ABB ACS180 - Page 168

168 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 on page 53.
0000h
0000h...FFFFh 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.
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 parameter 22.55.
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 parameter 22.54.
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 parameter 22.57 .
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 parameter 22.56.
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 Speed control performance figures in chapter
Program features.
Disabled
Disabled Motor potentiometer is disabled and its value set to 0. 0
No. Name/Value Description Default
FbEq 16
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
ACS180 FW.book Page 168 Tuesday, March 9, 2021 2:25 PM