ABB DriveIT ACH550-01 User Manual page 196

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...500 Hz
or 0...30000 rpm.
• Values must be positive (No negative speed values for constant
speeds).
• Constant speed selections are ignored if:
- the process PID reference is followed, or
- the drive is in local control mode, or
- PFA (Pump and Fan Alternation) is active
Note! Parameter 1208
fault speed which may be activated if the control signal is lost.
Refer to parameter 3001
PANEL COMM ERROR
Code Description
1201 CONST SPEED SEL
Defines the digital inputs used to select Constant Speeds. See
general comments in the introduction.
0 =
NOT SEL
1 = 1 – Selects Constant Speed 1 with digital input
DI
• Digital input activated = Constant Speed 1 activated.
2...6 = 2...
DI
See above.
7 = 1,2 – Selects one of three Constant Speeds (1...3) using
DI
2.
DI
• Uses two digital inputs, as defined below (0 =
activated):
DI
1
DI
0
1
0
1
192
CONST SPEED
<
AI
.
– Disables the constant speed function.
6 – Selects Constant Speed 1 with digital input
DI
2 Function
DI
0 No constant speed
0 Constant speed 1 (1202)
1 Constant speed 2 (1203)
1 Constant speed 3 (1204)
ACH550 User's Manual
7 acts also as a so-called
and parameter 3002
MIN FUNCTION
Parameter listing and descriptions
Range
0...14, -1...-14
1.
DI
2...
DI
1 and
DI
de-activated, 1 =
DI
6.
DI