Danfoss VLT AutomationDrive FC 300 Programming Guide

3.14.3 13-1* Comparators
Comparators are used for comparing continuous variables (i.e. output frequency, output current, analog input etc.) to fixed preset values. In addition,
there are digital values that will be compared to fixed time values. See explanation in par. 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:
Choice [1] to [31] are variables which will be compared based on their values. Choice [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 par. 13-11
Comparator Operator .
Select the variable to be monitored by the comparator.
[0] * DISABLED
DISABLED [0] The comparator is disabled.
[1] Reference
Reference [1] The resulting remote reference (not local) as a percentage.
[2] Feedback
Feedback [2] In the unit [RPM] or [Hz]
[3] Motor speed
Motor speed [3] [RPM] or [Hz]
[4] Motor current
Motor current [4] [A]
[5] Motor torque
Motor torque [5] [Nm]
[6] Motor power
Motor power [6] [kW] or [hp]
[7] Motor voltage
Motor voltage [7] [V]
[8] DC-link voltage
DC-link voltage [8] [V]
[9] Motor thermal
Motor thermal [9] Expressed as a percentage.
[10] Drive thermal
VLT thermal [10] Expressed as a percentage.
[11] Heat sink temp.
Heat sink temp [11] Expressed as a percentage.
[12] Analog input AI53
Analog input AI53 [12] Expressed as a percentage.
[13] Analog input AI54
Analog input AI54 [13] Expressed as a percentage.
[14] Analog input AIFB10
Analog input AIFB10 [14] [V]. AIFB10 is internal 10 V supply.
[15] Analog input AIS24V
Analog input AIS24V [15] [V] Analog input AICCT [17] [°]. AIS24V is switch mode power supply:
SMPS 24 V.
[17] Analog input AICCT Analog input AICCT [17] [°]. AICCT is control card temperature.
[18] Pulse input FI29
Pulse input FI29 [18] Expressed as a percentage.
[19] Pulse input FI33
Pulse input FI33 [19] Expressed as a percentage.
[20] Alarm number
Alarm number [20] The error number.
[21] Warning number
[22] Analog input x30 11
[23] Analog input x30 12
[30] Counter A
Counter A [30] Number of counts
[31] Counter B
Counter B [31] Number of counts
[50] FALSE
False [50] Enters the fixed value of false in the comparator.
[51] TRUE
True [51] Enters the fixed value of true in the comparator.
3 Parameter descriptions FC 300 Programming Guide
180 MG.33.M8.02 - VLT
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Danfoss VLT AutomationDrive FC 300 Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 300
Category	DC Drives
Language	English