2.2 CPU Unit
Temperature Sensor
2-13
There are three levels of alarms, as shown in the following table.
Temperature Sensor
A temperature sensor is built into the CPU-202 CPU Unit.
The temperature sensor constantly monitors for abnormal temperatures in the CPU-202 Unit. If a tempera-
ture error is detected, an alarm is displayed on the CPU-202.
There are four levels of alarms, as shown in the following table.
Display ALM Indicator Error Description
A.240 Lit A Fan operation failure was detected.
E.083 Lit
The Fan remained stopped for more than a minute after A.240 was detected.
(The CPU Unit will stop.)
hLit
The failsafe function was activated for E.083 (Fan Alarm) or E.082 (Tem-
perature Warning).
(The CPU Unit will stop.)
(This alarm is displayed 5 seconds after E.083 is detected.)
If the above alarms occur, turn OFF the power supply to the CPU-202 immediately and replace the
Fan.
Refer to the following manual for the Fan replacement procedure.
MP3000 Series MP3200 Troubleshooting Manual (Manual No.: SIEP C880725 01)
Display
ALM
Indicator
Error Description
A.241 Lit A rise in the internal temperature was detected.
E.081 Lit
The temperature continued to increase after A.241 was detected and is
approaching the permissible temperature of the internal parts.
(The CPU Unit will stop.)
E.082 Lit
The temperature continued to increase after E.081 was detected and has
reached the permissible temperature of the internal parts.
(The CPU Unit will stop.)
hLit
The failsafe function was activated for E.083 (Fan Alarm) or E.082 (Tem-
perature Warning).
(The CPU Unit will stop.)
(This alarm is displayed if the temperature continues to increase after E.082
was detected.)
If the above alarms occur, turn OFF the power supply to the CPU-202 immediately and check the
ambient environment and installation conditions.
Refer to the following section for details on the ambient environment and installation requirements.
4.1 MP3200 Installation and Usage Conditions (page 4-2)
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