Yokogawa EJA220A - Manual (Page 41)

IM 01C21C01-01E 8-9
8. BRAIN TERMINAL BT200 OPERATION
(4) Output Signal Low Cut Mode Setup
(D10: LOW CUT, D11: LOW CUT MODE)
Low cut mode can be used to stabilize the output
signal near the zero point. The low cut point can be set
in a range from 0 to 20% of output. (Hysteresis:
±1%)
Select “ZERO” as the low cut mode.
(%)
50
20
0 50 (%)
Output
Input
᭹ Low cut mode “ZERO”
F0816.EPS
• Example: Change the low cut setting range
from 10% to 20%, and the low
cut mode from LINEAR to ZERO.
FEED NO OK
SET
D11:LOW CUT MODE
ZERO
Use the or key
to select “ZERO.”
Press the key twice to
enter the setting.
Press the (OK) key.
F0817.EPS
FEED NO OK
SET
D10:LOW CUT
20.0 %
ESC
SET
D11:LOW CUT MODE
LINEAR
< LINEAR >
< ZERO >
DATA DIAG PRNT ESC
PARAM
D10:LOW CUT
20.0 %
D11:LOW CUT MODE
ZERO
D20:DISP SELECT
NORMAL %
CLR ESC
SET
D10:LOW CUT
10.0 %
+ 20.0 Set 20.
Press the key twice to
enter the setting.
Press the (OK) key.
Next, the [D11: LOW CUT MODE]
setting panel is displayed.
(5) Change Output Limits
(D15:OUT LIMIT(L), D16:OUT LIMIT(H))
The range of normal output is preset at factory from
-5.0 to 110.0% unless otherwise specified, and the
output is limited with these upper and lower values.
This output range can be changed, for example, to
meet the requirements of NAMUR, etc. within the
settable range. Set the lower limit with D15:OUT
LIMIT(L) and upper limit with D16:OUT LIMIT(H).
Settable range : -5.0 to 110.0 (%)
Lower limit < Upper limit
(6) Integral Indicator Scale Setup
The following 5 displays are available for integral
indicators.
T0808.EPS
D20: DISP SELECT
and Display
NORMAL %
USER SET
USER & %
INP PRES
PRES & %
Indicates –5 to 110% range
depending on the Measurement
range (C21, C22).
Indicates values depending on the
Engineering range (D22, D23).
( Note 1 )
Units set using Engineering unit
(D21) are not indicated.
Indicates user set and % alternately
in 3 second intervals.
Indicates input pressure. ( Note 2 )
Indication limits –19999 to 19999.
Indicates input pressure and %
alternately in 3 second intervals.
A10:OUTPUT (%)
45.6 %
Description
and Related parameters
A11:ENGR.OUTPUT
20.0 M
A10:OUTPUT (%)
45.6 %
A11:ENGR. OUTPUT
20.0 M
A40:INPUT
456 kPa
A10:OUTPUT (%)
45.6 %
A40:INPUT
456 kPa
(Note 1) Scale range can be specified with range limit specifications up
to 5 digits (excluding any decimal point) for low or high range
limits within the range of –19999 to 19999.
The range with decimals is available to the third decimal place.
(Note 2) It indicates the value after zeroing.
See (a.) through (c.) for each setting procedure.