Lenze 8210 series - Manual (Page 39)

Commissioning
UONu_^MPMQ 5-3
L
5.3 Adapt machine data
5.3.1 Determine speed range (f
dmin,
f
dmax)
Code Name Possible settings IMPORTANT
Lenze Selection Info
C010 Minimum field
frequency
0.0 0.0 {0.1Hz} 480.0
C011 Maximum field
frequency
50.0 7.5 {0.1Hz} 480.0
30.0 {0.1Hz} 480.0
(Software 2x)
(Software 1x)
Function The speed range required for the application can be selected here by determing the
field frequencies f
dmin
and f
dmax
:
D f
dmin
corresponds to the speed at 0 % speed setpoint selection.
D f
dmax
corresponds to the speed at 100 % speed setpoint selection.
Adjustment Relation between field frequency and synchronous motor speed:
е
клуе =
С
Зг~с
⋅ SM
é
n
rsyn
synchronous motor speed [min -1 ]
f
dmax
max. field frequency [Hz]
p number of pole pairs
Example: 4 pole asynchronous
motor:
p = 2, f
dmax
= 50 Hz
е
клуе =
RM ⋅ SM
O
= NRMM ãáå
ÓN
Important D With the setting of f
dmin
> f
dmax
the field frequency is limited to f
dmax
.
D When selecting the setpoint by means of JOG values, f
dmax
acts as limitation.
D f
dmax
is and internal standardization variable:
- Use the LECOM interface only for important modifications, when the controller is
inhibited.
D Observe the maximum speed of the motor!
D f
dmin
is only effective under the following conditions:
- With analog setpoint selection.
- With the motor potentiometer function ”DOWN”.
Special features D With field frequencies f
d
> 300Hz:
- Avoid chopper frequencies < 8 kHz.
D With C500 and C501, you can relate the display value of f
dmin
and f
dmax
to a
process value.
fd
C011
(fdmax)
C010
(fdmin)
0 % 100 % hPRKMMSO
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