Operation; Preparation For Starting Operation - YOKOGAWA DPharp EJA110A User Manual

6.

Operation

NOTE
For F Fieldbus and PROFIBUS PA
OUNDATION
communication types and for the transmitter operating
confi rmation and zeroing by any communication
method, refer to manuals in the attached CD-ROM for
further information.
6.1 Preparation for Starting
Operation
Confi rming that Transmitter is Operating
Properly
On the integral indicator
• If the wiring system is faulty, the display stays blank.
• If the transmitter is faulty, an error code will appear on
the display according to the nature of the error.
Self-diagnostic error on the integral indicator
(Faulty transmitter)
NOTE
If any of the error indications above appears on the
display of the integral indicator, refer to Chapter 7 for
corrective action.
Verify and Change Transmitter
Parameter Setting and Values
The following parameters are the minimum settings
required for operation.
• Measuring range
• Output/integral indicator mode
• Operation mode
Output Status Setting at CPU Failure
Set the burn-out direction as shown in the fi gures below.
The direction is set to the H side for delivery unless option
code /C1 is specifi ed in the order. For option code /F1, the
output signal for down-scale is -2.5%, 3.6 mA DC or less.
● BRAIN and HART except option code /F1
CPU assembly
Setting Pin (CN4)
Position
H L
H L
Figure 6.1
● HART with option code /F1
F0601.ai
Burnout Direction
Switch Position
Burn-out Direction
Write Protection
Switch Position
Write Protection
Figure 6.2
<6. Operation>
Setting pin (CN4)
Burn-Out
Direction
HIGH
LOW
Burn-out Direction Setting Pin
CPU assembly
Burn-out direction switch
Slide switch
L
Y
Write protection switch
Burn-out direction switch
L
L H
Y
Y N
HIGH
Hardware write protection switch
L H L
Y N
Y
NO
Burn-out Direction Slide Switch
26
Output at
Burn-Out
110% or higher
-5% or lower
F0602.ai
H
N
H
N
LOW
H
N
YES
F0603.ai
IM 01C22A01-01E