E5jK-T
E5jK-T
38
How to Use the Error Display
When
an error has occurred, the No.1 display alternately indicates error codes together with the current display item.
This section describes how to check error codes on the display
, and the actions that must be taken to remedy the problem.
Input
Error
Meaning Input
is in error
.
Action Check
the wiring of inputs, disconnections, and shorts, and check the input type and the input type
jumper
connector
.
Operation at Error For
control output functions, output the manipulated variable matched to
the setting of the “MV at PV
error” parameter (level 2 mode). Alarm output functions are activated when the upper limit is
exceeded.
Memory
Error
Meaning Internal
memory operation is in error
Action First,
turn the power OFF then back ON again. If the display remains the same, the E5
j
K-T Control
-
ler
must be repaired. If the display is restored to normal,
the probable cause may be external noise
affecting
the control system. Check for external noise.
Operation at Error Control
output functions turn OFF (2 mA max. at 4 to 20 mA output, and
output equivalent to 0% in
case
of other outputs). Alarm output functions turn OFF
.
A/D Converter Error
Meaning Internal
circuits are in error
.
Action First,
turn the power OFF then back ON again. If the display remains the same, the E5
j
K-T Control
-
ler
must be repaired. If the display is restored to normal,
the probable cause may be external noise
affecting
the control system. Check for external noise.
Operation at Error Control
output functions turn OFF (2 mA max. at 4 to 20 mA output, and
output equivalent to 0% in
case
of other outputs). Alarm output functions turn OFF
.
Calibration
Data Error
This
error is output only during temperature input and is displayed for two seconds when the power is
turned ON.
Meaning
Calibration data is in error
.
Action
Must repair
.
Operation at Error Both
control output functions and alarm
output functions are active. However
, note that the readout
accuracy
is not assured.
Display Range Over
Meaning Though
not an error
, this is displayed when
the process value exceeds the display range when the
control
range (setting range
±
10%) is larger than the display range (–1999 to 9999).
•
When less than “–1999”
•
When greater than “9999”
Operation
Control continues, allowing normal operation.
To Next Page
Loading...
Need help?
General
