ABB DriveIT ACH550-UH - Page 120

120 ACH550-UH User’s Manual
Start-Up
4021 ACT2 MAXIMUM -1000…1000% 1% 100%
Sets the maximum value for
ACT2.
• See 4018
ACT1 MINIMUM.
4022 SLEEP SELECTION -6…7 - 0
Defines the control for the PID sleep function.
0 =
NOT SEL– Disables the PID sleep control function.
1 =
DI1 – Defines digital input DI1 as the control for the PID sleep function.
• Activating the digital input activates the sleep function.
• De-activating the digital input restores PID control.
2…6 =
DI2…DI6 – Defines digital input DI2…DI6 as the control for the PID sleep function.
• See
DI1 above.
7 =
INTERNAL – Defines the output rpm/frequency, process reference, and process actual value as the control for the
PID sleep function. Refer to parameters 4025
WAKE-UP DEV and 4023 PID SLEEP LEVEL.
-1 =
DI1(INV) – Defines an inverted digital input DI1 as the control for the PID sleep function.
• De-activating the digital input activates the sleep function.
• Activating the digital input restores PID control.
-2…-6 =
DI2(INV)…DI6(INV) – Defines an inverted digital input DI2…DI6 as the control for the PID sleep function.
• See
DI1(INV) above.
4023 PID SLEEP LEVEL 0.0…120.0 Hz / 0.1 Hz / 0.0 Hz
0…7200 rpm 1 rpm
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
PID SLEEP DELAY enables the PID sleep function (stopping the drive).
• Requires 4022 = 7
INTERNAL.
• See figure: A = PID output level; B = PID process feedback.
4024 PID SLEEP DELAY 0.0…3600.0 s 0.1 s 60.0 s
Sets the time delay for the PID sleep function – a motor speed / frequency below 4023
PID SLEEP LEVEL for at least
this time period enables the PID sleep function (stopping the drive).
• See 4023 PID SLEEP LEVEL above.
Group 40: Process PID Set 1
Code Description Range Resolution Default S
Start
t < P 4024
t
t > P 4024
t
Stop
P 4023
P 4025
P 4026
Setpoint
A
B
P 4025
Setpoint
P 4025
C
D
t
}
}
4005 = 1
4005 = 0