App index, Fail output, Chart end output – Yokogawa µR20000 User Manual
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IM 04P02B01-01E
Funct
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Explanat
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Setup
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For the procedure to set the functions, see section 1.10, “Function Setup Guide.”
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App
Index
1.7 FAIL/Chart End Detecton and Output Functon
(/F1 Opton)
FAIL Output
When a failure occurs in the CPU of the recorder, a relay contact signal (1 signal) is
output. The relay is energized when the CPU is normal and de-energizes when a CPU
failure occurs. Therefore, relay output is carried out also when the power is turned OFF
(including a power failure). This relay behavior cannot be changed.
• FAIL Relay Output
NO
C
NC
Normal
NO
C
NC
Failure
NO
C
NC
Power-OFF
NO: Normally Opened, C: Common, NC: Normally Closed
Chart End Output
When the remaining amount of chart paper falls to approximately 2 cm, recording is
stopped, and the relay contact signal (1 relay) is output. The relay is energized in this
case. This relay behavior cannot be changed.
NO
C
NC
Normal
NO
C
NC
Chart end
NO
C
NC
Power-OFF
NO: Normally Opened, C: Common, NC: Normally Closed