ABB ACS 400 User Manual page 107

Code Description
4013 PID SLEEP DELAY
Time delay for the sleep function, see Figure 55. If the ACS 400 output frequency is below a set level
(parameter 4014
Alarm 28 is displayed when PID sleep is active.
4014 PID SLEEP LEVEL
Level for activation of sleep function, see Figure 55. When the ACS 400 output frequency falls below the
sleep level, the sleep delay counter is started. When the ACS 400 output frequency rises above the sleep
level, the sleep delay counter is reset.
4015 WAKE-UP LEVEL
Level for deactivation of sleep function. This parameter sets a process actual value limit for the sleep
function (see Figure 55). The limit floats with the process reference.
The limit is calculated as follows:
When sleep function is active, normal operation is resumed when the process actual value goes below this
limit, and stays below the limit for at least time period set by parameter 4017
Note! Wake-up level comparison is also inverted when error value is inverted using parameter 4005
.
VALUE INV
4016 PID PARAM SET
PID parameter set selection. When set 1 is selected, parameters 4001-4012 and 4019-4020 are used.
When set 2 is selected, parameters 4101-4112 and 4119-4120 are used.
1...5 = DI1...DI5
PID parameter set is selected through a digital input (DI1...DI5). Parameter set 1 is used when the digital
input is not active. Parameter set 2 is used when the digital input is active.
6 = 1
SET
PID parameter set 1 is active.
7 = 2
SET
PID parameter set 2 is active.
4017 WAKE-UP DELAY
Delay for deactivation of PID sleep function. Refer to parameter 4015
4018 SLEEP SELECTION
PID sleep function control.
0 =
INTERNAL
When
INTERNAL
process actual value. Refer to parameters 4015
1...5 = DI1...DI5
Sleep state is activated and deactivated using a digital input.
4019 SET POINT SEL
Set point selection. Defines the reference signal source for the PID controller.
Note! When PID regulator is by-passed (parameter 8121
significance.
1 =
INTERNAL
Process reference is a constant value set with parameter 4020
2 =
EXTERNAL
Process reference is read from a source defined with parameter 1106
be in remote mode (REM is shown on control panel display).*
* Process reference to PID controller can also be given from the control panel in local mode (LOC is shown
on control panel display) if the panel reference is given as percentage, i.e. value of parameter 1101
= 2 (
REF SEL REF
4020 INTERNAL SETPNT
Sets a constant process reference (%) for the PID controller. PID controller follows this reference if
parameter 4019
ACS 400 User's Manual
) longer than
SLEEP LEVEL
limit = process reference * 4015
is selected, the sleep state is controlled by the output frequency, process reference and
2 (%)).
is set to 1 (
SET POINT SEL
, ACS 400 is stopped.
PID SLEEP DELAY
-
WAKE
- and 4014
WAKE UP LEVEL
REG BYPASS CTRL
INTERNAL SETPNT
).
INTERNAL
/ 100
UP LEVEL
-
WAKE UP DELAY
- and Figure 55.
WAKE UP LEVEL
PID SLEEP LEVEL
), this parameter has no
.
2 . The ACS 400 must
EXT REF SELECT
.
ERROR
.
KEYPAD
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