E8057 Device Overload, Current Limit Active - Bosch Rexroth IndraDrive Troubleshooting Manual

Rexroth IndraDrive

E8057 Device overload, current limit active

For HCS, HMS, HMD
For HMV01.1R
Cause
Device is not adjusted to requirements of application
or motor
Too high acceleration torque/too high acceleration
force demanded
Overload of drive by too high continuous load
Too high process or machining force (e.g. infeed)
Mechanical changes in axis (e.g. friction, load
conditions,...)
DOK-INDRV*-GEN-**VRS**-WA01-EN-P
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01
Supported by Firmware Variant:
Supported by Supply Unit:
In order to protect the devices against thermal destruction, the thermal
load of the output stage in devices with digital current control is
continuously calculated by a temperature model, depending on the
measured current.
If the thermal load exceeds 97% (displayed in P-0-0141, Thermal drive
load), the continuous current limitation is activated and the warning
E8057 is generated. As a consequence thereof the drive can no longer
follow the command values preset by a control unit.
Note: When the E8057 warning is active, bit 0 (overload warning) is
additionally set in S-0-0012, Class 2 diagnostics.
When the thermal load has reached 100%, the continuous current
limitation is activated and the warning E8057 is generated. As a
consequence thereof the available DC bus power is reduced and
especially drives that require high power can no longer follow the preset
command values.
Remedy
Check dimensioning of drive and, if necessary, use
more powerful device
Reduce acceleration by adjusted command value profile
Reduce overload in the case of long machining phases
Reduce process or machining force
Check mechanical system and, if necessary, optimize
load conditions and/or friction conditions
See also Functional Description "Current Limitation"
E8057 - Attributes
Display: E8057
Mess. no.: E8057 (hex)
Warning Diagnostic Messages (Exxxx)
FWA-INDRV*-MPH02VRS-MS
FWA-INDRV*-MPB02VRS-MS
FWA-INDRV*-MPD02VRS-MS
HMV01
8-11