Mitsubishi Electric E80 Series, Maintenance Manual

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M800/M80/E80 Series Maintenance Manual
1 System Basic Configuration
19 IB-1501273-F
 FCU8-MU044 (M80W)
[LED]
No. Name Lamp state Details
(1) 24VDCIN Lit (Green) 24V power is being supplied from the external power supply.
Not lit
The followings may have caused an error:
 No 24V-power supply from the external power supply.
 Disconnection of fuse near DCIN connector.
 Failure of LED.
(2) DCOUT Lit (Green) The followings are all successfully output: 5V and 3.3V generated from
24V; 2.5V,1.8V,1.5V,1.15V, and 1.1V on the main card.
Not lit The followings may have caused an error:
 No 24V-power supply from the external power supply.
 Failure in any of the power output circuits.
 Failure of LED or IC which helps turn the LED ON.
(3) READY Lit (Green) Servo ON (or ready ON) state.
Not lit Servo OFF (or ready OFF) state.
(4) ERR Lit (Red) H/W is not operating properly. The followings may have caused an error:
 Occurrence of NC watchdog error.
 Failure of main CPU card.
Not lit H/W is operating properly.
(5) SDACC Flashing (Green) Accessing to front-side SD card.
Not lit Not accessing to front-side SD card.
(1)
(2)
(5)
(4)
(3)
Cover opened