Siemens Simatic S7-1500 Manual - Halaman 20

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Halaman Cetak
Siemens Simatic S7-1500 Manual
Diagnostics alarms
5.1 Status and error displays
Meaning of the LED displays
The tables below explain the meaning of the status and error displays.
LED RUN/ERROR
Table 5- 1
RUN/ERROR status and error displays
LED
RUN
ERROR
Off
Off
Flashes
Off
On
Off
Flashes
Flashes
LED PWR1/PWR2
Table 5- 2
PWR1/PWR2 status display
LED PWRx
Off
On
LED CHx
Table 5- 3
CHx status display
LED CHx
Off
On
20
Meaning
Voltage missing or too low at backplane bus.
Module is starting up.
Module is ready.
Hardware defective.
Meaning
Supply voltage L+ too low or missing.
Supply voltage L+ is present and OK.
Meaning
0 = Status of the output signal.
1 = Status of the output signal.
Switch on the CPU and/or the system pow-
•
er supply modules.
Verify that the U connectors are inserted.
•
Check to see if too many modules are in-
•
serted.
---
Replace the module.
Check the L+ supply voltage.
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Digital output module DQ 16x24VDC/0.5A BA (6ES7522-1BH10-0AA0)
Remedy
Remedy
Remedy
Manual, 09/2016, A5E32364017-AC