ABB ACS850 - Constant Speeds

186 Parameters
25.04 Crit speed2 lo Defines the low limit for critical speed range 2.
Note: This value must be less than or equal to the value of
25.05 Crit speed2 hi.
-30000 … 30000
rpm
Low limit for critical speed 2. 1 = 1 rpm
25.05 Crit speed2 hi Defines the high limit for critical speed range 2.
Note: This value must be greater than or equal to the value of
25.04 Crit speed2 lo.
-30000 … 30000
rpm
High limit for critical speed 2. 1 = 1 rpm
25.06 Crit speed3 lo Defines the low limit for critical speed range 3.
Note: This value must be less than or equal to the value of
25.07 Crit speed3 hi.
-30000 … 30000
rpm
Low limit for critical speed 3. 1 = 1 rpm
25.07 Crit speed3 hi Defines the high limit for critical speed range 3.
Note: This value must be greater than or equal to the value of
25.06 Crit speed3 lo.
-30000 … 30000
rpm
High limit for critical speed 3. 1 = 1 rpm
26
26 Constant speeds
Constant speed selection and values. An active constant
speed overrides the drive speed reference. See section
Constant speeds on page 61.
26.01 Const speed func Determines how constant speeds are selected, and whether
the rotation direction signal is considered or not when
applying a constant speed.
No. Name/Value Description FbEq
Bit Name Information
0 Const speed
mode
1 = Packed: 7 constant speeds are selectable using the three sources
defined by parameters 26.02, 26.03 and 26.04.
0 = Separate: Constant speeds 1, 2 and 3 are separately activated by
the sources defined by parameters 26.02, 26.03 and 26.04 respectively.
In case of conflict, the constant speed with the smaller number takes
priority.
1 Dir ena 1 = Start dir: To determine running direction for a constant speed, the
sign of the constant speed setting (parameters 26.06…26.12) is
multiplied by the direction signal (forward: +1, reverse: -1). For example,
if the direction signal is reverse and the active constant speed is
negative, the drive will run in the forward direction.
0 = Accord Par: The running direction for the constant speed is
determined by the sign of the constant speed setting (parameters
26.06…26.12).