ABB ACSM1 Manual page 243

66.03 PROF ACC WEAK SP
Defines a positioning speed value (for the profile generator), above which acceleration/deceleration is
slowed down. Because the drive power depends on the torque and angular velocity, this parameter
defines the power limit used in the position reference calculation.
ω
P = T × and T = J × d
T = torque
ω
= angular speed
J = Inertia
ω
d /dt = angular acceleration
In other words, when the angular velocity exceeds the defined speed value, the power is limited by
reducing the angular acceleration(/deceleration).
The unit depends on parameter
0...32768
66.04 POS WIN
Defines the absolute value for the positioning window supervision.
• When the difference between position reference and actual position is within the window defined by
this parameter, the positioning is completed. Then,
MAIN SW bit 19 are set to 1.
• When the value of position reference generator distance to target is within the window defined by
this parameter,
Parameter value must be smaller than the value set by parameter
The unit depends on parameter
0...32768
66.05 POS ENABLE
Selects the source for enabling the position reference generator and the calculation of the position
reference. The state of the enable signal is reflected by
1 = Enable / Continue position reference calculation.
0 = Disable. Position reference calculation is stopped. Generator output speed is decreased to zero
along the position deceleration ramp.
Bit pointer: Group, index and bit.
FW block: PROFILE GENERATOR
ω
/dt, where
60.05 POS UNIT
Acceleration/deceleration time breakpoint.
FW block: PROFILE GENERATOR
6.09 POS CTRL STATUS
60.05 POS UNIT
Absolute value for positioning window supervision.
FW block: PROFILE GENERATOR
(see above)
and 60.10 POS SPEED UNIT
(see above)
6.09 POS CTRL STATUS
bit 0 is set.
71.06 POS ERR
selection.
(see above)
6.09 POS CTRL
Parameters and firmware blocks
243
selections.
bit 1 and 2.13 FBA
LIM.
STATUS, bit 3.