Rexroth IndraDrive
Error Messages
7-51
DOK-INDRV*-GEN-**VRS**-WA01-EN-P
F4002 Double MDT failure shutdown
Supported by Firmware Variant:
FWA-INDRV*-
MPH02
VRS-MS
FWA-INDRV*-
MPB02
VRS-MS
FWA-INDRV*-
MPD02
VRS-MS
The
m
aster
d
ata
t
elegram (MDT) was not received in the drive in two
successive SERCOS or field bus cycles. The drive goes back to
communication phase 0.
Cause
Remedy
Bus master does not send any more cyclic telegrams
to the drive. These, however, are expected in
communication phase 4
Switch master on and start cyclic communication; see
manual for control unit
Fiber optic cable bus: disturbance in fiber optic
transmission line
Check all fiber optic cable connections in SERCOS ring
Fiber optic cable bus: Input power of light signals too
low
Light power to be measured at receiver (with test
mode: continuous light) must be between
–
20 dBm (10 µW) and
–
5 dBm (320 µW)
Adjust transmitting power or check attenuation of fiber
optic cable.
Maximum attenuation between TX and RX mustn't
exceed 12.5 dB
Disturbance in SERCOS interface (general)
Replace control section or entire drive controller
Different transmission times of master data
telegrams in master and slave
Synchronize transmission times of master data
telegrams in master and slave
Note:
Only Rexroth service engineers or especially trained users are
allowed to replace the control section. The replacement of the
entire drive controller is described in the Project Planning
Manual for the power section.
See also Functional Description "Interface Errors and Diagnostic
Possibilities"
F4002 - Attributes
Display:
F4002
Mess. no.:
F4002 (hex)
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01