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VLT® 7000 Booster
203 Reference site
(REFERENCE SITE)
Value:
✭
Hand/Auto linked reference
(LINKED TO HAND/AUTO)
[0]
Remote reference (REMOTE)
[1]
Local reference (LOCAL)
[2]
Function:
This parameter determines the location of the active
reference. If
Hand/Auto linked reference
[0] is selected,
the resulting reference will depend on whether the
frequency converter is in Hand or Auto mode.
The table shows which references are active when
Hand/Auto linked reference
[0],
Remote reference
[1] or
Local reference
[2] has been selected. The Hand mode
or Auto mode can be selected via the control keys or
via a digital input, parameters 300-307
Digital inputs
.
Reference
handling
Hand mode
Auto mode
Hand/Auto [0]
Local ref. active
Remote ref. active
Remote [1]
Remote ref. active
Remote ref. active
Local [2]
Local ref. active
Local ref. active
Description of choice:
If
Hand/Auto linked reference
[0] is chosen, the motor
speed in Hand mode will be decided by the local
reference, while in Auto mode it depends on remote
references and any setpoints selected.
If
Remote reference
[1] is selected, the motor speed will
depend on remote references, regardless of whether
Hand mode or Auto mode has been chosen.
If
Local reference
[2] is selected, the motor speed
will only depend on the local reference set via the
control panel, regardless of whether Hand mode
or Auto mode has been selected.
204 Minimum reference, Ref
MIN
(MIN. REFERENCE)
Value:
-Par. 413
Minimum feedback
- par. 205 Ref
MAX
✭
0.000
Function:
The
Minimum reference
gives the minimum
value that can be assumed by the sum of all
references. The minimum reference is limited by
parameter 413
Minimum feedback
.
Minimum reference is ignored when the local reference
is active (parameter 203
Reference site
). The unit
for the reference is set in par. 415.
Description of choice:
Minimum reference is set if the motor is to run
at a minimum speed, regardless of whether
the resulting reference is 0.
205
Maximum reference, Ref
MAX
(MAX. REFERENCE)
Value:
Par. 204 Ref
MIN
- par. 414
Maximum feedback
✭
50.000 Hz
Function:
The
Maximum reference
gives the maximum value
that can be assumed by the sum of all references.
The maximum reference cannot be set above
parameter 414
Maximum feedback
. The
Maximum
reference
is ignored when the local reference is
active (parameter 203
Reference site
).
The reference unit is set in par. 415.
Description of choice:
Maximum reference
is set if the motor speed is not
to exceed the set value, regardless of whether the
resulting reference is higher than
Maximum reference
.
206 Ramp-up time
(RAMP UP TIME)
Value:
1 - 60 sec.
✭
Depends on the unit
Function:
The ramp-up time is the acceleration time from 0
Hz to the rated motor frequency f
M,N
(parameter
104
Motor frequency, f
M,N
). It is assumed that the
output current does not reach the current limit (set
in parameter 215
Current limit I
LIM
).
Description of choice:
Program the desired ramp-up time.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.70.A1.02 - VLT is a registered Danfoss trademark
62
Содержание VLT 7000 Series
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