Danfoss VLT CDS302 Operating Instructions Manual page 85

Parameter Descriptions
13-03 Reset SLC
Option: Function:
[0] Do not reset Retains programmed settings in all
*
SLC parameter group 13-** Smart Logic Control.
[1] Reset SLC Resets all parameters in parameter group
13-** Smart Logic Control to default
settings.
6.10.3 13-1* Comparators
Comparators are used for comparing continuous variables
(i.e. 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 6.14
In addition, there are digital values that will be compared
to fixed time values. See explanation in 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 to 5. Select index 0 to programme
Comparator 0, select index 1 to programme Comparator 1,
and so on.
13-10 Comparator Operand
Array [6]
Option: Function:
Choices [1] to [31] are variables which
will be compared based on their
values. Choices [50] to [186] are digital
values (TRUE/FALSE) where the
comparison is based on the amount of
time during which they are set to
TRUE or FALSE, respectively. See
13-11 Comparator Operator.
Select the variable to be monitored by
the comparator.
[0] DISABLED The comparator is disabled.
*
[1] Reference The resulting remote reference (not
local) as a percentage.
[2] Feedback In the unit [RPM] or [Hz]
[3] Motor speed [RPM] or [Hz]
[4] Motor current [A]
MG34M302 - VLT
®
Operating Instructions VLT CDS302 and CDS303
13-10 Comparator Operand
Array [6]
Option:
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[30]
[31]
[50]
[51]
[52]
[53]
[54]
[55]
[56]
[60]
®
is a registered Danfoss trademark/Commercial Compressor
Function:
Motor torque [Nm]
Motor power [kW] or [hp]
Motor voltage [V]
DC-link voltage [V]
Motor thermal Expressed as a percentage.
Drive thermal Expressed as a percentage.
Heat sink temp. Expressed as a percentage.
Analog input AI53 Expressed as a percentage.
Analog input AI54 Expressed as a percentage.
Analog input [V]. AIFB10 is internal 10 V supply.
AIFB10
Analog input [V] Analog input AICCT [17] [°]. AIS24V
AIS24V is switch mode power supply: SMPS
24V.
Analog input [°]. AICCT is control card temperature.
AICCT
Pulse input FI29 Expressed as a percentage.
Pulse input FI33 Expressed as a percentage.
Alarm number The error number.
Warning number
Analog input x30
11
Analog input x30
12
Counter A Number of counts
Counter B Number of counts
FALSE Enters the fixed value of false in the
comparator.
TRUE Enters the fixed value of true in the
comparator.
Control ready The control board receives supply
voltage
Drive ready The frequency converter is ready for
operation and applies a supply signal
on the control board.
Running The motor is running.
Reversing The output is high when the
frequency converter is running counter
clockwise (the logical product of the
status bits "running" AND "reverse")
In range The motor is running within the
programmed current and speed
ranges set in 4-50 Warning Current Low
to 4-53 Warning Speed High.
On reference The motor is running on reference.
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