Danfoss VLT FC 100 Series Programming Manual page 110

Parameter Description
13-11 Comparator Operator
Array [6]
Option: Function:
[0] < Select < [0] for the result of the evaluation
*
to be TRUE, when the variable selected in
13-10 Comparator Operand is smaller than
the fixed value in 13-12 Comparator Value.
The result will be FALSE, if the variable
selected in 13-10 Comparator Operand is
greater than the fixed value in
13-12 Comparator Value.
[1] = (equal) Select ≈ [1] for the result of the evaluation
to be TRUE, when the variable selected in
13-10 Comparator Operand is approximately
equal to the fixed value in 13-12 Comparator
Value.
[2] > Select > [2] for the inverse logic of option <
[0].
[5] TRUE longer
than..
[6] FALSE longer
than..
[7] TRUE shorter
than..
[8] FALSE
shorter
than..
13-12 Comparator Value
Array [6]
Range:
Size related [-100000.000 -
*
100000.000 ]
3.13.4 13-2* Timers
Use the result (TRUE or FALSE) from timers directly to
define an event (see 13-51 SL Controller Event), or as
Boolean input in a logic rule (see 13-40 Logic Rule Boolean
1, 13-42 Logic Rule Boolean 2 or 13-44 Logic Rule Boolean 3).
A timer is only FALSE when started by an action (i.e., Start
timer 1 [29]) until the timer value entered in this
parameter is elapsed. Then it becomes TRUE again.
All parameters in this parameter group are array
parameters with index 0 to 2. Select index 0 to program
Timer 0, select index 1 to program Timer 1, and so on.
®
VLT HVAC Drive Programming Guide
Function:
Enter the 'trigger level' for the
variable that is monitored by
this comparator. This is an
array parameter containing
comparator values 0 to 5.
MG11CD22 - VLT ® is a registered Danfoss trademark
13-20 SL Controller Timer
Array [3]
Range:
Size related [ 0.000 - 0.000 ]
*
3.13.5 13-4* Logic Rules
Combine up to three boolean inputs (TRUE / FALSE inputs)
from timers, comparators, digital inputs, status bits and
events using the logical operators AND, OR, and NOT.
Select Boolean inputs for the calculation in 13-40 Logic Rule
Boolean 1, 13-42 Logic Rule Boolean 2 and 13-44 Logic Rule
Boolean 3. Define the operators used to logically combine
the selected inputs in 13-41 Logic Rule Operator 1 and
13-43 Logic Rule Operator 2.
Par. 13-41
Logic Rule Operator 1
Par. 13-40
Logic Rule Boolean 1
Par. 13-42
Logic Rule Boolean 2 . . .
. . .
Par. 13-44
Logic Rule Boolean 3
Figure 3.33
Priority of calculation
The results of 13-40 Logic Rule Boolean 1, 13-41 Logic Rule
Operator 1 and 13-42 Logic Rule Boolean 2 are calculated
first. The outcome (TRUE / FALSE) of this calculation is
combined with the settings of 13-43 Logic Rule Operator 2
and 13-44 Logic Rule Boolean 3, yielding the final result
(TRUE / FALSE) of the logic rule.
13-40 Logic Rule Boolean 1
Array [6]
Option: Function:
[0] FALSE Enters the fixed value of FALSE in the
*
logic rule.
[1] TRUE Enters the fixed value TRUE in the
logic rule.
[2] Running See parameter group 5-3* for further
description.
[3] In range See parameter group 5-3* for further
description.
[4] On reference See parameter group 5-3* for further
description.
[5] Torque limit See parameter group 5-3* for further
description.
Function:
3
Par. 13-43
Logic Rule Operator 2
. . .
. . .
3-83
3