Danfoss VLT 380-500 V Design Manual page 144

Handling of References
Case 3.
Ext. Reference
Absolute
-500 RPM -10 V
+500 RPM 10 V
Ext. Reference
Absolute
-500 RPM -10 V
+500 RPM 10 V
Illustration 15.11 Negative to Positive Reference with Dead Band, Sign Determines the Direction, -Maximum to +Maximum
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®
VLT Parallel Drive Modules
General Reference
parameters:
Reference Range: -Max - +Max
Minimum Reference: Don't care
Maximum Reference: 1000 RPM (100,0%)
Analog input 53
Low reference 0 RPM
High reference +500 RPM
Low voltage 1 V
High voltage 10 V
500
Ext. source 1
Range:
-50,0% (-500 RPM) -10
+50,0% (+500 RPM)
-500
Analog input 54
Low reference -500 RPM
High reference +500 RPM
Low voltage -10 V
500
High voltage +10 V
Ext. source 2
Range:
-10
-50,0% (-500 RPM)
+50,0% (+500 RPM)
-500
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General Motor
parameters:
Motor speed direction: Both directions
Motor speed Low limit: 0 RPM
Dead band
Motor speed high limit: 1500 RPM
-1 V to 1 V
Ext. reference
+
Range:
-100,0% (-1000 RPM)
+100,0% (+1000 RPM)
RPM
Limited to:
-200%- +200%
-1
(-2000 RPM-
V
+2000 RPM)
10
1
Limited to:
-100%- +100%
(-1000 RPM-
+1000 RPM)
RPM
Reference is scaled
according to max
reference
V
10
Limits speed to min max
motor speed
No Dead
Band
Reference
algorithm
Reference
Range:
-100,0% (-1000 RPM)
+100,0% (+1000 RPM)
Scale to
RPM
Speed
Setpoint
Range:
-1000 RPM
+1000 RPM
Motor PID
Motor
Motor
control
MG37N102