REXROTH DIAX04, Troubleshooting Manual

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DIAX04 ELS-06VRS Description of Diagnostic Letters F... and E...
4-19
DOK-DIAX04-ELS-06VRS**-WA01-EN-P
Cause:
1. Disruption in the fiber optic transmission line.
2. Too much attenuation of the light signal.
3. Malfunction in the SERCOS interface (general).
Remedy for:
1. Check all fiber Optic connections in the SERCOS ring.
2. Measure the attenuation in the fiber optic cable.
3. The maximum attenuation between TX and RX must not fall
below 12.5 dB.
4. Exchange the SERCOS interface module in the drive controller.
See also the functional description: "SERCOS interface error"
F402 Double MDT failure shutdown
The master data telegram (MDT) has not been received in the drive over
the course of two successive SERCOS or fieldbus cycles.
Cause:
1. Fiber optic bus: interference in the fiber optic transmission
2. Fiber optic bus: light signal input power too low
3. SERCOS: problem in SERCOS interface (general)
4. Fieldbus: bus connection terminated/blocked longer than watchdog
duration
5. The bus master is no longer sending cyclic telegrams to the drive,
although they are expected in phase 4.
Remedy for:
1. All fiber optic cable connections in SERCOS ring must be
checked.
2. The fiber optics power read at the receiver (test mode: continuous
light) must lie between the range of –20dBm (10µW) and –5dBm
(320µW). If it does not, then adjust transmission power or check
attenuation of the fiber optic cable (maximum attenuation between TX
and RX may not exceed 12.5 dB!)
3. SERCOS interface module in drive has to be replaced.
4. Check fieldbus connector and cable connections, signal level.
5. Switch master on and start up cyclic communications, see Control
Manual.
See also the functional description: "SERCOS Interface Error"
F403 Invalid communication phase shutdown
An invalid communications phase was given by the SERCOS master
module (phase > 4).
Cause:
Error in the SERCOS master module of the control system.
Remedy:
Consult the control system manufacturer.
See also the functional description: "SERCOS interface error"