Rockwell Automation 1395 DC Drive, 800-1250 Hp, FRN 5.XX-9.30 - Manual (Page 113)

Chapter 5
Programming Parameters
5-22
Parameter 112 – Armature Current Feedback [Arm Current Fdbk]
Internal Units : 4096 = 1000h = 1 PU = 100% rated arm. current
Programming Terminal units : Amps
Description : This parameter indicates the latest armature current
feedback value.
Parameter 113 – Armature Current PI Output [Arm Current PI
Out]
Internal Units : 2048 = 1 pu armature voltage
Programming Terminal units : None
Description : This parameter indicates the latest output of the
armature current PI regulator.
Parameter 114 – Armature Current Firing Angle [Arm Cur Fire
Ang]
Internal Units : 2048 = 90 degrees
Programming Terminal units : None
Description : This parameter indicates the latest armature current
firing angle, angle of retard, alpha.
Parameter 115 – Flux Command [Flux Command]
Internal Units : 4096 = 1000h = 1 PU = 100% rated field flux
Programming Terminal units: Percent rated field flux
Description : This parameter indicates the latest field flux reference
value as determined by the field control. When field weakening, this
parameter may
be less than the Field Flux Reference (Parm 676) or
the Field Economy Reference (parm 674).
100% rated field flux represents the motor field flux present when
operating at base motor speed with the rated armature voltage present
across the armature. For a constant motor speed, as field flux is
reduced, the armature voltage should decrease proportionally. The
field flux linearization table (para 677 thru 685) ensures that the
relationship between field flux and armature voltage remains linear.
Parameter 116 – AC Line Voltage [AC Line Voltage]
Internal Units : volts x 10
Programming Terminal units: Volts
Description : This parameter indicates the latest AC line voltage as
measured by the drive.
Parameter 117 – Field Current Reference [Fld Current Ref]
Internal units : 4096 = 1000h = 1 pu = 100% rated motor field current
Programming Terminal units: Amps
Description : This parameter indicates the latest field current
reference as calculated by the drive. This value is derived from the
Flux Command by use of the flux linearization table (Parm 677 –
685).