Routine Checks and Maintenance
9-77SA522 Manual
C53000-G1176-C119-2
9.4 Troubleshooting
If a device reports a problem or failure, the procedure below is recommended.
If none of the LEDs on the front panel are lit, then verify:
o Are the printed circuit boards fully inserted, in the correct slots, and properly connect-
ed to the front panel.
o Are the voltage magnitude and polarity correct for the power supply. Connection draw-
ings are shown in Section A.2 of the Appendix.
o Has the fuse in the power supply not blown. The location of the fuse is shown in Figure
9-5. If the fuse needs to be replaced, see Sub-section 9.5.2.
o If the red “ERROR” LED is on and the green “RUN” LED is off, then the device has
recognized an internal fault. Re-initializing the device can be attempted, see Section
9.2.
o If you see the following display, the device has arrived “monitor”-mode. In this case
you may initialize the device via :
q
Connect the 4 device to the PC and open the application in the PC.
q
Select ,QLWLDOL]HGHYLFH in the menu 'HYLFH (Figure 9-2).
Figure 9-2 Initializing device via
q
Enter password No. 7. The display becomes blank. After a successful initialization,
the LEDs return to indicate normal operation and the default display reappears. The
device settings are downloaded to the device provided they had been saved in the
PC after commissioning (refer to Section 8.4). The device is then in-service.
Further Assistance If these steps do not resolve the problem, please call your local Siemens representa-
tive or customer hot-line.
Our customer hot-line needs the following information to assist you:
− the complete order number (MLFB) of the device,
021,725
(TXLSPHQWGDWD²!
8VHULQWHUIDFH²!
6\VWHP,IDFH²!
5HVHW²!
6LHPHQVLQVWHQ²!
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