Danfoss VLT AutomationDrive FC 301 Programming Manual page 381

VLT AutomationDrive FC 301/302
Programming Guide
5.13.2 13-1* Comparators
Comparators are used for comparing continuous variables (that is output frequency, output current, analog input, and so on) to
fixed preset values.
Par. 13-10
Comparator Operand
Par. 13-12
Comparator Value
Illustration 79: Comparators
There are digital values that are compared to fixed time values. See the explanation in parameter 13-10 Comparator Operand. Com-
parators are evaluated once in each scan interval. Use the result (true or false) directly. All parameters in this parameter group are
array parameters with index 0–9. Select index 0 to program comparator 0, select index 1 to program comparator 1, and so on.
Parameter 13-10 Comparator Operand
Table 674: Parameter 13-10 Comparator Operand
13-10 Comparator Operand
Default value: Size related
Conversion index: -
Options [1] Reference % to [31] Counter B are variables which are compared based on their values. Options [50] FALSE to [186] Drive in
auto mode are digital values (true/false) where the comparison is based on the amount of time during which they are set to true or
false. See parameter 13-11 Comparator Operator.
Option Name
[0] DISABLED
[1] Reference %
[2] Feedback %
[3] Motor speed
[4] Motor current
[5] Motor torque
[6] Motor power
[7] Motor voltage
[8] DC-link voltage
[9] Motor thermal
[10] Drive thermal
[11] Heat sink temp.
[12] Analog input AI53
[13] Analog input AI54
[14] Analog input AIFB10
[15] Analog input AIS24V
Danfoss A/S © 2022.12
Par. 13-11
Comparator Operator
=
TRUE longer than.
. . .
. . .
Parameter type: Option, Array [10]
Data type: Uint8
Description
The comparator is disabled.
The resulting remote reference in %.
[RPM] or [Hz], as set in parameter 0-02 Motor Speed Unit.
[RPM] or [Hz], as set in parameter 0-02 Motor Speed Unit.
The value is in %.
The value is in %.
The value is in %.
The value is in %.
The value is in %.
AIFB10 is internal 10 V supply.
AIS24V is a 24 V switch mode power supply.
Parameter Descriptions
Setup: 2 setups
Change during operation: True
AU275636650261en-000101 / 130R0334 | 381