ABB ACS880 Series, Firmware Manual

Page: 429 / 764

Def / Type
FbEq 16b / 32b Description Name / Range /
Selection No.
10 Digital input/output DIO1 ( 11.2 DIO delayed status , bit
0).
DIO1
11 Digital input/output DIO2 ( 11.2 DIO delayed status , bit
1).
DIO2
See Terms and abbreviations (page 169) . Other [bit]
0.0 / real32 Defines a deadband around the setpoint. Whenever
process feedback enters the deadband, a delay timer
starts. If the feedback remains within the deadband
longer than the delay (
40.40 Set 1 deadband delay ), the
PID controller output is frozen. Normal operation
resumes after the feedback value leaves the deadband.
40.39 Set 1
deadband range
40.40 Set 1 deadband delay
Setpoint
Feedback
PID controller
output
PID controller
output frozen
Time
Set 1 deadband
range 40.39
1 = 1 / 10 = 1 Deadband range. 0.0 ... 32767.0
0.0 s / real32 Delay for the deadband. See parameter 40.39 Set 1
deadband range .
Set 1 deadband
delay 40.40
1 = 1 s / 10 = 1 s Delay for deadband area. 0.0 ... 3600.0 s
Not selected / uint16 Selects the mode of the sleep function.
See also section
Process PID control (page 109) .
Set 1 sleep mode 40.41
0 Sleep function disabled. Not selected
1 The output of the PID controller is compared to the
value of
40.43 Set 1 sleep level .
If the PID controller output remains below the sleep
level longer than the sleep delay (
40.44 Set 1 sleep
delay ), the drive enters sleep mode.
Parameters 40.44 … 40.48 are in force.
Internal
2 The sleep function is activated by the source selected
by parameter
40.42 Set 1 sleep enable .
Parameters 40.44 … 40.46 and 40.48 are in force.
External
Not selected / uint32 Defines a source that is used to activate the PID sleep
function when parameter
40.41 Set 1 sleep mode is set
to External .
0 = Sleep function disabled
1 = Sleep function activated
Set 1 sleep enable 40.42
0 0 Not selected
1 1 Selected
Parameters 429