134 L_SdRampGeneratorAny - ramp function generator - S-ramp
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5.134 L_SdRampGeneratorAny - ramp function generator - S-ramp
This FB is a ramp function generator with S-shaped ramps for limiting the increase of analog signals
over time. The S-shape of the ramps results from a trapezoidal acceleration.
• This FB is an advanced version of the L_SdRampGenerator FB:
• Depending on the interconnection of AxisData, setpoints can be defined as scaled signals
(_n) or speeds (_s).
• Separate acceleration and deceleration times can be set via C04332/1 and C04332/2.
• Separate S-ramp times for acceleration and deceleration to achieve jerk-free acceleration can
be set in C04333/1 and C04333/2.
• The ramp function generator has a setting function for directly loading the value into the inter-
nal ramp generator.
• At the dnDeltaOut output, gradient dy/dt of the dnOutput output signal is provided. This signal
can e.g. be used for torque feedforward control after being amplified via the L_TbGainLim FB.
Inputs
Function library: LenzeServoDrive FB available from library V02.09.xx.xx!
Runtime software licence:  Motion Control HighLevel  Motion Control TopLevel
Identifier/data type Information/possible settings
dnInput
DINT
Input signal (scaled signal or speed)
• Scaling:
100 % ≡ 2 30 ≡ 1073741824 (without AxisData)
15000 min -1 ≡ 2 26 ≡ 67108864 (with AxisData)
bLoadStartValue
BOOL
Initialising ramp function generator
FALSE The ramp function generator runs with the Ti times set from the va-
lue loaded via dnStartValue to the value at dnInput.
TRUE At the dnOutput output, dnStartValue is provided. dnDeltaOut re-
mains at 0 % or 0 min -1 , respectively.
dnStartValue
DINT
Starting value for the ramp function generator (scaled signal or speed)
• Acceptance when bLoadStartValue = TRUE
• Scaling:
100 % ≡ 2 30 ≡ 1073741824 (without AxisData)
15000 min -1 ≡ 2 26 ≡ 67108864 (with AxisData)
AxisData Machine parameters
• If this input is not interconnected, the FB uses scaled signals.
• If the FB receives machine parameters via this input, the FB uses speed signals in-
stead.
• For accepting the machine parameters of the drive/motor, connect this input
with the output DI_AxisData of the SB LS_DriveInterface.
• The machine parameters of a master drive can be displayed with the
FB L_SdSetAxisData . In this case, the FB output AxisData must be connected to
this input. ( 510)
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