Danfoss VLT HVAC Basic Drive FC 101 Programming Manual page 62

Parameters
13-11 Comparator Operator
Array [6]
Option:
[1] Approx.Equal
*
(~)
3 3
[2] Greater Than
(>)
13-12 Comparator Value
Array [6]
Range:
0 [-9999 -
*
9999 ]
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:
0 s [0 -
*
3600 s]
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.
60
Function:
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.
Select [2] > for the inverse logic of option
[0] <.
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.
Function:
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.
®
VLT HVAC Basic Drive FC 101 Programming Guide
Par. 13-40
Logic Rule Boolean 1
Par. 13-42
Logic Rule Boolean 2
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:
[0] False
*
[1] True
[2] Running
[3] In range
[4] On reference
[7] Out of current
range
[8] Below I low
[9] Above I high
[16] Thermal warning
[17] Mains out of
range
[18] Reversing
[19] Warning
[20] Alarm (trip)
[21] Alarm (trip lock)
[22] Comparator 0
MG18B302 - Rev. 2013-09-02
Par. 13-41 Par. 13-43
Logic Rule Operator 1 Logic Rule Operator 2
. . .
. . .
. . .
. . .
Par. 13-44
Logic Rule Boolean 3
Function:
Enters the fixed value of FALSE in the
logic rule.
Enters the fixed value TRUE in the logic
rule.
See 13-01 Start Event for further
description.
See 13-01 Start Event for further
description.
See 13-01 Start Event for further
description.
See 13-01 Start Event for further
description.
See 13-01 Start Event for further
description.
See 13-01 Start Event for further
description.
See 13-01 Start Event for further
description.
See 13-01 Start Event for further
description.
See 13-01 Start Event for further
description.
See 13-01 Start Event for further
description.
See 13-01 Start Event for further
description.
See 13-01 Start Event for further
description.
Use the result of comparator 0 in the
logic rule.