Danfoss VLT HVAC Basic Drive FC 101, Programming Manual

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13-11 Comparator Operator
Array [6]
Option: Function:
[1]
*
Approx.Equal
(~) Select [1] ≈ for the result of the evaluation
to be TRUE, when the variable selected in
13-10 Comparator Operand is approxi-
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
*
[-9999 -
9999 ] Enter the ‘trigger level’ for the variable 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. [29]
Start timer 1 ) 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 s
*
[0 -
3600 s] 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
(see
13-52 SL Controller Action [29-31] and 13-52 SL
Controller Action [70-74] Start timer X) and until
the timer value has elapsed. Array parameter
containing timers 0 to 7.
3.9.5 13-4* Logic Rules
Combine up to 3 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. 13-43
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
130BB673.10
Illustration 3.15 Logic Rules
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 13-01 Start Event for further
description.
[3] In range See 13-01 Start Event for further
description.
[4] On reference See 13-01 Start Event for further
description.
[7] Out of current
range See 13-01 Start Event for further
description.
[8] Below I low See 13-01 Start Event for further
description.
[9] Above I high See 13-01 Start Event for further
description.
[16] Thermal warning See 13-01 Start Event for further
description.
[17] Mains out of
range
See 13-01 Start Event for further
description.
[18] Reversing See 13-01 Start Event for further
description.
[19] Warning See 13-01 Start Event for further
description.
[20] Alarm (trip) See 13-01 Start Event for further
description.
[21] Alarm (trip lock) See 13-01 Start Event for further
description.
[22] Comparator 0 Use the result of comparator 0 in the
logic rule.
Parameters
VLT
®
HVAC Basic Drive FC 101 Programming Guide
60 MG18B302 - Rev. 2013-09-02
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