Danfoss VLT Decentral Drive FCD 302 Design Manual page 14

Product Overview
execute [0] action and start evaluating event. It is possible
to programme from 1 to 20 events and [1] actions.
When the last event/action has been executed, the
sequence starts over again from [0] event/[0] action.
Illustration 2.5 shows an example with three event/actions.
Start
event P13-01
State 1
Event 1/
Action 1
Stop
event P13-02
State 4
Event 4/
Action 4
Illustration 2.5 Example - Internal Current Control
Comparators
Comparators are used for comparing continuous variables
(that is, output frequency, output current, analog input
etc.) to fixed preset values.
Par. 13-11
Comparator Operator
Par. 13-10
Comparator Operand
=
TRUE longer than.
Par. 13-12
Comparator Value . . .
. . .
Illustration 2.6 Comparators
Logic Rules
Combine up to three boolean inputs (TRUE/FALSE inputs)
from timers, comparators, digital inputs, status bits and
events using the logical operators AND, OR, and NOT.
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
Illustration 2.7 Logic Rules
®
VLT Decentral Drive FCD 302
State 2
Event 2/
Action 2
Stop
event P13-02
State 3
Event 3/
Action 3
Stop
event P13-02
Par. 13-43
Logic Rule Operator 2
. . .
. . .
®
MG04H102 - VLT is a registered Danfoss trademark
Application Example
FC
+24 V 12
+24 V 13
D IN 18
D IN 19
COM 20
D IN 27
D IN 29
D IN 32
D IN 33
D IN
37
+10 V 50
A IN
53
A IN
54
COM
55
A OUT
42
COM
39
01
02
03
04
05
06
Table 2.1 Using SLC to Set a Relay
Parameters
Function Setting
4-30 Motor
Feedback Loss
Function [1] Warning
4-31 Motor 100 RPM
Feedback Speed
Error
4-32 Motor 5 s
Feedback Loss
Timeout
7-00 Speed PID [2] MCB 102
Feedback Source
17-11 Resolution 1024*
(PPR)
13-00 SL [1] On
Controller Mode
13-01 Start [19] Warning
Event
13-02 Stop [44] Reset
Event key
13-10 Comparat [21] Warning
or Operand no.
13-11 Comparat [1] ≈*
or Operator
13-12 Comparat 90
or Value
13-51 SL [22]
Controller Event Comparator 0
13-52 SL [32] Set
Controller Action digital out A
low
5-40 Function [80] SL digital
Relay output A
*=Default Value
Notes/comments:
If the limit in the feedback
monitor is exceeded, Warning
90 is issued. The SLC monitors
Warning 90 and in the case
that Warning 90 becomes TRUE
then Relay 1 is triggered.
External equipment can
indicate that service is required.
If the feedback error goes
below the limit again within 5 s
then the drive continues and
the warning disappears. Relay 1
remains triggered until pressing
[Reset] on the LCP.
13
2 2