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
par. 13-10
Comparator Operand
is smaller than the fixed value in par. 13-12
Comparator Value
. The
result will be FALSE, if the variable selected in par. 13-10
Comparator Operand
is greater than the
fixed value in par. 13-12
Comparator Value
.
[1] ≈ (equal) Select ≈ [1] for the result of the evaluation to be TRUE, when the variable selected in
par. 13-10
Comparator Operand
is approximately equal to the fixed value in par. 13-12
Comparator
Value
.
[2] > Select > [2] for the inverse logic of option < [0].
13-12 Comparator Value
Array [6]
Range: Function:
Application
dependent*
[-100000.000 - 100000.000 N/A] Enter the ‘trigger level’ for the variable that is monitored by this comparator. This is an array pa-
rameter containing comparator values 0 to 5.
3.13.4 13-2* Timers
This parameter group consists of timer parameters.
Use the result (TRUE or FALSE) from
timers
directly to define an
event
(see par. 13-51
SL Controller Event
), or as boolean input in a
logic rule
(see
par. 13-40
Logic Rule Boolean 1
, par. 13-42
Logic Rule Boolean 2
or par. 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.
13-20 SL Controller Timer
Array [3]
Range: Function:
Application
dependent*
[Application dependant] Enter the value to define the duration of the FALSE output from the programmed timer. A timer is
only FALSE if it is started by an action (i.e.
Start timer 1
[29]) and until the given timer value has
elapsed.
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 par. 13-40
Logic Rule Boolean 1
, par. 13-42
Logic Rule Boolean 2
and par. 13-44
Logic
Rule Boolean 3
. Define the operators used to logically combine the selected inputs in par. 13-41
Logic Rule Operator 1
and par. 13-43
Logic Rule Operator
2
.
Priority of calculation
The results of par. 13-40
Logic Rule Boolean 1
, par. 13-41
Logic Rule Operator 1
and par. 13-42
Logic Rule Boolean 2
are calculated first. The outcome
(TRUE / FALSE) of this calculation is combined with the settings of par. 13-43
Logic Rule Operator 2
and par. 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.
3 Parameter Description VLT
®
HVAC Drive Programming Guide
136
MG.11.C9.02 - VLT
®
is a registered Danfoss trademark
3
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