Lenze 8400 - Manual (Page 1258)

18 Function library
18.1 Function blocks | L_DFRFG_1
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Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05
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
Tip!
Set the synchronisation window in
C01079/1 higher than the amplitude of beat available
on the input signal:
[18-29] Example: Beat on the input signal
18.1.72.2 Quick stop
The quick stop function removes the drive from the interconnection and leads it to standstill.
• Quick stop is activated by setting bRfg0 to TRUE.
•
C01076/2 is used to set the delay time in [s] which refers as the acceleration/deceleration time
to the reference speed ( C00011 ).
• The angle setpoint created internally on the basis of the input signal nIn_v is saved.
• After bRfg0 is reset to FALSE, the angle setpoint is approached via the ramp function generator
again.
[18-30] Example: Quick stop function (QSP)
nIn_v
t
n
 C01077/1 : Maximum speed
 C01076/2 : Deceleration time for quick stop
 C01076/1 : Acceleration/deceleration time
nOut_v
nIn_v
t
TRUE
FALSE
bRfg0
t
Œ

Ž
Ž