Programming Your Application 6-17
590 Series DC Digital Converter
CURRENT PROFILE
When speed control is obtained by field
weakening, the ability of the motor to
commutate armature current is reduced at
low field currents. Also some motors exhibit
commutation limitations at higher speeds
even with rated field current.
Functional Description
IMAX BRK 1 (SPD1)
IMAX BRK 2 (SPD2)
SPD BRK 1 (LOW)
SPD BRK 2 (HIGH)
Current Limit
Speed Demand
CURRENT PROFILE
100.0 %
–
[ 32] SPD BRK 1 (LOW)
–
100.0 %
–
[ 31] SPD BRK 2 (HIGH)
–
200.0 %
–
[ 93] IMAX BRK 1 (SPD1)
–
200.0 %
–
[ 33] IMAX BRK 2 (SPD2)
–
MMI Menu Map
1
SETUP PARAMETERS
2
CURRENT PROFILE
SPD BRK 1 (LOW)
SPD BRK 2 (HIGH)
IMAX BRK 1 (SPD1)
IMAX BRK 2 (SPD2)
Parameter Descriptions
SPD BRK 1 (LOW)
Range: 0.0 to 100.0 %
This is the motor speed at which current limit profiling begins.
SPD BRK 2 (HIGH)
Range: 0.0 to 100.0 %
This is the upper speed limit at which current limit profiling ends.
IMAX BRK 1 (SPD1)
Range: 0.0 to 200.0 %
This sets the current limit value at or below speed break-point 1, provided the other current
limits are greater than this setting.
IMAX BRK 2 (SPD2)
Range: 0.0 to 200.0 %
This sets the current limit value at or above speed break-point 2, provided the other current
limits are greater than this setting.
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