Leroy-Somer digitax st User Manual page 52

Table 9.4 Drive status word bit functions
Bit
9
10
11
12
13
14
15
52
Parameter Description
Regenerating
Unidrive SP, Affinity, Digidrive SK and Digitax ST: Indicates that power is
being transferred from the motor to the drive.
Pr 10.10 Mentor MP only: Indicates that power is being transferred from the drive to
the supply.
Regen mode (Unidrive SP only): Indicates that power is being transferred
from the Unidrive SP to the supply.
Dynamic brake active
Pr 10.11 Indicates that the braking IGBT is active. If the IGBT becomes active, this
parameter will remain on for at least one second.
Dynamic brake alarm
Pr 10.12 Dynamic brake alarm is set when the braking IGBT is active, and the
braking energy accumulator is greater than 75%.
Direction commanded
Direction commanded is set to 1 if the Pre-ramp speed reference (Pr 1.03)
Pr 10.13
is negative and reset to 0 if the Pre-ramp speed reference is zero or
positive.
Direction running
A 0 indicates forward direction and a 1 indicates reverse direction. The
Pr 10.14
source of this bit is Pr 2.01 for open loop mode and Pr 3.02 for closed loop
and servo modes.
Mains loss (Not Mentor MP)
Mains loss indicates that the drive has detected a mains loss from the level
of the DC bus voltage. This parameter can only become active if mains loss
Pr 10.15 ride through or mains loss stop modes are selected. Refer to Pr 6.03 in the
drive Advanced User Guide for more details.
Unidrive SP only - In regen mode, mains loss is the inverse of Pr 3.07.
Refer to the Unidrive SP Advanced User Guide for more details.
Not Used Reserved
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