Lenze 8200 Frequency inverters - Manual (Page 151)

Configuration
8200SHB0199 7-14
Adjustment Code PAR1 setting
(active in the event of
mains failure) PAR2 setting
(active in normal
operation) Note
Threshold C988 Threshold
C0988 = 100 % corresponds exactly to the mains voltage 3
AC 400 V.
Adapt C0988 to the mains-voltage dependent undervoltage: Most uniform deceleration
can be achieved by setting
the upper limit of the
bandwidth.
3 AC 400 V - 10 %
Õ C0988 = 75 %... 85 % 3 AC 460 V - 10 %
Õ C0988 = 75 %... 98 %
bandwidth.
Terminal configuration C007 Select terminal configuration
with terminal for QSP
function. Select terminal configuration
for normal operation. With factory setting, the
QSP input is low active.
With QSP
In normal operation - Invert QSP input via C114. - The QSP input selected in
PAR1 must only be used if
not inverted.
Without QSP
In normal operation - Do not assign the QSP
input. - Invert the QSP input
selected in PAR1 via C114.
Quick stop without external brake
resistor C105 Ensure with the setting that
the motor decelerates to
standstill in a controlled way
after mains disconnection:
1.Set the same value as in
PAR2.
2.Switch off the mains
voltage.
- PAR1 will be activated.
- Observe whether the
controller indicates
“Overvoltage OU” during
controlled deceleration.
3.Reduce the value and
switch the mains until the
controller indicates OU
during deceleration.
4.Increase this value by
approx. 20 % as final
setting.
Set the deceleration time for
QSP required for the
application.
Quick stop with external brake
resistor C105 1.Set the same value as in
PAR2.
2.Reduce the value until the
required deceleration time
after mains switch-off is
available.
Set the deceleration time for
QSP required for the
application. - Do not exceed the
generative current limit
during deceleration.
- Select the external
brake resistor large
enough.
Important - Parameter set changeover via terminal, bus or PC is not possible, if C988 > 0!
- C988 is not the same in all parameter sets.
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