Analog Input; Timers; Logic Rules - Danfoss VLT HVAC Basic Drive Programming Manual

Parameters
13-11 Comparator Operator
Array [6]
Option: Function:
mately equal to the fixed value in
13-12 Comparator Value.
[2] Greater Than (>) Select > [2] for the inverse logic of option
< [0].
13-12 Comparator Value
Array [6]
Range: Function:
0.0 [-9999.0 - Enter the 'trigger level' for the variable
*
9999.0 ] that is monitored by this comparator. This
is an array parameter containing
comparator values 0 to 5.

3.9.4 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.
13-20 SL Controller Timer
Array [8]
Range: Function:
0.0 s [0.0 - Enter the value to define the duration of the
*
3600.0 s] FALSE output from the programmed timer. A
timer is only FALSE if it is started by an action
(see par. 13-52 [29-31] and 13-52 [70-74] Start
timer X) and until the timer value has elapsed.
Array par. containing timers 0 to 7.

3.9.5 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.
VLT HVAC Basic Drive Programming Guide
Par. 13-40
Logic Rule Boolean 1
Par. 13-42
Logic Rule Boolean 2
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:
[0]
[1]
[2]
[3]
[4]
[7]
[8]
[9]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
®
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Par. 13-41
Logic Rule Operator 1
. . .
. . .
Par. 13-44
Logic Rule Boolean 3
Function:
False Enters the fixed value of FALSE in the
*
logic rule.
True Enters the fixed value TRUE in the logic
rule.
Running See 13-01 Start Event for further
description.
In range See 13-01 Start Event for further
description.
On reference See 13-01 Start Event for further
description.
Out of current See 13-01 Start Event for further
range description.
Below I low See 13-01 Start Event for further
description.
Above I high See 13-01 Start Event for further
description.
Thermal warning See 13-01 Start Event for further
description.
Mains out of range See 13-01 Start Event for further
description.
Reversing See 13-01 Start Event for further
description.
Warning See 13-01 Start Event for further
description.
Alarm (trip) See 13-01 Start Event for further
description.
Alarm (trip lock) See 13-01 Start Event for further
description.
Comparator 0 Use the result of comparator 0 in the
logic rule.
Par. 13-43
Logic Rule Operator 2
. . .
. . .
3
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