8-2
Warning Diagnostic Messages (Exxxx)
Rexroth IndraDrive
DOK-INDRV*-GEN-**VRS**-WA01-EN-P
E8028 Overcurrent in power section
Supported by Firmware Variant:
FWA-INDRV*-
MPH02
VRS-MS
FWA-INDRV*-
MPB02
VRS-MS
FWA-INDRV*-
MPD02
VRS-MS
The controller monitors the motor current (= controller output current)
supplied by the power section.
•
If the controller output current is higher than the 1.2-fold of
S-0-0110,
Amplifier peak current
- or -
•
if the controller output current is higher than the product of
P-0-4013,
Current limit value of demagnetization
and
S-0-0109, Motor peak
current
,
the output stage of the power section is locked until the controller output
current has fallen to allowed values again; during this time the warning
E8028 is output.
Cause
Remedy
Current loop incorrectly parameterized
Check current loop setting (
S-0-0106, Current loop
proportional gain 1
,
S-0-0107, Current loop integral
action time 1
) and, if necessary, correct it after having
contacted our service department
In the case of Bosch Rexroth motors with encoder
data memory (MHD, MKD, MKE), values for current
loop parameterization do not correspond to values in
encoder data memory
Check whether values in
S-0-0106, Current loop
proportional gain 1
and
S-0-0107, Current loop
integral action time 1
correspond to values in encoder
data memory (
P-0-2106, Current loop proportional
gain 1, encoder memory
and
P-0-2107, Current loop
integral-action time 1, encoder memory
)
Attention
: Calculation of
S-0-0106, Current loop
proportional gain 1
depends on
P-0-0001, Switching
frequency of the power output stage
and
P-0-0556,
Control word of axis controller
!
In the case of Rexroth motors without encoder data
memory, values for current loop parameterization do
not correspond to manufacturer-side specifications
Check whether values in
S-0-0106, Current loop
proportional gain 1
and
S-0-0107, Current loop
integral action time 1
correspond to manufacturer-side
specifications (see DriveTop)
In the case of third-party motors, output data for
calculating parameter values are not correct
Check whether output data for calculating parameter
values are correct
E8028 - Attributes
Display:
E8028
Mess. no.:
E8028 (hex)
LSA Control S.L. www.lsa-control.com [email protected] (+34) 960 62 43 01
