Unit Setup For Displayed Static Pressure; Operation Mode Setup; Impulse Line Connection Orientation Setup; Output Status Display/Setup When A Cpu Failure - YOKOGAWA Dpharp vigilantplant EJA110A User Manual

(8) Unit Setup for Displayed Static Pressure

(D31: STAT.P.UNIT)
Follow the procedure below to change the static
pressure units.
Changing this parameter changes the unit for the A30:
STATIC PRESS (static pressure) display.

(9) Operation Mode Setup

(D40: REV OUTPUT)
This parameter allows the direction of the 4 to 20 mA
output to be reversed with respect to input. Follow the
procedure below to make this change.
• Example: Change 4 to 20 mA output to 20 to
4 mA output.
SET
D40:REV OUTPUT
NORMAL
< NORMAL >
< REVERSE>
ESC
(10) Impulse Line Connection Orientation
Setup (D45: H/L SWAP)
This parameter allows the impulse line connections to
be reversed at the transmitter. The parameter is not
applicable for capsule code V. Follow the figure below
to make this change.
• Example: Change the impulse line connection
from high pressure on right to high
pressure on left.
SET
D45:H/L SWAP
NORMAL
< NORMAL >
< REVERSE>
ESC
(11) Output Status Display/Setup when a CPU
Failure (D52: BURN OUT)
This parameter displays the status of 4 to 20 mA DC
output if a CPU failure occurs. In case of a failure,
communication is disabled.
Setting of HIGH or LOW is enabled. This is done with
the pin (CN4) on the CPU assembly. See Chapter 3 for
details.
Standard specifications
The parameter is set to HIGH. If a failure, the transmit-
ter outputs the signal of 110% or higher. The parameter
D53: ERROR OUT is set to HIGH from the factory.
Use the or
to select REVERSE.
Press the key twice to
enter the setting.
Use the or
to select REVERSE.
Press the key twice to
enter the setting.
Optional code/C1
The parameter is set to LOW. If a failure, output which
is –5% or lower is generated. The parameter D53:
ERROR OUT is set to LOW from the factory.
• Example: Standard specifications
D52: BURN
HIGH
• Example: Optional code/C1
D52: BURN
LOW
(12) Output Status Setup when a Hardware
key
Error Occurs (D53: ERROR OUT)
This parameter allows the setting of the output status
when a hardware error occurs. The following three
selections are available.
F0825.EPS
(a) HOLD; Outputs the last value held before the error
occurred.
(b) HIGH; Outputs an output of 110% when an error
has occurred.
(c) LOW; Outputs an output of –5% when an error has
occurred.
Note: A hardware error means CAP MODULE FAULT of Er.01 or
AMP MODULE FAULT of Er. 02 which are shown in 8.5.2
"Errors and Countermeasures.")
• Example: Set the output status to LOW when
SET
key D53:ERROR OUT
HIGH
< HIGH>
< LOW>
< HOLD>
F0826.EPS
8-12
8. BRAIN TERMINAL BT200 OPERATION
pin (CN4) position: H
OUT
pin (CN4) position: L
OUT
a hardware error occurs.
Use the
to select "LOW."
Press the
ESC
enter the setting.
F0827.EPS
or key
key twice to
F0828.EPS
IM 01C21B01-01E