References & Limits - Danfoss VLT FCD 311 Design Manual

References & Limits
200 Output frequency range
200
(OUT FREQ. RNG/ROT)
Value:
Only clockwise, 0 - 132 Hz
(132 HZ CLOCKWISE)
Both directions, 0 - 132 Hz
(132 HZ BOTH DIRECT)
Anti-clockwise only, 0 - 132 Hz
(132 HZ COUNTER CLOCK)
Clockwise only, 0 - 1000 Hz
(1000 HZ CLOCK WISE)
Both directions, 0 - 1000 Hz
(1000 HZ BOTH DIRECT)
Anti-clockwise only, 0 - 1000 Hz
(1000 HZ COUNTER CLOCK)
Function:
This parameter guarantees protection against un-
wanted reversing. Furthermore, the maximum output
frequency 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
Clockwise only [0]/[3] or Anti-clockwise only [2]/[5] is
selected, the output frequency will be limited to the
range f -f . If Both directions [1]/[4] is selected,
MIN MAX
the output frequency will be limited to the range ±
f (the minimum frequency is of no significance).
MAX
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.04.A1.02 - VLT is a registered Danfoss trade mark
®
VLT FCD Series
[0]
[1]
[2]
[3]
[4]
201 Output frequency low limit, f
201
[5]
(MIN OUTPUT FREQ)
Value:
0.0 - f
MAX
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
directions has been selected in parameter 200 Out-
put frequency range, the minimum frequency is of no
significance.
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
202
(MAX. OUTPUT FREQ)
Value:
f - 132/1000 Hz (par. 200 Output frequency
MIN
range)
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 con-
verter can never assume a value higher than
1/10 of the switching frequency (parameter 411
Switching frequency).
MIN
0.0 Hz
MAX
132 Hz
65