ABB ACS550-01 User Manual page 126

126
Code Description
4022 SLEEP SELECTION
Defines the control for the PID sleep function.
0 = – Disables the PID sleep control function.
NOT SEL
1 = 1 – Defines digital input
DI
• Activating the digital input activates the sleep function.
• De-activating the digital input restores PID control.
2...6 = 2... 6 – Defines digital input
DI DI
• See 1 above.
DI
7 = – Defines the output rpm/frequency, process reference, and process actual value as the control for the
INTERNAL
PID sleep function. Refer to parameters 4025
-1 = 1( ) – Defines an inverted digital input
DI INV
• De-activating the digital input activates the sleep function.
• Activating the digital input restores PID control.
-2...-6 = 2( )...
DI INV DI
• See 1( ) above.
DI INV
4023 PID SLEEP LEVEL
Sets the motor speed / frequency that enables the PID sleep
function – a motor speed / frequency below this level, for at least
the time period 4024
function (stopping the drive).
• Requires 4022 = 7
• See figure: A = PID output level; B = PID process feedback.
4024 PID SLEEP DELAY
Sets the time delay for the PID sleep function – a motor speed /
frequency below 4023
enables the PID sleep function (stopping the drive).
• See 4023
PID SLEEP LEVEL
4025 WAKE-UP DEVIATION
Defines the wake-up deviation – a deviation from the setpoint
greater than this value, for at least the time period 4026
, re-starts the PID controller.
DELAY
• Parameters 4006 and 4007 define the units and scale.
• Parameter 4005 = 0,
Wake-up level = Setpoint - Wake-up deviation.
• Parameter 4005 = 1,
Wake-up level = Setpoint + Wake-up deviation.
• Wake-up level can be above or below setpoint.
See figures:
• C = Wake-up level when parameter 4005 = 1
• D = Wake-up level when parameter 4005 = 0
• E = Feedback is above wake-up level and lasts longer than 4026
- – PID function wakes up.
WAKE UP DELAY
• F = Feedback is below wake-up level and lasts longer than 4026
- – PID function wakes up.
WAKE UP DELAY
4026 WAKE-UP DELAY
Defines the wake-up delay – a deviation from the setpoint greater
than 4025 -
WAKE UP DEVIATION
the PID controller.
Start-Up
1 as the control for the PID sleep function.
DI
2... 6 as the control for the PID sleep function.
DI DI
6( ) – Defines an inverted digital input
INV
enables the PID sleep
PID SLEEP DELAY
.
INTERNAL
for at least this time period
PID SLEEP LEVEL
above.
, for at least this time period, re-starts
- and 4023
WAKE UP DEV PID SLEEP LEVEL
1 as the control for the PID sleep function.
DI
2... 6 as the control for the PID sleep function.
DI DI
P 4023
Setpoint
-
WAKE UP
ACS550 User's Manual
.
t < P 4024
t > P 4024
B
P 4025
Stop
P 4025
Setpoint
P 4025
E
P 4025
Setpoint
P 4025
A
t
P 4026
t
Start
C
}
4005 = 1
}
4005 = 0
D
t
C
P 4026
D
t
P 4026
F