ABB C1900RC Operating Manual page 16

Circular chart recorder/controller
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...5 CONTROL OPERATION
...5.2 Operating Page Displays
100. 3
r50. 0
100. 3
dEG F
LOCAL
110. 5
Displayed only if enabled in
the
Set Up Operating Page,
CONTROL CONFIGURATION
LEVEL
rAtIO
1. 0 00
bIAS
100. 3
110. 3
No additional options
PrG 1
Profile Option
rAMP
tIME
Timer Option
12:00
14
Process Variable
Temperature Units
The units are set in the
selected.
rEMOtE
bALNCE
LOCAL
or
dUAL
or
CASCdE
Faceplate 2 only
The
used for
the Balance value , i.e.
Remote (or Cascade) Set Point Ratio
The remote (or cascade) set point input (in engineering units) is multiplied by the ratio
to obtain the control set point value, i.e.
Remote (or cascade) Set Point Value = Input x Ratio + Bias
Use the
increments
Remote (or Cascade) Set Point Bias
The bias value is added to the remote (cascade) set point value (see previous frame)
0. 0
Use the
The bias can be set to either a positive or negative value (in engineering units).
or
Continued on next page.
BASIC CONFIGURATION LEVEL.
Set Point Type Selection
The
displays show the difference between the
Balance
set point values (remote, dual or cascade) when switching
Second
from local to second set point, i.e.
Balance
= Second set point – Local set point.
If the difference is too great, press the
frame and adjust the Local set point to obtain an
Control Set Point
acceptable difference.
If remote set point tracking is enabled (
CONFIGURATION LEVEL
point when the remote set point is selected.
key (if programmed in the
ADVANCED CONFIGURATION LEVEL
/
set point selection, but transfer takes place without display of
Local
Second
LOCAL
and
keys to set the ratio required, between 0.010 and 9.999 in 0.001
and
keys to set the bias required.
Display is blank if '
key to return to the
Set Points Page, CONTROL
), the local set point tracks the remote set
rEMOtE
dUAL
CASCdE
NONE
' is
and
Local
) can also be

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