Lenze E82xVxxxKxxxxx - Manual (Page 289)

Function library
Acceleration, deceleration, braking, stopping
Quick stop
10
l
289 EDS82EV903 EN 3.0
10.6.2 Quick stop
Description
Quick stop decelerates the drive to standstill according to the deceleration time set under
C0105, as soon as the signal DCTRL1−QSP is activated.
If the output frequency falls below the threshold C0019, the automatic DC injection brake
(DCB) is activated. After the holding time (C0106) the controller sets pulse inhibit (display:
c).
Quick stop acts on
ƒ the main setpoint (NSET1−N1, NSET1−N2).
ƒ the additional setpoint (PCTRL1−NADD).
ƒ the process controller setpoint 1 (PCTRL1−SET1) (only application I/O).
)
Note!
The S−shaped ramp (C0182) has also an effect on quick stop! Therefore the real
deceleration time is longer than set under C0105.
Reduce the time setting under C0105 to reach the desired deceleration time
for quick stop.
Codes for parameter setting
Code Possible settings IMPORTANT
No. Name Lenze Selection
C0105 Deceleration
time − quick
stop (QSP)
5.00 0.00 {0.02 s} 1300.00 l Quick stop (QSP) brakes the
drive to standstill with the
ramp set in C0105.
l If the output frequency falls
below the theshold set in
C0019, the DC injection brake
(DCB) will be activated.
l The S−ramp (C0182) also
affects quick stop!
– Select shorter times in C0105
accordingly to achieve the
desired deceleration times
for quick stop.
– In C0311 the S−ramp for
quick stop can be
deactivated (from software
version 3.1).
^ 289
C0019 Operating
threshold −
automatic DC
injection brake
(auto DCB)
0.10 0.00
= inactive {0.02
Hz}
650.00 Hold time ð C0106
Deactivate automatic DC injection
brake (auto DBC):
l at active lower frequency
limitation (C0239)
l at operating mode C0014 = 5
In the case of a max. output
frequency > 50 Hz (C0011), the
switching threshold of the auto
DCB in C0019 must be increased.
^ 292
C0106 Hold time −
automatic DC
injection brake
(auto DCB)
0.50 0.00
= auto DCB
inactive {0.01 s} 999.00
= ¥
Hold time if DC injection braking
is triggered because the value falls
below C0019 ^ 292