ABB ACS850 - Page 169

Parameters 169
20.03 Pos speed ena Selects the source of the positive speed reference enable
command.
1 = Positive speed reference is enabled.
0 = Positive speed reference is interpreted as zero speed
reference (In the figure below 03.03 SpeedRef unramp is set
to zero after the positive speed enable signal has cleared).
Actions in different control modes:
Speed control: Speed reference is set to zero and the motor is
stopped along the currently active deceleration ramp.
Torque control: Torque limit is set to zero and the rush
controller stops the motor.
Example: The motor is rotating in the forward direction. To
stop the motor, the positive speed enable signal is
deactivated by a hardware limit switch (e.g. via digital input).
If the positive speed enable signal remains deactivated and
the negative speed enable signal is active, only reverse
rotation of the motor is allowed.
Const Bit pointer setting (see Terms and abbreviations on page
102).
-
Pointer
20.04 Neg speed ena Selects the source of the negative speed reference enable
command. See parameter 20.03 Pos speed ena.
Const Bit pointer setting (see Terms and abbreviations on page
102).
-
Pointer
20.05 Maximum current Defines the maximum allowed motor current.
0.00 … 30000.00 A Maximum motor current. 100 = 1 A
20.06 Torq lim sel Defines a source that selects between the two sets of torque
limits defined by parameters 20.07…20.10.
0 = The torque limits defined by parameters 20.07 Maximum
torque1 and 20.08 Minimum torque1 are in force.
1 = The torque limits defined by parameters 20.09 Maximum
torque2 and 20.10 Minimum torque2 are in force.
Const Bit pointer setting (see Terms and abbreviations on page
102).
-
Pointer
20.07 Maximum torque1 Defines maximum torque limit 1 for the drive (in percent of the
motor nominal torque). See parameter 20.06 Torq lim sel.
0.0 … 1600.0% Maximum torque 1. 10 = 1%
No. Name/Value Description FbEq
20.03 Pos speed ena
20.04 Neg speed ena
03.03 SpeedRef unramp
01.08 Encoder1 speed