Error Displays - Omron E5ZN Series Manual

Error Displays

If an error occurs, an error message will be displayed on the E5ZN-SDL Setting Display Unit.
Use the error message to check the type of error and correct the error accordingly.
PV display Error
Input error
Display Range
Over
Memory Error
Current Value
Exceeded
Disabled Status This error is displayed when one of the
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Meaning
The input value has exceeded the control
range∗.
∗Control Range
Resistance thermometer or thermocouple
input:
SP lower limit −20°C to SP upper limit
20°C
(SP lower limit −40°F to SP upper limit
40°F)
ES1A input:
Same as input indication range
Analog input:
−5% to 105% of scaling range
This message does not indicate an error. It is
displayed if the PV exceeds the display range
and the control range is larger than the
display range (−1999 (−199.9) to 9999
(999.9)).
• Less than -1999 (−199.9):
• More than 9999 (999.9):
There is an error in the internal memory
operation for the E5ZN-SDL Setting Display
Unit.
This error is displayed when the heater
current value exceeds 55.0 A.
following errors has occurred in the
connection with the E5ZN.
• The connecting cable is disconnected.
• The power supply to the E5ZN-SDL has
been turned OFF while in Copy Mode.
• A memory error has occurred in the E5ZN.
The control output and alarm outputs will be
OFF for the E5ZN generating the error.
In the interest of product improvement, specifications are subject to change without notice.
Action
Check the wiring of inputs for
mistakes in wiring, disconnections,
short-circuits, and the input type. If
no abnormality is found in the
wiring and input type, turn the
power OFF then back ON again. If
the display remains the same, the
E5ZN must be repaired. If the
display is restored, then electrical
noise may be affecting the control
system. Check for electrical noise.
---
First, turn the power OFF then back
ON again. If the display remains the
same, the E5ZN must be replaced.
If the display is restored, then
electrical noise may be affecting
the control system. Check for
electrical noise.
---
---
Operation
After the error occurs, the
error is displayed, and control
outputs turn OFF.
Alarm outputs operate as if
the upper limit has been
exceeded.
This error message is
displayed when the PV or PV/
SP is displayed.
Control continues and
operation is normal. This
message is displayed when
the PV or PV/SP is displayed.
Key operations are not
possible.
Control continues and
operation is normal. This
error message is displayed
when the heater current value
monitor is displayed.
Controllers that do not show
this disabled status will
continue operation and will
operate normally. The
selected Controller and the
channel status will be
displayed.
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