# The Display Unit's Status LED

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1. STM6000 Series
2. ST6000 Series
3. SP5000 Series, SP5000X Series

Note: For information about the IPC Series status LED, refer to its hardware manual.

## STM6000 Series

Color | Indicator | Operation
Green | ON | In operation
Flashing (repeat ON for 1.2 seconds and OFF for 0.4 seconds) | STM-6B00D: Recoverable system error (e.g. communication error)*1*2
Flashing (repeat ON and OFF every 0.4 seconds) | STM-6B00D: Project file transferring
Flashing (after OFF for 2.8 seconds, repeat 5 times ON and OFF every 0.4 seconds) | STM-6B00D: Irrecoverable system error (e.g. Write command error)*1
Flashing once every 5 seconds | Backlight OFF (Standby Mode)
Orange | Flashing | Software starting up or in Recovery Mode
Red | ON | Power is ON.
Double flash | Display Module connection error
– | OFF | Power is OFF.

*1 For more information on error messages, refer to the following.

Error Message List

*2 When error is recovered, flashing ends.

## ST6000 Series

Color | Indicator | Operation
Green | ON | In operation
Flashing once every 5 seconds | Backlight OFF (Standby Mode)
Orange | Flashing | Software starting up or in Recovery Mode
Red | ON | Power is ON.
– | OFF | Power is OFF.

## SP5000 Series, SP5000X Series

Color | Indicator | Operation
Green | ON | In operation
Orange | Flashing | Software starting up or in Recovery Mode
Red | ON | Power is ON.
Red/Green | Alternating | Display Module connection error
Orange/Red | Alternating | SP-5B10, SP-5B90: SD card boot error
– | OFF | Power is OFF.