3.9.3 13-1* Comparators
Comparators are used for comparing continuous variables
(such as output frequency, output current, and analog
input) to fixed preset values.
Par. 13-11
Comparator Operator
=
TRUE longer than.
. . .
. . .
Par. 13-10
Comparator Operand
Par. 13-12
Comparator Value
130BB672.10
Illustration 3.12 Comparators
In addition, there are digital values that are compared to
fixed time values. See the explanation in
parameter 13-10 Comparator Operand
. Comparators are
evaluated once in each scan interval. Use the result (true
or false) directly. All parameters in this parameter group
are array parameters with index 0–5. Select index 0 to
program comparator 0, select index 1 to program
comparator 1, and so on.
13-10 Comparator Operand
Array [6]
Select the variable to be monitored by the comparator.
Option:
Function:
[0]
*
Disabled
[1]
Reference %
[2]
Feedback %
[3]
Motor speed
[4]
Motor Current
[6]
Motor power
[7]
Motor voltage
[12]
Analog input
AI53
[13]
Analog input
AI54
[18]
Pulse input
FI29
[20]
Alarm number
[30]
Counter A
[31]
Counter B
13-11 Comparator Operator
Array [6]
Select the operator to be used in the comparison.
Option:
Function:
[0]
Less Than (<)
Select
[0]
< for the result of the
evaluation to be true, when the
variable selected in
parameter 13-10 Comparator
Operand
is smaller than the fixed
13-11 Comparator Operator
Array [6]
Select the operator to be used in the comparison.
Option:
Function:
value in
parameter 13-12 Comparator Value
The result is false, if the variable
selected in
parameter 13-10 Comparator
Operand
is greater than the fixed
value in
parameter 13-12 Comparator Value
[1]
*
Approx.Equal
(~)
Select
[1]
≈
for the result of the
evaluation to be true, when the
variable selected in
parameter 13-10 Comparator
Operand
is approximately equal to
the fixed value in
parameter 13-12 Comparator Value
[2]
Greater Than
(>)
Select
[2]
> for the inverse logic of
option
[0]
<.
13-12 Comparator Value
Array [6]
Enter the trigger level for the variable that is monitored by this
comparator.
Range:
Function:
0
*
[-9999 -
9999 ]
Enter the trigger level for the
variable that is monitored by this
comparator. This parameter is an
array parameter containing
comparator values 0–5.
3.9.4 13-2* Timers
Use the result (true or false) from timers directly to define
an event (see
parameter 13-51 SL Controller Event
), or as
boolean input in a logic rule (see
parameter 13-42 Logic Rule Boolean 2
, or
parameter 13-44 Logic Rule Boolean 3
). A timer is only false
when started by an action (for example
[29] Start timer 1
)
until the timer value entered in this parameter has elapsed.
Then it becomes true again.
All parameters in this parameter group are array
parameters with index 0–2. Select index 0 to program
timer 0, select index 1 to program timer 1, and so on.
13-20 SL Controller Timer
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
[29–31] and [70–
Parameters
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