Rockwell Automation 1395 DC Drive, 800-1250 Hp, FRN 5.XX-9.30 - Manual (Page 108)

Chapter 5
Programming Parameters
5-17
Contactor closed (Bit 4) : A 1-bit field indicating the status of the
contactor. 1 denotes contactor closed and 0 denotes open.
Drive running (Bit 5) : A 1-bit field, when set to 1, indicates the
drive has acknowledged the start or jog inputs in the logic command
and is regulating speed. 1 denotes Drive is running and zero not
running.
Running reverse (Bit 6) : A 1-bit field, indicating the motor is
moving at a non-zero velocity in the reverse direction. 1 denotes
reverse rotation and 0 denotes zero or forward rotation.
Ready (Bit 7) : A 1-bit field, when set to 1, indicates the drive is
ready to accept a start command, and regulate to the speed or torque
selected. Set to 0 indicates not ready. Conditions required for ready
are: no Stop input from any logic command, no hard or soft fault,
ECOAST closed and less than 15% armature voltage. The ready will
be set to 0 unless all of the previous conditions are true.
At current limit (Bit 8) : A 1-bit field that is set to 1 when the
armature current request exceeds the forward or reverse bridge
current limit value. It is set to 0 if the armature current request is
within the forward and reverse bridge limits. The armature current
reference (Parameter 111) is compared to the forward bridge current
limit (Parameter 663) and the reverse bridge current limit (Parameter
664) to accomplish this.
At set speed (Bit 9) : A 1-bit field that is set to 1 when the actual
velocity of the motor is within a tolerance of the selected reference
speed. Otherwise, set to 0. Internally in the drive, feedback velocity
is compared to the pre ramp velocity reference (Parameter 102), and
if the difference is within the up to speed tolerance (Parameter 709),
the at speed bit is set to 1.
At zero speed (Bit 10) : A 1-bit field that is set to 1 when the actual
velocity of the motor is within a tolerance of zero speed. Otherwise,
set to 0. Internally in the drive, if the feedback velocity (Parameter
106) is within the zero speed tolerance band (Parameter 710), then at
zero speed bit is set to 1.
At speed 1 (Bit 11) : A 1-bit field that is set to 1 when the actual
velocity of the motor is within a tolerance of the at speed 1 setpoint.
Otherwise, set to 0. Internally in the drive, feedback velocity
(Parameter 106) is compared to at
speed 1 (Parameter 704), and if the
absolute value of the difference is within the up to speed tolerance
(Parameter 709), the at speed 1 bit is set to 1.
At speed 2 (Bit 12) : A 1-bit field that is set to 1 when the actual
velocity of the motor is within a tolerance of the at speed 2 setpoint.
Otherwise, set to 0. Internally in the drive, feedback velocity
(Parameter 106) is compared to at speed 2 (Parameter 705), and if the
absolute value of the difference is within the up to speed tolerance
(Parameter 709), the at speed 2 bit is set to 2.