ACS 160 User’s Manual
91
Figure 23 Sleep function operation.
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
REG
BYPASS
CTRL
), this parameter has no
significance.
1 =
INTERNAL
Process reference is a constant value set with parameter 4020
INTERNAL
SETPNT
.
2 =
EXTERNAL
Process reference is read from a source defined with parameter 1106
EXT
REF
2
SELECT
. The ACS 160 must
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
KEYPAD
REF
SEL
= 2 (
REF
2 (%)).
4020
INTERNAL SETPNT
Sets a constant process reference (%) for the PID controller. PID controller follows this reference if
parameter 4019
SET
POINT
SEL
is set to 1 (
INTERNAL
).
Code Description
PID input (Process actual value)
Time
Time
PID Output (Output frequency)
Wake-up level
SLEEP
LEVEL
parameter 4014
STOP
START
t
d
=
SLEEP
DELAY
, parameter 4013
t < t
d
t
d
WAKE
-
UP
DELAY
parameter 4017
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