Danfoss VLT HVAC Operating Instructions Manual page 59

®
VLT HVAC Drive Operating Instructions
4-13
Value:
0 - 60,000 RPM
Function:
Enter the maximum limit for motor speed. The
Motor Speed High Limit can be set to corre-
spond to the manufacturer's maximum rated
motor speed. The Motor Speed High Limit
must exceed the setting in par. 4-11
Speed Low Limit [RPM]
will be displayed depending on other param-
eters set in the Main Menu and depending on
default settings dependant on global geo-
graphical location.
6.1.3. Function Setups
The Function set-up provides quick and easy access to all parameters required for the majority of
water and wastewater applications including variable torque, constant torque, pumps, dossoing
pumps, well pumps, booster pumps, mixer pumps, aeration blowers and other pump and fan
applications. Amongst other features it also includes parameters for selecting which variables to
display on the LCP, digital preset speeds, scaling of analog references, closed loop single zone
and multi-zone applications and specific functions related to Fans, Pumps and Compressors.
How to access Function Set-up - exam-
ple
Motor Speed High Limit
[RPM]
Size related
Motor
. Only par. 4-11 or 4-12
NB!
The output frequency value of
the frequency converter must
not exceed a value higher than
1/10 of the switching frequency.
MG.11.A4.02 - 09.10.06. VLT ® is a registered Danfoss trademark
6. How to programme the frequency converter
4-14 Motor Speed High Limit [Hz]
Value:
0 - 1000 Hz
Function:
Enter the maximum limit for motor speed. The
Motor Speed High Limit can be set to corre-
spond to the manufacturer's recommended
maximum frequency of the motor shaft. The
Motor Speed High Limit must exceed the set-
Motor Speed Low Limit [Hz]
ting in par. 4-12
Only par. 4-11 or 4-12 will be displayed de-
pending on other parameters set in the Main
Menu and depending on default settings de-
pendant on global geographical location.
NB!
Max. output frequency cannot
exceed 10% of the inverter
switching
14-01).
3-11 Jog Speed [Hz]
Value:
0 - 1000 Hz
Function:
The jog speed is a fixed output speed at which
the frequency converter is running when the
jog function is activated.
See also par. 3-80.
Size related
.
frequency (par.
Size related
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