8-40
Warning Diagnostic Messages (Exxxx)
Rexroth IndraDrive
DOK-INDRV*-GEN-**VRS**-WA01-EN-P
E2802 HW control braking resistor
Supported by Firmware Variant:
FWA-INDRV*-
MPH02
VRS-MS
FWA-INDRV*-
MPB02
VRS-MS
FWA-INDRV*-
MPD02
VRS-MS
During the braking process the increasing DC bus voltage is reduced by
switching on the braking resistor. But when the regenerated braking
power is too high the DC bus voltage keeps increasing. The warning
E2802 is generated when the protective hardware circuit switches on the
braking resistor in the case of high voltages (>900 V).
Cause
Remedy
DC bus voltage >900 V due to increased
regenerated braking energy
Check drive dimensioning and, if necessary, use
additional capacitance
Braking resistor defective or not correctly connected
Check function of braking resistor (incl. cabling and
connection)
Hardware defect in brake control
Replace power section or entire drive controller
Note:
Only Rexroth service engineers or especially trained users are
allowed to replace the power section. The replacement of the
entire drive controller is described in the Project Planning
Manual for the power section.
See also Functional Description "Power Supply"
E2802 - Attributes
Display:
E2802
Mess. no.:
E2802 (hex)
LSA Control S.L. www.lsa-control.com [email protected] (+34) 960 62 43 01