Omron E5ZN - Output Errors

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Output Errors Section 8-5
8-5 Output Errors
Control Output or Alarm Output Does Not Turn ON
Probable cause Remedy
Connections PV of the E5ZN is abnormal. Refer to 8-3 Temperature Sensing Errors for
appropriate troubleshooting.
Polarity of the load or connected terminals are
wired incorrectly.
Correct the wiring.
Load exceeding the output ratings of the E5ZN is
connected.
• Connect a load that does not exceed the out-
put ratings to the E5ZN.
• Request repair of the E5ZN if it is malfunction-
ing.
Load power supply is not connected to transistor
output.
Provide a power supply satisfying the output rat-
ings of the E5ZN and suitable for the load.
Polarity of the load power supply for transistor
output is incorrect.
Correct the wiring.
Settings Operation after power ON has been stopped. • Send A Control Operation run command from
the host after turning the E5ZN ON.
• Set operation after power ON to “continue.”
E5ZN has not started control operation. Sent a Control Operation RUN command from the
host.
Control point designation is incorrect. Set the correct control point numbers.
SP of the E5ZN is set incorrectly. Correct the SP settings.
The output allocation is incorrect. Set the correct output allocation.
Incorrect multi-SP is designated. Set the correct multi-SP.
The same multi-SP is selected for all channels
because event input is designated for multi-SP.
Specify a setting other than “event input” for multi-
SP so that different multi-SP can be designated
for each channel.
When designating multi-SP with event input, the
ON or OFF status of the input is not kept on hold.
Set the E5ZN so that the ON or OFF status of the
input is kept on hold while designating the multi-
SP with the event input.
E5ZN attempts multi-SP designation with commu-
nications when multi-SP event input designation
is selected.
Correct the multi-SP designation method setting.
Alarm mode of the E5ZN is set to 0 (no alarm
function).
Set the correct alarm mode.
Alarm mode of the E5ZN is set to alarm with
standby sequence.
Use alarms without a standby sequence.
Deviation value and absolute value are incorrect
for the alarm mode set.
Set the correct alarm mode.