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Burnout
If burnout occurs, the following will be performed depending on the selection in [Error indication].
If Disabled is selected in [Error indication]:
If PV has exceeded Indication range and Control range, the PV Display flashes ~~~~. OUT1 and
OUT2 are turned OFF (OUT1 low limit value for direct current output, OUT2 low limit value for DA,
EV3DA).
If PV has dropped below Indication range and Control range, the PV Display flashes ____.
OUT1 and OUT2 are turned OFF (OUT1 low limit value for direct current output, OUT2 low limit value
for DA, EV3DA).
If thermocouple or RTD input is burnt out, or if DC voltage (0 – 1 V DC) input is disconnected,
the PV Display flashes ~~~~.
If the following DC voltage or current input is disconnected:
4 – 20 mA DC, 1 – 5 V DC inputs: The PV Display flashes .
0 – 20 mA DC, 0 – 5 V DC, 0 – 10 V DC inputs: The PV Display indicates the value
corresponding with 0 mA DC or 0 V DC input.
If Alarm output, Heater burnout alarm output or Loop break alarm output is selected in [Event output
EV allocation], Event output will be turned ON under the alarm active conditions.
Burnout is enabled even in Program control STOP (in Standby) status. However, Event output is not
turned ON.
[Output status when input errors occur] can be used only for controllers using direct current and
voltage inputs, and direct current output.
Output status differs depending on selection in [Output status when input errors occur].
Output
status
when input
errors occur
Contents,
Indication
Output Status
OUT1 OUT2
Direct (Cooling)
action
Reverse (Heating)
action
Direct (Cooling)
action
Reverse (Heating)
action
[~~~~]
flashes.
ON (20mA) or
OUT1 high limit
value (*)
OFF (4mA) or
OUT1 low limit
value
OFF or
OUT2 low limit
value
ON or
OUT2 high limit
value (*)
OFF (4mA) or
OUT1 low limit
value
OFF or
OUT2 low limit
value
[____]
flashes.
OFF (4mA) or
OUT1 low limit
value
ON (20mA) or
OUT1 high
limit value (*)
ON or
OUT2 high
limit value (*)
OFF or
OUT2 low limit
value
OFF (4mA) or
OUT1 low limit
value
OFF or
OUT2 low limit
value
(*) Outputs a value between OFF (4mA) and ON (20mA) or between OUT1 (or OUT2) low limit value and OUT1
(or OUT2) high limit value, depending on deviation.
If Enabled is selected in [Error indication]:
If PV has exceeded Indication range and Control range, the PV Display indicates ~~~~ and
er07 alternately. OUT1 and OUT2 are turned OFF (OUT1 low limit value for direct current output,
OUT2 low limit value for DA, EV3DA).
If PV has dropped below Indication range and Control range, the PV Display indicates ____ and
er07 alternately. OUT1 and OUT2 are turned OFF (OUT1 low limit value for direct current output,
OUT2 low limit value for DA, EV3DA).
If thermocouple, RTD or DC voltage (0 to 1 V DC) input is burnt out or disconnected, the PV Display
indicates ~~~~ and er07 alternately.
If the following DC voltage or current input is disconnected:
4 – 20 mA DC, 1 – 5 V DC inputs: The PV Display indicates ____ and er07 alternately.
0 – 20 mA DC, 0 – 5 V DC, 0 – 10 V DC inputs: The PV Display indicates the value
corresponding with 0 mA DC or 0 V DC input.
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