Lenze EVF9333−xV - Manual (Page 295)

Configuration
Function blocks
Internal motor control with V/f characteristic control (MCTRL1)
8
8.2
8.2.6
l
8.2−33 EDSVF9333V EN 6.2−04/2012
IMPORTANT Possible settings Code
Selection Lenze Name No.
C0912 OV delay time à − {1 ms} − Delay time of the pulse enable
after an OU message
à Depending on C0082, C0086,
C0087, C0088, C0089, C0090,
C0091, C0092
A change of one of the codes
resets C0912 to the time of the
selected motor
l The time is derived from the
double rotor time constant
^
8.2−25
^
8.2−48
^ 9.4−3
C0913
s
OV handling 0 Value of the motor current during
the flying restart process or after
an OU message
l When C0913 = 1, the motor is
driven with reduced current to
the setpoint speed during the
flying restart process of after
an OU message.
l The setting is only effective for
the drives EVF9326 ... EVF9333
^
8.2−25
^
8.2−48
0 inactive Non−reduced motor current
1 active Reduced motor current
ƒ The signal at input MCTRL−N−SET is the speed setpoint in [%] and
always refers to the maximum speed (C0011).
ƒ In the most basic configurations, MCTRL−N−SET is connected with the
function block NSET (speed setpoint conditioning).
– It is also possible to connect MCTRL−N−SET with any other analog
output signal of an FB.
ƒ The speed setpoint at MCTRL−N−SET is always limited to ±100 % of the
maximum speed n
max
(C0011).
ƒ The speed setpoint is converted into a frequency setpoint by the motor
control and is limited to a maximum output frequency depending on
the chopper frequency f
chop
.
Chopper frequency f
chop
Maximum output frequency
16 kHz 600Hz
8 kHz 300Hz
2/4 kHz 150Hz
The motor voltage characteristic is set via the input of the motor ratings.
Via the input MCTRL−BOOST the motor voltage can be raised. The input is
connected to C0016 (freely configurable) in all basic configurations.
ƒ To adapt the motor voltage boost to your application, you can also
connect the input with other function blocks.
Speed setpoint selection
Speed setpoint limitation
Setting of the V/f
characteristic