Danfoss VLT HVAC Drive FC 102 Operating Instructions Manual page 76

How to Programme
2-10 Brake Function
Option:
[0] Off
6 6
[1] Resistor
brake
[2] AC brake AC Brake only works in compressor torque mode
2-17 Over-voltage Control
Option:
[0] Disabled
[2] Enabled
*
NOTICE
Parameter 2-17 Over-voltage Control has no effect when
1-10 Motor Construction = [1] PM, non-salient SPM.
NOTICE
The ramp time is automatically adjusted to avoid
tripping of the frequency converter.
3-02 Minimum Reference
Range:
Size [ -999999.999 -
related par. 3-03
*
ReferenceFeed-
backUnit]
74
Operating Instructions
Function:
Available selections depend on 1-10 Motor
Construction:
[0] Asynchron:
[0] Off
[1] Resistor brake
[2] AC brake
[1] PM non-salient:
[0] Off
[1] Resistor brake
No brake resistor installed.
Brake resistor incorporated in the system, for
dissipation of surplus brake energy as heat.
Connecting a brake resistor allows a higher DC-
link voltage during braking (generating operation).
The resistor brake function is only active in
frequency converters with an integral dynamic
brake.
in parameter 1-03 Torque Characteristics.
Function:
No OVC required.
Activates OVC.
Function:
Enter the minimum reference. The
minimum reference is the lowest
value obtainable by summing all
references. The minimum
reference value and unit matches
the configuration made in
parameter 1-00 Configuration Mode
and 20-12 Reference/Feedback Unit.
NOTICE
This parameter is used in
open loop only.
Danfoss A/S © Rev. 06/2014 All rights reserved.
3-04 Reference Function
Option: Function:
[0] Sum Sums both external and preset reference
sources.
[1] External/ Use either the preset or the external reference
Preset source.
Shift between external and preset via a
command on a digital input.
3-10 Preset Reference
Array [8]
Range: Function:
0 % [-100 - Enter up to 8 different preset references (0-7) in
*
100 %] this parameter, using array programming. The
preset reference is stated as a percentage of the
value Ref (3-03 Maximum Reference, for
MAX
closed loop see 20-14 Maximum Reference/
Feedb.). When using preset references, select
Preset ref. bit 0/1/2 [16], [17] or [18] for the
corresponding digital inputs in parameter group
5-1* Digital Inputs.
P3-03
P3-02
0 50
Illustration 6.10 Preset Reference
P3-10
100%
MG16B202