Danfoss VLT CDS302 Operating Instructions Manual page 71

Parameter Descriptions
6-50 Terminal 42 Output
Option: Function:
[105] Torque rel The torque is related to the motor torque
to rated setting.
motor
torque 0-20
mA
[106] Power 0-20 Taken from 1-20 Motor Power [kW].
mA
[107] Speed 0-20 Taken from 3-03 Maximum Reference. 20 mA
mA = value in 3-03 Maximum Reference
[108] Torque ref. Torque reference related to 160% torque.
0-20 mA
[109] Max Out In relation to 4-19 Max Output Frequency.
Freq 0-20
mA
[134] Torque% The torque setting is related to setting in
lim. 4-20 4-16 Torque Limit Motor Mode.
mA
[135] Torque% The torque setting is related to the motor
nom 4-20 torque setting.
mA
[141] Bus ctrl. 4-54 Warning Reference Low defines the
0-20 mA, behaviour of the analog output in case of
timeout bus time-out.
[142] Bus ctrl. 4-54 Warning Reference Low defines the
4-20 mA, behaviour of the analog output in case of
timeout bus time-out.
[150] Max Out In relation to 4-19 Max Output Frequency.
Freq 4-20
mA
[119] Torque %
lim
[149] Torque % Analog output at zero torque = 12 mA.
lim 4-20mA Motoric torque will increase the output
current to max torque limit 20 mA (set in
4-16 Torque Limit Motor Mode).
Generative torque will decrease the output to
torque limit Generator Mode (set in
4-17 Torque Limit Generator Mode)
Ex: 4-16 Torque Limit Motor Mode: 200% and
4-17 Torque Limit Generator Mode: 200%. 20
mA = 200% Motoric and 4 mA = 200%
Generatoric.
0mA 4mA
Par 4-17
(200%)
Illustration 6.7
[0] No When no signal on the analog output.
*
operation
[52] MCO
0-20mA
MG34M302 - VLT
Operating Instructions VLT
12 mA 20 mA
0% Torque Par 4-16
(200%)
®
is a registered Danfoss trademark/Commercial Compressor
®
CDS302 and CDS303
6-50 Terminal 42 Output
Option: Function:
[53] MCO
4-20mA
[100] Output 0 Hz = 0 mA; 100 Hz = 20 mA.
frequency
[101] Reference 3-00 Reference Range [Min - Max] 0% = 0 mA;
100% = 20 mA
3-00 Reference Range [-Max - Max] -100% = 0
mA; 0% = 10 mA; +100% = 20 mA
[102] Feedback
[103] Motor Value is taken from 16-37 Inv. Max. Current.
current Inverter max. current (160% current) is equal
to 20 mA.
Example: Inverter norm current (11 kW) = 24
A. 160% = 38.4 A. Motor norm current = 22A
Read-out 11.46 mA.
mA x 22 A
20
38.4 A
In case the norm motor current is equal to
20 mA, the output setting of 6-52 Terminal 42
Output Max Scale is:
I VLT x 100
Max
I Motor
Norm
[104] Torque rel The torque setting is related to setting in
to limit 4-16 Torque Limit Motor Mode
[105] Torq relate The torque is related to the motor torque
to rated setting.
[106] Power Taken from 1-20 Motor Power [kW].
[107] Speed Taken from 3-03 Maximum Reference. 20 mA
= value in 3-03 Maximum Reference
[108] Torque Torque reference related to 160% torque.
[109] Max Out 0 Hz = 0 mA,4-19 Max Output Frequency = 20
Freq mA.
[130] Output 0 Hz = 4 mA, 100 Hz = 20 mA
freq.
4-20mA
[131] Reference 3-00 Reference Range [Min-Max] 0% = 4 mA;
4-20mA 100% = 20 mA
3-00 Reference Range [-Max-Max] -100% = 4
mA; 0% = 12 mA; +100% = 20 mA
[132] Feedback
4-20mA
[133] Motor cur. Value is taken from 16-37 Inv. Max. Current.
4-20mA Inverter max. current (160% current) is equal
to 20 mA.
Example: Inverter norm current (11 kW) = 24
A. 160% = 38.4 A. Motor norm current = 22
A Read-out 11.46 mA.
mA x 22 A
16
38.4 A
In case the norm motor current is equal to
20 mA, the output setting of 6-62 Terminal
X30/8 Max. Scale is:
I VLT x 100
Max
I Motor
Norm
mA
= 11.46
38.4 x 100
= = 175 %
22
mA = 13.17 mA
+ 4
38.4 x 100
= = 175 %
22
71
6 6