IDN 91 (S-0-0091) Bipolar Velocity Limit

Establishes the maximum acceptable velocity command in both the clockwise and counterclockwise directions. In velocity mode and during homing, velocity commands that exceed the bipolar velocity limit are clamped to the bipolar velocity limit. In position mode, the velocity is monitored, and if the velocity exceeds the bipolar velocity limit, a fault is generated ( IDN 129 , bit 10).

The „Bipolar Velocity Limit“ (IDN 91) is linked to the „Positive and Negative Velocity Limit Values“ ( IDN 38 and IDN 39 ). When a value is written to IDN 91, the same value is also written to IDN 38 and IDN 39 (with the appropriate signs). IDN 38 and IDN 39 must have the same absolute value for IDN 91 to be valid. If they do not have the same absolute value when IDN 91 is read, then the drive will return error message 7008, „Invalid Data“ for IDN 91.