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Indication of operating state/运行状态指示情况 SQL361B.., SQL351B..
en
The LED display indicating operating status can be viewed by opening the cover of the electronics module.
zh-cn 打开电子模块的盖子，可以通过 LED 显示看到运行状态情况。
SQL351B25..50
SQL361B25..50
Function
Calibration mode
en
Control mode
功能
校准模式
zh-cn
控制模式
en
As a general rule, the LED can assume only the states shown above (continuously red, flashing, or off).
zh-cn 一般来说，LED 只能呈现上述状态（持续红色、闪烁或关闭状态）。
The Green LED (D6) with short lit on when reach to "100 %" and the Red LED (D7) with short lit on when reach
1)
to "0 %" stroke position.
en
When power supply to actuator but no Y control signal and also calibration not started, LED will be continuously
2)
light too.
当到达"100 %"行程位置时，绿色 LED 灯（D6）会短暂亮起，而当到达"0 %"行程位置时，红色 LED 灯
1)
（D7）会短暂亮起。
zh-cn
2)
当向执行器供电但没有 Y 控制信号且校准未开始时，LED 灯也会持续亮起。
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2022-06-15
LED Indication
D10
OFF
ON
ON
Flashing
OFF
Flashing
ON
Flashing
OFF
OFF
LED 指示灯
D10
不亮
亮
亮
闪烁
不亮
闪烁
亮
闪烁
不亮
不亮
M4520
74 319 0809 0
Remarks, troubleshooting
D4
Run calibration, everything ok.
Calibration error.
Automatic operation; everything ok.
Internal error, troubleshooting
No power
Troubleshooting, eventually replace actuator
备注，故障排查
D4
运行校准，一切正常
校准错误。
自动运行；一切正常
内部错误， 故障排查
未通电：故障排查，最终更换执行器
1)
1)
2)
1)
1)
2)
Siemens Smart Infrastructure
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