GE Industrial Solutions DV-300 DC Drive Users Manual - Manual (Page 152)

GEI-100332Ga
——— FUNCTION DESCRIPTION ———
6
24
speed
torque
T current lim +
T current lim - T current lim -
T current lim +
speed
torque
T current lim +
T current lim -
T current lim -
T current lim +
+1% of Motor nom speed -1% of Motor nom speed
Figure 6.5.2.1 Torque limits with T curr lim type = T lim +/- Figure 6.5.2.2: Torque limits with T curr lim type = T lim mot/gen
T current lim Symmetrical current limit for both current directions for 6KDV3 ... Q4 converters.
Defined as a percentage of the Full load curr parameter. The maximum value depends
on the Enable overload parameter.
Enable overload Disabled T current limit 100 % max
Enable overload Enabled T current limit 200% max
If the T current limit parameter is changed, the Parameter T current lim + and T current
lim - parameters are set to the same value. If both these parameters are subsequently
changed, the last change is valid.
T current lim + Setting of the drive current limit for the positive current direction (clockwise drive and
counter-clockwise brake). Entered as a percentage of the Full load curr value. The
maximum value depends on the value of the Enable overload parameter.
Enable overload Disabled T current lim+ 100 % max
Enable overload Enabled T current lim+ 200% max
T current lim - Setting of the drive current limit for the negative current direction (counterclockwise
drive and clockwise brake). Entered as a percentage of the Full load curr parameter.
The maximum value depends on the value of the Enable overload parameter. This
parameter is not active for the 6KDV3 ... Q4 converters.
Enable overload Disabled T current lim- 100 % max
Enable overload Enabled T current lim- 200% max
Curr limit state Status message, indicating whether the drive is working with the set current limit or not.
High Drive working at the current limit. “I
Limit
” LED lights up.
Low Drive not working at the current limit.
In use Tcur lim + Status message, indicating the used value of the current limit for the positive torque
direction as a percentage of Full load curr.
In use Tcur lim - Status message, indicating the used value of the current limit for the negative torque
direction as a percentage of Full load curr.
Current lim red Setting of the armature current limit, as % of Full load curr, when the Torque reduct
function is active.
Torque reduct Selection for torque reduction. This function can be assigned to a freely programmable
digital input. When the torque reduction function is active, the current limit changes
accordingly by the percentage defined with the Current lim red parameter.
High Torque reduction not active
Low Torque reduction active