Danfoss VLT 2800 Series, Operating Instructions Manual

Page: 29 / 103

References & Limits
200 Output frequency range
(OUT FREQ. RNG/ROT)
Value:
Only clockwise, 0 - 132 Hz
(132 Hz CLOCKWISE)
[0]
Both directions, 0 - 132 Hz
(132 Hz BOTH DIRECT)
[1]
Anti-clockwise only, 0 - 132 Hz
(132 Hz COUNTER CLOCK)
[2]
Clockwise only, 0 - 1000 Hz
(1000 Hz CLOCK WISE)
[3]
Both directions, 0 - 1000 Hz
(1000 Hz BOTH DIRECT)
[4]
Anti-clockwise only, 0 - 1000 Hz
(1000 Hz COUNTER CLOCK)
[5]
Function:
This parameter guarantees protection against unwan-
ted reversing. Furthermore, the maximum output fre-
quency can be selected that is to apply regardless of
the settings of other parameters. This parameter has
no function if
Process regulation, closed loop has been
selected in parameter 100 Configuration .
Description of choice:
Select the required direction of rotation as well as the
maximum output frequency. Please note that if
Clock-
wise only [0]/[3] or Anti-clockwise only [2]/[5] is selec-
ted, the output frequency will be limited to the range
f
MIN
-f
MAX
. If Both directions [1]/[4] is selected, the out-
put frequency will be limited to the range ± f
MAX
(the
minimum frequency is of no significance).
201 Output frequency low limit, f
MIN
(MIN OUTPUT FREQ)
Value:
0.0 - f
MAX
0.0 Hz
Function:
In this parameter, a minimum motor frequency limit
can be selected that corresponds to the minimum
speed at which the motor is allowed to run. If
Both di-
rections has been selected in parameter 200 Output
frequency range , the minimum frequency is of no sig-
nificance.
Description of choice:
The value chosen can range from 0.0 Hz to the fre-
quency set in parameter 202 Output frequency high
limit, f
MAX
.
202 Output frequency high limit, f
MAX
(max. output freq)
Value:
f
MIN
- 132/1000 Hz (par. 200 Output fre-
quency range ) 132 Hz
Function:
In this parameter, a maximum output frequency limit
can be selected that corresponds to the highest speed
at which the motor is allowed to run.
NB!
The output frequency of the frequency
converter can never assume a value high-
er than 1/10 of the switching frequency
(parameter 411 Switching frequency ).
Description of choice:
A value can be selected from f
MIN
to the value chosen
in parameter 200 Output frequency range .
VLT
®
2800 Series
= factory setting, () = display text, [] = value for use in communication via serial communication port
28 MG.27.A2.02 - VLT
®
is a registered Danfoss trademark