Lenze 8200 Frequency inverters - Manual (Page 288)

Application examples
8200SHB0199 15-9
Application FIG 15-4:
The air conditioning system of a department store is to be controlled according to
the number of persons present. The fans must circulate an amount of air that
depends on the number of people (e.g. data provided by a person counter).
Functions used
- Belt monitoring
- Mains failure detection
- Controlled deceleration and stopping of the drive after mains failure
- Flying-restart circuit on coasting motor
- Suppression of mechanical resonances
- Smooth start/stop with S ramps
Code settings for unit 1:
Code Name Possible settings Code Name
Lenze Choice Info
C001
C2001
Operating mode -0- -0- Setpoint selection via term. 8 (jumper setting see
chapter 4.2.8.2)
Control via terminals parameter setting with 8201BB
C005
C2005
Configuration -0- -0- Operation with open-loop control via terminal 8
C008
C2008
Function relay K1 -1- -14- Apparent motor current (C054) < Current threshold
C156 and acceleration finished (Belt monitoring)
C014
C2014
Control mode -0- -3- Square characteristic V f
d
2 with constant V
min
boost
C142
C2142
Start condition -1- -3- Automatic start, if term. 28 HIGH, flying-restart circuit
active
C156 Current threshold 0 50 %
C182 t
integration
RFG S-shape 0.00 0.50 s Smooth start / stop
C625 Skip frequency 1 480.00 30.00 HzRemoval of mechanical resonances
C628 Skipping bandwidth, f
skip
0.00 10.00 %
C988 DC-bus voltage threshold for
DC-bus voltage control
0 81 % Controlled deceleration after mains failure by
changing the parameter set
Motor deceleration after mains failure
Parameter set changeover via DC-bus voltage control
PAR 1 PAR 2 (Code = C2XXX)
C007 = 2
C105 = 0.5 s C2007 = 0
C2105 = 5.00 s
Note!
Terminal E3 must always be at L-level (PAR2: normal operation; PAR1: QSP)
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