VLT
®
4000 VT
■
References and limits 200-228
■
References and Limits 200-208
In this parameter group, the frequency and
reference range of the AFD are established. This
parameter group also includes:
-
Setting of ramp times
-
Choice of four preset references
-
Possibility of programming four bypass frequencies.
-
Setting of maximum current to motor.
-
Setting of warning limits for current, frequency,
reference and feedback.
200 Output frequency range
(FREQUENCY RANGE)
Value:
✭
0 - 120 Hz (0 - 120 HZ)
[0]
0 - 1000 Hz (0 - 1000 HZ)
[1]
Function:
This is where to select the maximum output
frequency range to be set in parameter 202
Output frequency high limit, f
MAX
.
Description of choice:
Select the required output frequency range.
201 Output frequency low limit, f
MIN
(MIN. FREQUENCY)
Value:
0.0 - f
MAX
✭
0.0 HZ
Function:
This is where to select the minimum output frequency.
Description of choice:
A value from 0.0 Hz to the
Output frequency high limit,
f
MAX
frequency set in parameter 202 can be selected.
202 Output frequency high limit, f
MAX
(MAX. FREQUENCY)
Value:
f
MIN
- 120/1000 Hz
(par. 200
Output frequency range
)
✭
60 Hz
Function:
In this parameter, a maximum output frequency
can be selected that corresponds to the highest
speed at which the motor can be.
NOTE
The output frequency of the VLT AFD can never
assume a value higher than 1/10 of the switching
frequency (parameter 407
Switching frequency
).
Description of choice:
A value from f
MIN
to the choice made in parameter
200 Output frequency range can be selected.
MG.40.A7.22 - VLT is a registered Danfoss trademark
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