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
= 50 Hz
n
rsyn
50
ô
60
2
1500 min
–1
Important
-
With the setting of f
dmin
> f
dmax
the field frequency is limited to f
dmax
.
-
When selecting the setpoint by means of JOG values, f
dmax
acts as limitation.
-
f
dmax
is and internal 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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Summary of Contents for 8210 HVAC Series
Page 52: ...Commissioning 5 14 821XKlimaBA0399 Show Hide Bookmarks...
Page 62: ...Commissioning 5 24 821XKlimaBA0399 Show Hide Bookmarks...
Page 64: ...During operation 6 2 821XKlimaBA0399 Show Hide Bookmarks...
Page 78: ...Configuration 7 14 821XKlimaBA0399 Show Hide Bookmarks...
Page 84: ...Troubleshooting and fault elimination 8 6 821XKlimaBA0399 Show Hide Bookmarks...
Page 88: ...Accessories 9 4 821XKlimaBA0399 Show Hide Bookmarks...
Page 92: ...Index 10 4 821XKlimaBA0399 Show Hide Bookmarks...
Page 93: ...Index 821XKlimaBA0399 10 5 Show Hide Bookmarks...
Page 94: ...Index 10 6 821XKlimaBA0399 Show Hide Bookmarks...
