Danfoss VLT CDS302 Operating Instructions Manual page 87

Parameter Descriptions
13-10 Comparator Operand
Array [6]
Option: Function:
Linked to hand Auto, at the same time
as the LCP is in Hand On mode.
[181] Remote ref. active High when 3-13 Reference Site= [1]
Remote or [0] Linked to hand/auto,
while the LCP is in Auto On mode.
[182] Start command High when there is an active start
command, and no stop command.
[183] Drive stopped A stop command (Jog, Stop, Qstop,
Coast) is issued – and not from the
SLC itself.
[185] Drive in hand High when the frequency converter is
mode in hand mode.
[186] Drive in auto High when the frequency converter is
mode in auto mode.
[187] Start command
given
[190] Digital input x30 2
[191] Digital input x30 3
[192] Digital input x30 4
[193] Digital input x46 1
[194] Digital input x46 2
[195] Digital input x46 3
[196] Digital input x46 4
[197] Digital input x46 5
[198] Digital input x46 6
[199] Digital input x46 7
13-11 Comparator Operator
Array [6]
Option: Function:
Select the operator to be used in the
comparison. This is an array parameter
containing comparator operators 0 to 5.
[0] < The result of the evaluation is TRUE, when
the variable selected in 13-10 Comparator
Operand is smaller than the fixed value in
13-12 Comparator Value. The result is FALSE,
if the variable selected in 13-10 Comparator
Operand is greater than the fixed value in
13-12 Comparator Value.
[1] ≈ (equal) The result of the evaluation is TRUE, when
*
the variable selected in 13-10 Comparator
Operand is approximately equal to the fixed
value in 13-12 Comparator Value.
[2] > Inverse logic of option < [0].
[5] TRUE longer
than..
[6] FALSE
longer than..
MG34M302 - VLT
®
Operating Instructions VLT CDS302 and CDS303
13-11 Comparator Operator
Array [6]
Option:
[7] TRUE shorter
than..
[8] FALSE
shorter
than..
13-12 Comparator Value
Array [6]
Range:
Size related
6.10.4 13-1* RS Flip Flops
The Reset-Set Flip Flops hold the signal until set/reset.
Par. 13-15
RS-FF Operand S
Par. 13-16
RS-FF Operand R
Illustration 6.15
Two parameters are used and the output can be used in
the logic rules and as events.
S
R
Flip Flop Output
Illustration 6.16
The two operators can be selected from a long list. As a
special case, the same digital input can be used as both
Set and Reset, making it possible to use the same digital
input as start/stop. The following settings can be used to
set up the same digital input as start/stop (example given
with DI32 but is not a requirement).
Parameter
13-00 SL Controller Mode
13-01 Start Event
13-02 Stop Event
®
is a registered Danfoss trademark/Commercial Compressor
Function:
Function:
[-100000.000 - Enter the 'trigger level' for the
*
100000.000 ] variable that is monitored by
this comtor. This is an array
parameter containing comtor
values 0 to 5.
Setting
On
TRUE
FALSE
6
Notes
87
6