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Determining the Error from the Current Situation for Output Errors
Section 7-7
7-7 Determining the Error from the Current Situation for
Output Errors
No Control Outputs. No Alarm Outputs.
Possible cause Countermeasure
Connection Measured temperature is wrong. • Perform the action outlined in 7.5.
The load polarity or connected terminals are wrong. • Rewire correctly.
A load exceeding the output rating is connected. • Reduce the load to within the rating.
• Get the Unit repaired if it is malfunctioning.
No power supply for the load is connected to the transistor
outputs.
• Use a power supply suitable for the output rating and load.
The polarity of the load power supply for transistor outputs is
incorrect.
• Rewire correctly.
Setting Set the Operation After Power ON parameter to Stop. • Execute a RUN (start operation) operation command after
the power is turned ON.
• Set the Operation After Power ON parameter to Continue.
Control does not start. • Execute a RUN (start operation) operation command.
The specified channel is incorrect. • Set the correct channel number.
The control output assignments are incorrect. • Set the correct control output assignments.
The set point is incorrect. • Set the correct set point.
The specified bank is incorrect. • Set the correct bank.
A bank specification for all channels has been assigned to
an event input, and an unintended bank has been selected.
• Assign the bank of the channel for which the bank is to be
changed to an event input.
Alarm mode is set to 0 (no alarm). • Set the correct alarm mode.
Alarm mode is set to an alarm with a standby sequence. • Set to an alarm without a standby sequence.
The deviation alarm and absolute-value alarm settings for
alarm mode are incorrect.
• Set the correct alarm mode.
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