Commissioning
821XKlimaBA0399 5-3
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
0.00 0.00 {0.02Hz} 480.00
C011 Maximum field
frequency
50.00 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
:
-
f
dmin
corresponds to the speed at 0 %speed setpoint selection.
-
f
dmax
corresponds to the speed at 100 % speed setpoint selection.
Adjustment Relation between field frequency and synchronous motor speed:
n
rsyn
f
dmax
ô
60
p
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
=50Hz
n
rsyn
50
ô
60
2
1500min
–1
Important
-
With the setting of f
dmin
>f
dmax
the field frequency is limited to f
dmax
.
-
When selecting the setpoint bymeans of JOGvalues, f
dmax
acts as limitation.
-
f
dmax
is andinternal standardization variable:
- Use the LECOM interface only for important modifications, when the controller is
inhibited.
-
Observe the maximum speed of the motor!
-
f
dmin
is only effective under the following conditions:
- With analog setpoint selection.
- With the motor potentiometer function ”DOWN”.
Special features
-
With field frequencies f
d
> 300Hz:
- Avoid chopper frequencies < 8 kHz.
-
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 %
K35.0062
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