ABB DCS 500B Description page 144

F1_U_LIM_N
Parameter of MOTOR_1_FIELD-function block.
Negative output voltage limitation for current controller in field excitation unit. Minimum
output voltage = -4096.
1311 FB_P: I2 SC: VOLT
F1_U_LIM_P
Parameter of MOTOR_1_FIELD-function block.
Positive output voltage limitation for current controller in field excitation unit. Maximum
output voltage = 4096.
1312 FB_P: I2 SC: VOLT
F1_RED.SEL
Parameter of MOTOR_1_FIELD -function block.
Enables field heating function for the motor when RUN-command is not active.
The function is activated 10 s after the RUN-command has been removed.
0 = DISABLE
1 = ENABLE.
1313 FB_P: E2 SC: -
F1_RED.REF
Parameter of MOTOR_1_FIELD-function block.
Field current reference when field heating function is active or when the motor is at
standstill. Default is 30% of nominal value.
1314 FB_P: I2 SC: FCURR
OPTI.REF_GAIN
Parameter of MOTOR_1_FIELD_OPTIONS-function block.
Used in OPTI-TORQUE function. Gain factor used to multiply torque reference when field
current reference, F1_CURR_REF (11301), is calculated. Field current reference is
calculated from torque reference:
Field current reference = OPTI.REF_GAIN * torque reference / 98.
1315 FB_P: I2 SC: 1
OPTI.REF_MIN_L
Parameter of MOTOR_1_FIELD_OPTIONS-function block.
Used in OPTI-TORQUE function. Minimum field level when OPTI_TORQUE function is
selected with FIELD_MODE (1001) parameter.
Default value is 15% of nominal field current. See next parameter.
1316 FB_P: I2 SC: FCURR
OPTI.REF_MIN_TD
Parameter of MOTOR_1_FIELD_OPTIONS-function block.
Used in OPTI-TORQUE function. Time delay for minimum field indication. The field
reference can't be below the limit OPTI.REF_MIN_L longer than this time when
OPTI_TORQUE function is active or when field reversal is done
1317 FB_P: I2 SC: 1
REV.REV_HYST
Parameter of MOTOR_1_FIELD_OPTIONS-function block.
Used in field reversal function. Hysteresis for actual field current comparator. During field
reversal output of the comparator will produce the flag FIELD1_REV_ACK located in
FEX_STATUS (11203)). Hysteresis is needed to avoid possible noise and offset of the
field current signal to affect the FIELD1_REV_ACK.
1318 FB_P: I2 SC: FCURR
HL: 0 LL: -4096
HL: 4096 LL: 0
HL: 1 LL: 0
HL: 4095 LL: 0
HL: 10000 LL: 0
HL: 4096 LL: 0
HL: 20000 LL: 0
HL: 4095 LL: 0
DCS500 Pin and Parameter list
( S8/16 )
D: -4096 U: %
( S8/16 )
D: 4096 U: %
( S8/16 )
D: 0 U: -
( S8/16 )
D: 1228 U: A
( S8/16 )
D: 100 U: -
( S8/16 )
D: 614 U: A
( S8/16 )
D: 200 U: ms
( S8/16 )
D: 80 U: A
A 40