ABB ACS880-104

254 Parameters
22.51 Critical speed
function
Enables/disables the critical speeds function. Also
determines whether the specified ranges are effective in both
rotating directions or not.
See also section Critical speeds/frequencies (page 80).
0000b
0000b…0011b Critical speeds configuration word. 1 = 1
22.52 Critical speed 1 low Defines the low limit for critical speed range 1.
Note: This value must be less than or equal to the value of
22.53 Critical speed 1 high.
0.00 rpm
-30000.00 …
30000.00 rpm
Low limit for critical speed 1. See par.
46.01
22.53 Critical speed 1
high
Defines the high limit for critical speed range 1.
Note: This value must be greater than or equal to the value of
22.52 Critical speed 1 low.
0.00 rpm
-30000.00 …
30000.00 rpm
High limit for critical speed 1. See par.
46.01
22.54 Critical speed 2 low Defines the low limit for critical speed range 2.
Note: This value must be less than or equal to the value of
22.55 Critical speed 2 high.
0.00 rpm
-30000.00 …
30000.00 rpm
Low limit for critical speed 2. See par.
46.01
22.55 Critical speed 2
high
Defines the high limit for critical speed range 2.
Note: This value must be greater than or equal to the value of
22.54 Critical speed 2 low.
0.00 rpm
-30000.00 …
30000.00 rpm
High limit for critical speed 2. See par.
46.01
22.56 Critical speed 3 low Defines the low limit for critical speed range 3.
Note: This value must be less than or equal to the value of
22.57 Critical speed 3 high.
0.00 rpm
-30000.00 …
30000.00 rpm
Low limit for critical speed 3. See par.
46.01
22.57 Critical speed 3
high
Defines the high limit for critical speed range 3.
Note: This value must be greater than or equal to the value of
22.56 Critical speed 3 low.
0.00 rpm
-30000.00 …
30000.00 rpm
High limit for critical speed 3. See par.
46.01
22.71 Motor
potentiometer
function
Activates and selects the mode of the motor potentiometer.
See section Motor potentiometer (page 106
).
Disabled
Disabled Motor potentiometer is disabled and its value set to 0. 0
No. Name/Value Description Def/FbEq16
Bit Name Information
0 Enable 1 = Enable: Critical speeds enabled.
0 = Disable: Critical speeds disabled.
1 Sign mode 1 = Signed: The signs of parameters 22.52…22.57 are taken into
account.
0 = Absolute: Parameters 22.52…22.57 are handled as absolute values.
Each range is effective in both directions of rotation.
2…15 Reserved