Rockwell Automation FlexPak 3000 Power Module Version 4.2 - Manual (Page 121)

APPENDIX B
49’1340 e FlexPak 3000 B-17
FIELD LOSS THRESHOLD (P.512)
Only available if the Field Current Regulator kit is installed.
The value that is compared to FIELD FEEDBACK (P.589) to check for field loss. FIELD LOSS
THRESHOLD is set as a percentage of MOTOR HOT FLD AMPS (P.510). It is usually set to 85% of the
motor nameplate value of field weaken.
Parameter Range: Armature voltage regulators: 50 to 100% of MOTOR HOT FLD AMPS
Speed regulators: 0 to 100% of MOTOR HOT FLD AMPS
Default Setting: 60% of MOTOR HOT FLD AMPS
Parameter Type: Configurable
OIM Menu Path(s): Field - Field Current Regulator - Field Loop Configure
Refer also to Parameters: FIELD ECONOMY ACTIVE (P.599), FIELD ECONOMY REF (P.511),
FIELD FEEDBACK (P.589), MOTOR HOT FLD AMPS (P.510)
WARNING
The incorrect setting of this parameter can cause a motor overvoltage condition.
Set MOTOR HOT FLD AMPS to the motor's nameplate value. Make sure FIELD ECONOMY REF
and/or FIELD REF REGISTER (P.513) is above FIELD LOSS THRESHOLD (P.512).
Failure to observe this precaution can result in bodily injury and damage to the equipment.
FIELD PI LEAD FREQ (P.515)
Only available if the Field Current Regulator is installed.
Lead frequency for the field current PI block.
Parameter Range: 0.01 to 56.50 rad/s
Default Setting: 0.30 rad/s
Parameter Type: Tuneable
OIM Menu Path(s): Field - Field Current Regulator - Field Loop Tuning
Refer also to Parameters: FIELD PI PROP GAIN (P.514)
0°
FIELD PI LEAD FREQ
FIELD PI PROP GAIN
LO HI
PI
KP WLD
(FIELD DELTA HI LIM)
PHASE
FIRING
LOGIC
FIELD
(FIELD DELTA)
FIELD
REGULATOR
SUPPLY
P.587
P.588
P.515
P.514
TO FIELD CURRENT REGULATOR
BLOCK DIAGRAM
FIELD REFERENCE
+
-
FIELD FEEDBACK
FROM FIELD CURRENT REGULATOR BLOCK DIAGRAM
FIELD PI PROP GAIN (P.514)
Only available if the Field Current Regulator kit is installed.
Proportional gain setting for the field current PI block. See FIELD PI LEAD FREQ for block diagram.
Parameter Range: 0.01 to 128.00
Default Setting: 0.80
Parameter Type: Tuneable
OIM Menu Path(s): Field - Field Current Regulator - Field Loop Tuning
Refer also to Parameters: FIELD PI LEAD FREQ (P.515)