NB!
Any changes in par. 4-13
Motor Speed High Limit [RPM]
will reset the value in par. 4-53
Warning Speed High
to the same value as set
in par. 4-13
Motor Speed High Limit [RPM]
.
4-14 Motor Speed High Limit [Hz]
Range: Function:
Application
dependent*
[Application dependant] Enter the maximum limit for motor speed. The Motor Speed High Limit can be set to correspond to
the manufacturer’s recommended maximum of the motor shaft. The Motor Speed High Limit must
exceed the in par. 4-12
Motor Speed Low Limit [Hz]
. Only par. 4-11
Motor Speed Low Limit
[RPM]
or par. 4-12
Motor Speed Low Limit [Hz]
will be displayed depending on other parameters in
the Main Menu and depending on default settings dependant on global location.
NB!
Max. output frequency cannot exceed 10% of the inverter switching frequency (par. 14-01
Switching Frequency
).
4-16 Torque Limit Motor Mode
Range: Function:
Application
dependent*
[Application dependant] Enter the maximum torque limit for motor operation. The torque limit is active in the speed range
up to and including the rated motor speed set in par. 1-25
Motor Nominal Speed
. To protect the
motor from reaching the stalling torque, the default setting is 1.1 x the rated motor torque (calcu-
lated value). See also par. 14-25
Trip Delay at Torque Limit
for further details.
If a setting in par. 1-00
Configuration Mode
to par. 1-28
Motor Rotation Check
is changed,
par. 4-16
Torque Limit Motor Mode
is not automatically reset to the default setting.
4-17 Torque Limit Generator Mode
Range: Function:
100.0 %* [Application dependant] Enter the maximum torque limit for generator mode operation. The torque limit is active in the speed
range up to and including the rated motor speed (par. 1-25
Motor Nominal Speed
). Refer to
par. 14-25
Trip Delay at Torque Limit
for further details.
If a setting in par. 1-00
Configuration Mode
to par. 1-28
Motor Rotation Check
is changed,
par. 4-17
Torque Limit Generator Mode
is not automatically reset to the default settings.
4-18 Current Limit
Range: Function:
Application
dependent*
[Application dependant] Enter the current limit for motor and generator operation. To protect the motor from reaching the
stalling torque, the default setting is 1.1 x the rated motor current (set in par. 1-24
Motor Cur-
rent
). If a setting in par. 1-00
Configuration Mode
to par. 1-28
Motor Rotation Check
is changed,
par. 4-16
Torque Limit Motor Mode
to par. 4-18
Current Limit
are not automatically reset to the
default settings.
4-19 Max Output Frequency
Range: Function:
Application
dependent*
[1.0 - 1000.0 Hz] Enter the maximum output frequency value. Par. 4-19
Max Output Frequency
specifies the absolute
limit on the frequency converter output frequency for improved safety in applications where acci-
dental over-speeding must be avoided. This absolute limit applies to all configurations and is
independent of the setting in par. 1-00
Configuration Mode
. This parameter cannot be adjusted
while the motor is running.
VLT
®
HVAC Drive Programming Guide 3 Parameter Description
MG.11.C9.02 - VLT
®
is a registered Danfoss trademark
73
3
To Next Page
Loading...
Need help?
General
