Group 12: Constant Speeds - ABB ACS140 User Manual

Group 12: Constant Speeds

The ACS140 has 7 programmable constant speeds, ranging from 0 to
300 Hz. Negative speed values cannot be given for constant speeds.
Constant speed selections are ignored if the process PID reference is
followed (see PID Control Macro).
Note! Parameter 1208
which may be activated if the control signal is lost. Refer to parameter 3001
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AI MIN FUNCTION
Code Description
1201 CONST SPEED SEL
This parameter defines which digital inputs are used to select Constant Speeds.
0 = NOT SEL
Constant speed function disabled.
1...5 = DI1...DI5
Constant Speed 1 is selected with digital inputs DI1-DI5. Digital input activated
= Constant Speed 1 activated.
6 = DI1,2
Three Constant Speeds (1 ... 3) are selected with two digital inputs.
Constant Speed selection with digital inputs DI1,2.
Table 2
Constant Speed selection with digital inputs DI1,2.
7 = DI3,4
Three Constant Speeds (1 ... 3) are selected with two digital inputs as in DI1,2.
8 = DI4,5
Three Constant Speeds (1 ... 3) are selected with two digital inputs as in DI1,2.
9 = DI1,2,3
Seven Constant Speeds (1 ... 7) are selected with three digital inputs.
Table 3
Constant Speed selection with digital inputs DI1,2,3.
DI1
0 = DI deactivated, 1 = DI activated
10 = DI3,4,5
Seven Constant Speeds (1 ... 7) are selected with three digital inputs as in
DI1,2,3.
1202 CONST SPEED 1... CONST SPEED 7
-1208 Constant speeds 1-7.
CONST SPEED
and parameter 3002
DI1 DI2
0 0
1 0
0 1
1 1
0 = DI deactivated, 1 = DI activated
DI2 DI3
0 0 0
1 0 0
0 1 0
1 1 0
0 0 1
1 0 1
0 1 1
1 1 1
ac.maher.co.ir
7 acts also as a so-called fault speed
.
PANEL LOSS
Function
No constant speed
Constant speed 1 (1202)
Constant speed 2 (1203)
Constant speed 3 (1204)
Function
No const. speed
Constant speed 1 (1202)
Constant speed 2 (1203)
Constant speed 3 (1204)
Constant speed 4 (1205)
Constant speed 5 (1206)
Constant speed 6 (1207)
Constant speed 7 (1208)