Group 4: Current Control - ABB DCS 500B Description

Group 4: CURRENT CONTROL

[TORQ_REF]
Input of CURRENT CONTROL-function block.
401 FB_I: C4
[CURR_REF]
Input of CURRENT CONTROL-function block.
Either current or torque reference is used depending on value of REF_TYPE_SEL-
parameter.
402 FB_I: C4
[CURR_STEP]
Input of CURRENT CONTROL-function block.
Additional current/torque reference added to the main reference.
403 FB_I: C4
[BLOCK]
Input of CURRENT CONTROL-function block.
A block-command for the current controller. The controller will try to decrease the
armature current to zero as fast as possible.
404 FB_I: C4
REF_TYPE_SEL
Parameter of CURRENT CONTROL-function block.
Selector for the main reference:
0 = TORQ_REF
1 = CURR_REF
405 FB_P: E2
ARM_CURR_REF_SLOPE
Parameter of CURRENT CONTROL-function block.
The maximum slope of the current reference (di/dt). Given as largest amount for
reference change during 3.3 ms (2.7 ms in 60Hz supply).
406 FB_P: I2
ARM_CURR_PI_KP
Parameter of CURRENT CONTROL-function block.
Proportional gain for PI-type current controller:
output = ARM_CURR_PI_KP * error / 256.
407 FB_P: I2
ARM_CURR_PI_KI
Parameter of CURRENT CONTROL-function block.
Integration gain for PI-type current controller:
Time constant =
408 FB_P: I2
ARM_CONT_CURR_LIM
Parameter of CURRENT CONTROL-function block.
Current level where current changes from discontinous to continous. Value is set by
the auto-tuning or manual tuning function of the current controller.
409 FB_P: I2
SC: TORQ HL: 19999
SC:MCURR HL: 19999
SC: - HL: 19999
SC: BI HL: 19999
SC: - HL: 1
SC:MCURR HL: 4100
SC: - HL: 2977
16384 * 3,33 / ARM_CURR_PI_KI (50 Hz supply)
16384 * 2,77 / ARM_CURR_PI_KI (60 Hz supply).
SC: - HL: 31968
SC: CCURR HL: 4100
DCS500 Pin and Parameter list
LL: 0 D: 12402
LL: 0 D: 12526
LL: 0 D: 12527
LL: 0 D: 0
LL: 0 D: 0
LL: 0 D: 1366
LL: 3 D: 300
LL: 0 D: 3200
LL: 0 D: 2050
( S7/16 )
U: -
( S7/16 )
U: -
( S7/16 )
U: -
( S7/16 )
U: -
( S7/16 )
U: -
( S7/16 )
U: A
( S7/16 )
U: -
( S7/16 )
U: -
( S7/16 )
U: A
A 15