VLT
®
5000 Series
NB!:
The output frequency of the VLT frequency
converter can never assume a value higher
than 1/10 of the switching frequency.
Description of choice:
A value from f
MIN
to the choice made in parameter
200 can be selected.
NB!:
If the maximum motor frequency is set
at more than 500 Hz, parameter 446 must be
set at 60
AVM [0] switching pattern.
203
203 Reference/feedbackarea
(REF/FEEDB. RANGE)
Value:
✭Min - Max (MIN - MAX)
[0]
- Max - + Max (-MAX-+MAX)
[1]
Function:
This parameter decides whether the reference signal
and the feedback signal are to be positive or can be
both positive and negative.
The minimum limit may be a negative value, unless
Speed control, closed loop has been selected
(parameter 100).
Choose Min - Max [0] if Process control, closed loop
has been selected in parameter 100.
Description of choice:
Choose the desired range.
204
204 Minimum reference
(MIN. REFERENCE)
Value:
-100,000.000 - Ref
MAX
✭ 0.000
Depends on parameter 100.
Function:
The Minimum reference gives the minimum value
that can be assumed by the sum of all references.
Minimum reference is only active if Min - Max [0] has
been set in parameter 203; however, it is always ac-
tive in Process control, closed loop (parameter 100).
Description of choice:
Is only active when parameter 203 has been set to
Min - Max [0].
Set the desired value.
The unit follows the choice of configuration in param-
eter 100.
Speed control, open loop: Hz
Speed control, closed loop: rpm
Torque control, open loop: Nm
Torque control, speed feedback: Nm
Process control, closed loop: Process units
(par. 416)
Special motor characteristics, activated in parameter
101, use the unit selected in parameter 100.
205
205 Maximum reference
(MAX. REFERENCE)
Value:
Ref
MIN
- 100,000.000
✭ 50.000
Function:
The Maximum reference gives the highest value that
can be assumed by the sum of all references. If
closed loop has been selected in parameter 100, the
maximum reference cannot be set higher than the
maximum feedback (parameter 415).
Description of choice:
Set the desired value.
The unit follows the choice of configuration in param-
eter 100.
Speed control, open loop: Hz
Speed control, closed loop: rpm
Torque control, open loop: Nm
Torque control, speed feed-
back:
Nm
Process control, closed loop: Process units
(par. 416)
Special motor characteristics, activated in parameter
101, use the unit selected in parameter 100.
206
206 Ramp type (RAMP TYPE)
Value:
✭Linear (LINEAR)
[0]
Sinusoidal (S1)
[1]
Sin
2
(S2)
[2]
Sin
3
(S3)
[3]
Function:
There is a choice of 4 different ramp types.
Description of choice:
Select the desired ramp type, depending on require-
ments concerning acceleration/deceleration.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.51.A1.02 - VLT is a registered Danfoss trade mark
121
Programming
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