Danfoss VLT AutomationDrive FC 301 Programming Manual page 94

Parameter Descriptions
3-17 Reference Resource 3
Option:
[5] MCB 103
[6] Virtual Master
[7] Frequency
3 3
input 29
[8] Frequency
input 33
[11] Local bus
reference
[12] Preset
Reference
[13] 24V encoder
27/29
[14] MCB 102
Absolute
[15] MCO Encoder
1 X56
[16] MCO Encoder
2 X55
[20] Digital
pot.meter
[21] Analog input
X30/11
[22] Analog input
X30/12
[29] Analog Input
X48/2
[37] Analog Input
X49/1
[38] Analog Input
X49/3
[39] Analog Input
X49/5
3-18 Relative Scaling Reference Resource
Option:
92
®
VLT AutomationDrive FC 301/302
Function:
Reference from terminals 68 and 69.
Function:
NOTICE
This parameter cannot be
adjusted while the motor is
running.
The options 3, 4, 5, 6, 12, 13,
and 14 are only available for
software version 48.XX.
Select a variable value to be added
to the fixed value (defined in
parameter 3-14 Preset Relative
Reference). The sum of the fixed
and variable values (labeled Y in
Illustration 3.24) is multiplied by the
actual reference (labeled X in
Illustration 3.24). This product is
then added to the actual reference
Danfoss A/S © 10/2019 All rights reserved.
3-18 Relative Scaling Reference Resource
Option: Function:
(X+X*Y/100) to give the resulting
actual reference.
Y
X
Illustration 3.24 Resulting Actual
Reference
[0] No function
*
[1] Analog Input
53
[2] Analog Input
54
[3] 24V encoder
32/33
[4] MCB 102
[5] MCB 103
[6] Virtual Master
[7] Frequency
input 29
[8] Frequency
input 33
[11] Local bus Reference from terminals 68 and 69.
reference
[12] Preset
Reference
[13] 24V encoder
27/29
[14] MCB 102
Absolute
[15] MCO Encoder
1 X56
[16] MCO Encoder
2 X55
[20] Digital
pot.meter
[21] Analog input
X30/11
[22] Analog input
X30/12
[29] Analog Input
X48/2
[37] Analog Input
X49/1
[38] Analog Input
X49/3
[39] Analog Input
X49/5
Resulting
Relative Z
actual
Z=X+X*Y/100
reference
M0013101