Danfoss VLT HVAC Basic Drive FC 101 Programming Manual page 71

Parameters
13-02 Stop Event
Option: Function:
[35] Digital input Use the value of DI27 in the logic rule
DI27 (High = true).
[36] Digital input Use the value of DI29 in the logic rule
DI29 (High = true).
[39] Start command This event is true if the frequency
converter is started by any means (either
via digital input, fieldbus, or other).
[40] Drive stopped This event is true if the frequency
converter is stopped or coasted by any
*
means (either via digital input, fieldbus,
or other).
[42] Auto Reset Trip This event is true if the frequency
converter is tripped (but not trip-locked)
and an automatic reset is issued.
[50] Comparator 4 Use the result of comparator 4 in the
logic rule.
[51] Comparator 5 Use the result of comparator 5 in the
logic rule.
[60] Logic rule 4 Use the result of logic rule 4 in the logic
rule.
[61] Logic rule 5 Use the result of logic rule 5 in the logic
rule.
[70] SL Time-out 3 Use the result of timer 3 in the logic rule.
[71] SL Time-out 4 Use the result of timer 4 in the logic rule.
[72] SL Time-out 5 Use the result of timer 5 in the logic rule.
[73] SL Time-out 6 Use the result of timer 6 in the logic rule.
[74] SL Time-out 7 Use the result of timer 7 in the logic rule.
[83] Broken Belt A broken-belt condition has been
detected. Enable this function in
parameter 22-60 Broken Belt Function.
13-03 Reset SLC
Option: Function:
[0] Do not reset Retains programmed settings in parameter
*
SLC group 13-** Smart Logic.
[1] Reset SLC Resets all parameters in parameter group
13-** Smart Logic to default settings.
3.9.3 13-1* Comparators
Comparators are used for comparing continuous variables
(such as output frequency, output current, and analog
input) to fixed preset values.
MG18B502
Programming Guide
Par. 13-10
Comparator Operand
Par. 13-12
Comparator Value
Illustration 3.14 Comparators
In addition, there are digital values that are compared to
fixed time values. See the explanation in
parameter 13-10 Comparator Operand. Comparators 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 0–5. Select index 0 to
program comparator 0, select index 1 to program
comparator 1, and so on.
13-10 Comparator Operand
Array [6]
Option:
[0] Disabled
*
[1] Reference
[2] Feedback
[3] Motor speed
[4] Motor Current
[6] Motor power
[7] Motor voltage
[12] Analog input AI53
[13] Analog input AI54
[20] Alarm number
[30] Counter A
[31] Counter B
13-11 Comparator Operator
Array [6]
Option:
[0] Less Than (<)
[1] Approx.Equal
(~)
*
Danfoss A/S © 04/2018 All rights reserved.
Par. 13-11
Comparator Operator
=
TRUE longer than.
. . .
. . .
Function:
Select the variable to be monitored by
the comparator.
Function:
Select [0] < for the result of the evaluation
to be true, when the variable selected in
parameter 13-10 Comparator Operand is
smaller than the fixed value in
parameter 13-12 Comparator Value. The
result is false, if the variable selected in
parameter 13-10 Comparator Operand is
greater than the fixed value in
parameter 13-12 Comparator Value.
Select [1] ≈ for the result of the evaluation
to be true, when the variable selected in
parameter 13-10 Comparator Operand is
approximately equal to the fixed value in
parameter 13-12 Comparator Value.
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