1-7
IM 04P03B01-01E
Functional Explanation and Setup Guide
For the procedure to set the functions, see section 1.6, “Function Setup Guide.”
1
Alarm Indication
When an alarm occurs, the ALM indicator in the status display section illuminates, and
the 2
nd
digit of the LED shows the alarm status for each channel. When the alarm clears,
the indicator and the LED turn OFF.
Alarm Recording
The alarm occurrence/release can be recorded on the chart paper. See section 1.3.
Alarm Output Relay (/A1, /A2, and /A3 Options)
Contact signals can be generated from alarm output relays when alarms occur. The
number of output relays is 2 (/A1), 4 (/A2), or 6 (/A3). The alarm output relays are
denoted as I01 to I06 on the recorder.
The following functions can be assigned to the alarm output relay.
Diagnosis Output
The diagnosis output can be assigned to alarm output relay I01.
The relay is activated when there is an error in the plotter operation on the pen model,
when a burnout is detected, or when there is an error in the A/D converter. Output relay
I01 is normally energized and de-energizes when an error is detected (de-energized
operation).
Note
If diagnosis output is enabled, I01 becomes a relay dedicated to diagnosis output.
<Related Topics>
Setting the diagnosis output: Section 4.1
Energized/De-energized Operation of Alarm Output Relays
You can select whether the alarm output relay is energized or de-energized when an
alarm occurs. If de-energized is selected, the status of the alarm output relay when an
alarm occurs is the same as the status that results when the recorder is turned OFF
(including power failures). The setting applies to all alarm output relays.
The default setting is energized.
NO
Energize
De-energize
C
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
C
NC
When power is
turned OFF
NO : Normally Opened, C : Common, NC : Normally Closed
When an alarm
is not occurring
(During normal
operation)
When an alarm
is occurring
(During a
malfunction)
Note
If diagnosis output is enabled, I01 is fixed to de-energized operation.
<Related Topics>
Setting the energized/de-energized operation of alarm output relays:
Section 4.1
Alarm Output Relay Operation
When the output destination of multiple alarms is assigned to a single alarm output relay,
the relay is activated when any of the assigned alarms is occurring (OR operation).
1.2 Alarms