Omron H7EC - Troubleshooting

Up/Down Counting Meter
K3NC
C-153
Counters
■
Troubleshooting
When an error occurs, error details will be displayed in the PV display. Take the appropriate countermeasures according to the error displayed.
Error display Error contents Comparative output Countermeasure
Output
status
BCD output Communications
output
Linear
output
m1.err
m1.errm1.err
m1.err
(M1.ERR)
m2.err
m2.errm2.err
m2.err
(M2.ERR)
Memory error OFF OFF (all outputs
in "H" status)
OFF OFF Reset the power. If the same error
occurs, repair is necessary.
m3.err
m3.errm3.err
m3.err
(M3.ERR) OFF OFF (all outputs
in "H" status)
OFF OFF Reset the power while holding
down the ESC Key, the Up Key, and
the RESET/TEACH Key. The set-
tings will be returned to their initial
values. Redo the settings. If the
same error occurs, repair is neces-
sary.
err-o
err-oerr-o
err-o
(ERR-O)
chg-o
chg-ochg-o
chg-o
(CHG-O)
Output error OFF OFF (all outputs
in "H" status)
OFF OFF
(minimum
value)
Reset the power. If the same error
occurs, repair is necessary. If nor-
mal operation is restored, it is pos-
sible that the original error was
caused by the influence of noise.
Check that there are no sources of
noise in the vicinity.
(Display value
flashes.)
The input range and
display range were
exceeded.
Continues Continues
The OVER signal
turns ON.
Continues
The OVER or UN-
DER signal turns
ON.
Continues Take steps to ensure that the input
values and display values are with-
in the allowable ranges.
rmt
rmtrmt
rmt
(RMT)
(Flashes for 3 s.)
The remote/local
section is set to re-
mote.
Continues Continues Continues Continues If an attempt to change a setting
using key operations is made with
the remote/local selection set to re-
mote, this error will flash for 3 s. To
enable settings to be changed, set
the remote/local selection to local.