EasyManuals Logo

Danfoss VLT HVAC Series User Manual

Danfoss VLT HVAC Series
338 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #148 background imageLoading...
Page #148 background image
13-12 Comparator Value
Array [6]
Range: Function:
0 N/A* [-100000.000 - 100000.000 N/A] Enter the ‘trigger level’ for the variable that is monitored by this comparator. This is an array pa-
rameter containing comparator values 0 to 5.
3.13.4 13-2* Timers
This parameter group consists of timer parameters.
Use the result (TRUE or FALSE) from
timers
directly to define an
event
(see par.13-51
SL Controller Event
), or as Boolean input in a
logic rule
(see par.
13-40
Logic Rule Boolean 1
, par.13-42
Logic Rule Boolean 2
or par.13-44
Logic Rule Boolean 3
). A timer is only FALSE when started by an action (i.e.,
Start timer 1 [29]) 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 an index of 0 to 2. Select index 0 to program Timer 0, select index 1 to program Timer
1, and so on.
13-20 SL Controller Timer
Array [3]
Range: Function:
0 N/A* [0.000 - 360000.000 N/A] 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 (i.e.,
Start timer 1
[29]) and until the given timer value has
elapsed.
3.13.5 13-4* 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. Select Boolean inputs for the calculation in par.13-40
Logic Rule Boolean 1
, par.13-42
Logic Rule Boolean 2
and par.13-44
Logic Rule
Boolean 3
. Define the operators used to logically combine the selected inputs in par.13-41
Logic Rule Operator 1
and par.13-43
Logic Rule Operator 2
.
Priority of calculation
The results of par.13-40
Logic Rule Boolean 1
, par.13-41
Logic Rule Operator 1
and par.13-42
Logic Rule Boolean 2
are calculated first. The outcome
(TRUE / FALSE) of this calculation is combined with the settings of par.13-43
Logic Rule Operator 2
and par.13-44
Logic Rule Boolean 3
, yielding the final
result (TRUE / FALSE) of the logic rule.
13-40 Logic Rule Boolean 1
Array [6]
Option: Function:
[0] * FALSE Enters the fixed value of FALSE in the logic rule.
[1] TRUE Enters the fixed value TRUE in the logic rule.
[2] Running See parameter group 5-3* for further description.
[3] In range See parameter group 5-3* for further description.
[4] On reference See parameter group 5-3* for further description.
[5] Torque limit See parameter group 5-3* for further description.
[6] Current limit See parameter group 5-3* for further description.
[7] Out of current range See parameter group 5-3* for further description.
[8] Below I low See parameter group 5-3* for further description.
3 Parameter Description VLT
®
HVAC Drive Programming Guide
3-124
MG.11.C6.22 - VLT
®
is a registered Danfoss trademark
3

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Danfoss VLT HVAC Series and is the answer not in the manual?

Danfoss VLT HVAC Series Specifications

General IconGeneral
Protection FeaturesOvercurrent, Overvoltage, Undervoltage, Overtemperature, Short circuit
Communication InterfacesProfibus, Ethernet
Cooling MethodForced convection
Ambient Temperature-10°C to +40°C
Enclosure RatingIP20, IP21, IP55
Output Voltage0 - 100% of supply voltage

Related product manuals