3-03 Maximum Reference
Range: Function:
Maximum Reference is adjustable in the
range
Minimum
Reference
-4999.
50.00
*
[-4999-4999] Enter value for Maximum Reference.
The sum of all internal and external
references are clamped (limited) to the
maximum reference value, 3-03 Maximum
Reference.
3-41 Ramp1 Ramp-up Time
Range: Function:
Size
related*
[0.05-3600.00 s] Enter ramp-up time from 0 Hz to
rated motor frequency (f
M,N
) set
in 1-23 Motor Frequency.
Choose
a ramp-up time ensuring
that torque limit is not exceeded,
see 4-16 Torque Limit in Motor
Mode.
3-42 Ramp1 Ramp-down Time
Range: Function:
Size
related*
[0.05-3600.00
s]
Enter ramp down time from rated
motor frequency (f
M,N
) in 1-23
Motor Frequency to 0 Hz.
Choose a ramp down time that
does not cause over-voltage in
inverter due to regenerative
operation of motor. Furthermore,
regenerative torque must not
exceed limit set in 4-17 Torque
Limit in Generator Mode.
7.4.2 Quick Menu Parameters - PI Basic
Settings QM2
The following is a brief description of the parameters for
the PI Basic Settings. For a more detailed description, see
VLT
®
Micro Drive Programming Guide, MG02C.
1-00 Configuration Mode
Option: Function:
Use this parameter for selecting the
application control principle to be used when
a Remote Reference is active.
NOTE
Changing this parameter will reset 3-00
Reference Range, 3-02
Minimum Reference
and 3-03 Maximum Reference to their
default values.
NOTE
This
parameter cannot be adjusted
while motor runs.
[0 ] * Speed
Open Loop
For normal speed control (References).
1-00 Configuration Mode
Option: Function:
[3] Process
Closed
Loop
Enables process closed loop control. See
parameter
group
7-3*
Process PI Control for
further information on PI-controller.
3-02 Minimum Reference
Range: Function:
0.00* [-4999-4999] Enter value for minimum reference.
The sum of all internal and external
references are clamped (limited) to the
minimum reference value, 3-02 Minimum
Reference.
3-03 Maximum Reference
Range: Function:
Maximum Reference is adjustable in the
range Minimum Reference -4999.
50.00*
[-4999-4999] Enter value for Maximum Reference.
The sum of all internal and external
references are clamped (limited) to the
maximum reference value, 3-03 Maximum
Reference.
3-10 Preset Reference
Option: Function:
Each parameter set-up contains 8 preset
references which are selectable via 3
digital inputs or bus.
[18]
Bit2
[17]
Bit1
[16]
Bit0
[16]
Bit0
0 0 0 0
0 0 1 1
0 1 0 2
0 1 1 3
1 0 0 4
1 0 1 5
1 1 0 6
1 1 1 7
Table 7.1 Parameter Group 5-1* Digital
Inputs Option [16], [17] and [18]
[0.00]
*
-100.00-100.00% Enter the different preset references
using array programming.
Normally, 100%=value set in 3-03
Maximum Reference
.
However,
there are exceptions if 3-00
Reference Range is set to [0] Min - Max.
Example 1:
3-02 Minimum Reference is set to 20 and
3-03 Maximum Reference is set to 50. In
this case 0%=0 and 100%=50.
Example 2:
Programming
VLT
®
Micro Drive FC 51 Design Guide
66 MG02K202 - VLT
®
is a registered Danfoss trademark
77
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