Rexroth IndraDrive
Warning Diagnostic Messages (Exxxx)
8-11
DOK-INDRV*-GEN-**VRS**-WA01-EN-P
E8057 Device overload, current limit active
Supported by Firmware Variant:
FWA-INDRV*-
MPH02
VRS-MS
FWA-INDRV*-
MPB02
VRS-MS
FWA-INDRV*-
MPD02
VRS-MS
Supported by Supply Unit:
HMV01
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.
Cause
Remedy
Device is not adjusted to requirements of application
or motor
Check dimensioning of drive and, if necessary, use
more powerful device
Too high acceleration torque/too high acceleration
force demanded
Reduce acceleration by adjusted command value profile
Overload of drive by too high continuous load
Reduce overload in the case of long machining phases
Too high process or machining force (e.g. infeed)
Reduce process or machining force
Mechanical changes in axis (e.g. friction, load
conditions,...)
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)
For HCS, HMS, HMD
For HMV01.1R
LSA Control S.L. www.lsa-control.com [email protected] (+34) 960 62 43 01
