Group 12: Constant Speeds - ABB ACS550-01 User Manual
Drive low voltage ac drives
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ACS550 User's Manual
Group 12: Constant Speeds
This group defines a set of constant speeds. In general:
• You can program up to 7 constant speeds, ranging from 0
rpm.
• Values must be positive (No negative speed values for constant speeds).
• Constant speed selections are ignored if:
– the torque control is active, or
– the process PID reference is followed, or
– the drive is in local control mode, or
– PFC (Pump-Fan Control) is active.
Code Description
1201 CONST SPEED SEL
Defines the digital inputs used to select Constant Speeds.
0 =
– Disables the constant speed function.
NOT SEL
1 =
1 – Selects Constant Speed 1 with digital input
DI
• Digital input activated = Constant Speed 1 activated.
2...6 =
2...
6 – Selects Constant Speed 1 with digital input
DI
DI
7 =
1,2 – Selects one of three Constant Speeds (1...3) using
DI
• Uses two digital inputs, as defined below (0 =
1
2
DI
DI
0
0
No constant speed
1
0
Constant speed 1 (1202)
0
1
Constant speed 2 (1203)
1
1
Constant speed 3 (1204)
• Can be set up as a so-called fault speed, which is activated if the control signal is lost. Refer to parameter 3001
<
function and parameter 3002
AI
MIN
8 =
2,3 – Selects one of three Constant Speeds (1...3) using
DI
• See above (
1,2) for code.
DI
9 =
3,4 – Selects one of three Constant Speeds (1...3) using
DI
• See above (
1,2) for code.
DI
10 =
4,5 – Selects one of three Constant Speeds (1...3) using
DI
• See above (
1,2) for code.
DI
11 =
5,6 – Selects one of three Constant Speeds (1...3) using
DI
• See above (
1,2) for code.
DI
12 =
1,2,3 – Selects one of seven Constant Speeds (1...7) using
DI
• Uses three digital inputs, as defined below (0 =
DI1
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
13 =
3,4,5 – Selects one of seven Constant Speeds (1...7) using
DI
• See above (
1,2,3) for code.
DI
14 =
4,5,6 – Selects one of seven Constant Speeds (1...7) using
DI
• See above (
1,2,3) for code.
DI
-1 =
1(
) – Selects Constant Speed 1 with digital input
DI
INV
• Inverse operation: Digital input de-activated = Constant Speed 1 activated.
-2...- 6 =
2(
)...
DI
INV
DI
Function
PANEL COMM ERR
Function
No constant 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)
6(
) – Selects Constant Speed 1 with digital input. See above.
INV
1.
DI
2...
6. See above.
DI
DI
1 and
2.
DI
DI
de-activated, 1 =
activated):
DI
DI
.
2 and
3.
DI
DI
3 and
4.
DI
DI
4 and
5.
DI
DI
5 and
6.
DI
DI
1,
2 and
DI
DI
de-activated, 1 =
activated):
DI
DI
3,
4 and
DI
DI
5,
6 and
DI
DI
1.
DI
500 Hz or 0
...
...
3.
DI
5.
DI
7.
DI
61
30000
Start-Up
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