Lenze EVF9383 - Manual (Page 126)

Parameter setting with the XT EMZ9371BC keypad
Commissioning example in V/f characteristic control mode 6.3
6.3.1
l
6.3−2 EDSVF9383V EN 7.1−04/2012
Note Switch−on sequence
l Rated motor speed (C0087)
– Lenze setting: device−dependent
l Rated motor current (C0088)
– Lenze setting: device−dependent Enter value for the selected motor
connection method (star/delta)!
l Rated motor frequency (C0089)
– Lenze setting: device−dependent
l Rated motor voltage (C0090)
– Lenze setting: device−dependent Enter value for the selected motor
connection method (star/delta)!
l Motor cos j (C0091)
– Lenze setting: device−dependent
11. If required, set a base frequency which differs from
the rated motor frequency (C0015)
Lenze setting: C0015 = C0089
100%
0
0 C0015
U min
U out
f
Changes in C0086 and C0089 overwrite
the setting in C0015
(see chapter "Commissioning"
®"Operating mode" ® "V/f
characteristic control")
12. If required, adapt the slip compensation (C0021)
Lenze setting: Rated slip in [%] with regard to N
max
in C0011. The value is calculated from the data of
the nameplate and is thus suitable for the majority
of applications.
Due to changes in C0086, C0087, C0089
the rated slip is recalculated and
automatically entered into C0021
(see chapter "Commissioning"
®"Slip
compensation")
13. For protecting the motor, set the current limit
values "I
max
current" (C0022, C0023)
Guide value £ 2−fold rated motor current
Power range 0.37 ... 90 kW:
For dissipating the regenerative energy,
use a brake chopper or feedback
module, if necessary
Power range 110 ... 400 kW:
For dissipating regenerative energy, use
a brake resistor, if necessary
(see chapter "Commissioning"
®
"Motor adjustment" ® "Current limit
values")
A In motor mode and generator mode (C0022)
B Additional limitation in generator mode (C0023)
Condition: C0023 < C0022
14. Set the operating mode "V/f" (C0006)
Lenze setting: 5 (V/f characteristic control) (see chapter "Commissioning"
®"Operating mode" ® "V/f
characteristic control")
15. Set the V/f characteristic (C0014)
Lenze setting: 0 (linear characteristic)
A Linear characteristic (C0014 = 0)
0 1
0
C0089
C0090
100 %
N
n
n
U min
U out
B Square−law characteristic (C0014 = 1)
0 1
0
C0089
C0090
100 %
N
n
n
U min
U
out
For applications with e. g. pumps or
fans
16. If required, set U
min
boost (C0016)
Lenze setting: 0 %
C0016 = 1 % corresponds to a boost of
1 % of the rated voltage "Mot voltage"
(C0090)
(see chapter "Commissioning"
®"Operating mode" ® "V/f
characteristic control")
17. Set the switching frequency "fchop" (C0018)
Lenze setting:
Power range 0.37 ... 90 kW: 6 (8/2 kHz sin)
Power range 110 ... 400 kW: 6 (4/2 kHz sin) See chapter "Commissioning" ®
"Switching frequency of the inverter"