Control Page (Standard Control) - ABB COMMANDER 1911 Operating Manual

...5 CONTROL OPERATION

5.9.1 Control Page (Standard Control)

CONtrL
PAGE
CYCt
1. 0
HYSt
0
PrOP
___. _
INtGrL
OFF
Integral Off
MrESEt
Integral
On
___. _
ContrL
PAGE
dErIV
OFF
Derivative
Off
APPb
_. _
30
Page Header – Control Page
Cycle Time (only applicable for control using relay output)
300. 0
This setting can be ignored for analog control outputs.
1. 0
Set the required cycle time for time proportioning control, from 1.0 to 300.0 in
0.1 second increments (300 seconds = 5 minutes).
Time Proportioning
only
Control
Hysteresis (only applicable for control using relay output)
This setting can be ignored for analogue control outputs.
The hysteresis is operational above or below (depending on the control action,
direct or reverse) the set point and is only applicable for ON/OFF control – see
Fig. 5.14 on page 26.
Set the hysteresis value required for on/off control in engineering units
(between 0 and 10% of engineering range span).
Proportional Band
Set the proportional band value required, between 0.1 and 999.9% in 0.1%
increments.
OFF
7200
Integral Action Time
1
OFF
Set the required time between 1 and 7200 in 1 second increments (7200
seconds = 120 minutes). '
Manual Reset
100. 0
0. 0
Set the required proportional band offset on the lower display, between 0.0 and
100.0% of the engineering range span in 0.1% increments.
999. 9
Derivative Action Time
0. 1
OFF
Set the required time between 0.1 and 999.9 in 0.1 second increments (999.9
seconds = 16.67 minutes). '
Approach Band
3. 0
0. 1
Set the required value between 0.1 and 3.0 in 0.1 increments. (Set 1.0 initially).
' is selected above 7200 or below 1.
OFF
' is selected below 0.1.
OFF