Bosch Rexroth Servodyn-D Series Maintenance Manuallines page 26

1070 066 032 / 03 Servodyn-D
VMA..KR, VMA..B,C,D,F warning displays
4.3 VMA..KR, VMA..B,C,D,F warning displays
Displays Warning
flash
alternately The drive can switch off without delay.
Overload
Output limit of the VM reached during sup-
ply or regeneration:
D P
D P
Overtemperature
Heat sink temperature > 75_C
Overtemperature
Ambient temperature > 45_C
Power failure, 1 phase
The VM maintains axis supply, although the
output is reduced to 66 %.
Overload may result if failure of one phase
is long-term.
Power failure, 2 or 3 phase
U
system rms
The DC link can be temporarily supported
by the axes, which are informed of the
power failure via the module cross connec-
tion.
> 140 %, or
max
> 100 %
N
<70 % for more than 3 ms.
Electric Drives Bosch Rexroth AG
and Controls
Action
In continuous operation: reduce load.
When regenerating:
ing ramp by limiting braking current
(P-0-0027)
D Check air supply
D Check fan
D Check application conditions
D Observe derating
D Check fuses and line system
D Check wiring
D Replace power supply module NA
D Check fuses and line system
D Check wiring
D Replace power supply module NA
4–3
select longer brak-