Troubleshooting; What Do I Do If An Error Occurs; Quick Diagnostic Using The 7-Segment Displays; Transmitter Diagnostics - Siemens SIMATIC FS400 Anleitung

11

Troubleshooting

The following information is used for rapid troubleshooting in the event of a
malfunction.
11.1

What do I do if an error occurs?

If the AOPD shows an error on the display, the machine must be stopped immediately
and checked by an experienced technician. If it is determined that the error cannot be
clearly defined and remedied, your local SIEMENS office and/or the Technical Support.
11.2

Quick diagnostic using the 7-segment displays

Operational malfunctions often have simple causes that you can remedy yourself. The
following tables will help you do this.

11.2.1 Transmitter diagnostics

Symptom
7-segment display does not light up
8. is constantly lit
F. is constantly lit and briefly
interrupted by an error number
Decimal point in the 7-segment
display is lit.
Table 11.2-1: Transmitter diagnostics

11.2.2 Receiver and transceiver diagnostics

Code Cause / significance
LEDs and 7-segment
displays are not lit
F4 Internal fault
F6* Short circuit between ground
and OSSD1 or cross-circuit
F7 OSSD short circuit after VCC
output 1 or cross-circuit
F8* Short circuit between ground
and OSSD 2 or cross-circuit
Table 11.2-2: Receiver diagnostics
188
Measure to eliminate error
Check 24 V DC supply voltage
Check connection cable
Replace transmitter if necessary
Hardware error, replace transmitter
Internal error, replace transmitter
Jumper 3-4 is missing in the transmitter's
connection cap or external circuit is not closed
Insert jumper
Measure to eliminate error
Check 24 V DC supply voltage, check
connection cable,
replace the receiver if necessary
Send the device in
Clear grounded short circuit, overload or
cross-circuit;
turn supply voltage off and on again
Clear short circuit after VCC or cross-circuit, if
it occurs again send the device in
Clear grounded short circuit, overload or
cross-circuit;
turn supply voltage off and on again