4.10.3 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 4.17 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]
Option:
Function:
Select the variable to be monitored by
the comparator.
[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]
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 value in
parameter 13-12 Comparator Value
. The
result is false, if the variable selected in
parameter 13-10 Comparator Operand
is
13-11 Comparator Operator
Array [6]
Option:
Function:
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]
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.
4.10.4 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 13-40 Logic
Rule Boolean 1
,
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 is 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
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
parameter 13-52 SL Controller Action
[29–31] and
parameter 13-52 SL Controller Action
[70–74] Start
timer X) and until the timer value has elapsed.
Array parameters contain timers 0–7.
4.10.5 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
parameter 13-40 Logic
Rule Boolean 1
,
parameter 13-42 Logic Rule Boolean 2
, and
Parameters
VLT
®
DriveMotor FCP 106/FCM 106
84
Danfoss A/S © 11/2015 All rights reserved.
MG03N202
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4
Summary of Contents for VLT DriveMotor FCP 106
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