Danfoss VLT AutomationDrive FC 301 Programming Manual page 151

Parameter Descriptions
13-11 Comparator Operator
Option: Function:
[1] ≈ (equal) The result of the evaluation is 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] > Inverse logic of option [0] <.
[5] TRUE
longer
than..
[6] FALSE
longer
than..
[7] TRUE
shorter
than..
[8] FALSE
shorter
than..
13-12 Comparator Value
Array [6]
Range:
Size [-100000 - Enter the trigger level for the
related 100000 ] variable that is monitored by this
*
comparator. This is an array
parameter containing comparator
values 0–5.
3.13.3 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 3.55 Reset/Set Flip Flops
2 parameters are used, and the output can be used in the
logic rules and as events.
S
R
Flip Flop Output
Illustration 3.56 Flip Flop Outputs
MG33MO02
Programming Guide
Function:
Danfoss A/S © 01/2018 All rights reserved.
The 2 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 (for example, DI32) as start/
stop.
Parameter Setting
Parameter 13-00 SL Controller
On
Mode
Parameter 13-01 Start Event True
Parameter 13-02 Stop Event False
Parameter 13-40 Logic Rule [37] Digital
Boolean 1 [0] Input DI32
Parameter 13-42 Logic Rule
[2] Running –
Boolean 2 [0]
Parameter 13-41 Logic Rule [3] AND
Operator 1 [0] NOT
Parameter 13-40 Logic Rule [37] Digital
Boolean 1 [1] Input DI32
Parameter 13-42 Logic Rule
[2] Running –
Boolean 2 [1]
Parameter 13-41 Logic Rule
[1] AND
Operator 1 [1]
Parameter 13-15 RS-FF Operand
[26] Logic
S [0] rule 0
Parameter 13-16 RS-FF Operand [27] Logic
R [0] rule 1
Parameter 13-51 SL Controller [94] RS
Event [0] Flipflop 0
Parameter 13-52 SL Controller
[22] Run
Action [0]
Parameter 13-51 SL Controller [27] Logic
Event [1] rule 1
Parameter 13-52 SL Controller
[24] Stop
Action [1]
Table 3.26 Operators
13-15 RS-FF Operand S
Option: Function:
[0] False
[1] True
[2] Running
[3] In range
[4] On reference
3
Notes
–
–
–
–
–
–
–
Output from
parameter 13-41 Log
ic Rule Operator 1
[0].
Output from
parameter 13-41 Log
ic Rule Operator 1
[1].
Output from
parameter 13-15 RS-
FF Operand S and
parameter 13-16 RS-
FF Operand R.
–
–
–
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