Omron K3HB - Page 129

Troubleshooting
Section 7 Troubleshooting
7-2
7.1 Error displays
*1. The parameters already set are returned to the factory settings.
If the problem still persists after performing initialization, repair is necessary.
*2. If there is an error in input A only, or if there is an error in both inputs A and B, "a.
err" is displayed, and
if there is an error in input B only, "b.
err" is displayed.
PV
display
SV
display
Description of error Countermeasure
unit err An unexpected Unit was detected. The mounting position depends on the
Unit model.
Check the Unit's model number and
mount it in the correct position.
unit chg Displayed the first time the power is
turned ON after mounting a new Unit
or changing the position of a Unit.
Press the
L
[LEVEL] key for at least 3
s to register the new Unit configuration.
disp
*1
err Display error Repair is necessary.
Consult your OMRON representative.
sys err Internal memory error Repair is necessary.
Consult your OMRON representative.
eep err Error in non-volatile memory Press the L[LEVEL] key in this state
for at least 3 s to return to the factory
settings.
If the problem still persists, repair is
necessary. Contact the point of
purchase or your OMRON
representative.
a.err
or
b.err
*2
Normal
operation
In the K3HB-S factory settings, the
input type is set to 4 to 20 mA
. When
the power is turned ON for the first
after the Unit is purchased, the input is
0
mA
if nothing is connected to the
current input terminal, so this error will
be displayed.
In the initial setting level, set the input
type and other settings to suit the
application.
Input error Quickly return the voltage/current
input to within the possible
measurement range.
The possible measurement ranges for
each input type are shown below.
0 to 20 MA range:-2 to 22
m
A
4 to 20 MA range: 2 to 22 m
A
0 to 5 V range: -0.5 to 5.5 V
1 to 5 V range: 0.5 to 5.5 V
±5 V range: -5.5 to 5.5 V
±10 V range: -11 to 11 V
Flashing
on
99999
or
-19999
Normal
operation
The input value is out of range or the
measurement value after scaling is
either greater than 99,999 or less than
-19,999.
Quickly return the input to within the
displayable range.
The scaling value may be
inappropriate. Review the scaling
value in the initial setting level.