Danfoss VLT FCD 311 Design Guide

VLT
®
FCD Series
203
203 Reference range
(REFERENCE RANGE)
Value:
✭Min. reference - Max reference (MIN - MAX)
[0]
-Max. reference - Max. reference (-MAX - +MAX)
[1]
Function:
In this parameter you select whether the reference
signal must be positive or whether it can be both
positive and negative. The minimum limit may be a
negative value, unless in parameter 100 Configura-
tion a selection has been made of Speed regulation,
closed loop. You should select Min ref. - Max. ref.
[0], if Process regulation, closed loop [3] has been
selected in parameter 100 Configuration.
Description of choice:
Select the required range.
204
204 Minimum reference, Ref
MIN
(MIN.REFERENCE)
Value:
Par. 100 Config. = Open loop [0].
-100,000.000 - par. 205 Ref
MAX
✭ 0.000 Hz
Par. 100 Config. = Closed loop [1]/[3].
-Par. 414 Minimum feedback - par. 205 Ref
MAX
✭ 0.000 Hz
Function:
Minimum reference is an expression of the minimum
possible value of the total of all references. If in pa-
rameter 100 Configuration, Speed regulation, closed
loop [1] or Process regulation, closed loop [3] is
selected, the minimum reference is limited by param-
eter 414 Minimum feedback. Minimum reference is
ignored if the local reference is active.
The reference unit can be defined from the following
table:
Par. 100 Configuration Unit
Open loop [0] Hz
Speed reg, closed loop [1] rpm
Process reg, closed loop [3] Par. 416
Description of choice:
The minimum reference is preset if the motor has to
run at a minimum speed, regardless of whether the
resulting reference is 0.
205
205 Maximum reference, Ref
MAX
(MAX.REFERENCE)
Value:
Par. 100 Config. = Open loop [0].
Par. 204 Ref
MIN
- 1000.000 Hz
✭ 50.000 Hz
Par. 100 Config. = Closed loop [1]/[3].
Par. 204 Ref
MIN
- Par. 415 Max. feedback
✭ 50.000 Hz
Function:
The maximum reference gives the highest value that
can be assumed by the sum of all references. If
Closed loop [1]/[3] is selected in parameter 100 Con-
figuration the maximum reference cannot exceed the
value in parameter 415 Maximum feedback.
Maximum reference is ignored if the local reference
is active.
The reference unit can be defined from the following
table:
Par. 100 Configuration Unit
Open loop [0] Hz
Speed reg, closed loop [1] rpm
Process reg, closed loop [3] Par. 416
Description of choice:
Maximum reference is set, if the speed of the motor
is to be max. the set value, regardless of the
whether the resulting reference is greater than the
maximum reference.
206
206 Ramp type
(RAMP TYPE)
Value:
✭Linear (LINEAR)
[0]
Sin shaped (SIN SHAPED)
[1]
Sin
2
shaped (S-SHAPED 2)
[2]
Function:
You can choose between a linear, an S-shaped and
an S
2
ramp process.
Description of choice:
Select the required ramp type depending on the re-
quired acceleration/deceleration process.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.04.A1.02 - VLT is a registered Danfoss trade mark
67
Programming

Danfoss VLT FCD 311 Specifications

General

Brand	Danfoss
Model	VLT FCD 311
Category	DC Drives
Language	English