Bosch Rexroth VM350 - Displays and diagnostics

26/112 Bosch Rexroth AG VM350 | 3 609 929 B32/2008-09
Displays and operating elements
Temperature and voltage errors can only be
reset by switching the whole system off and
on again, or by pressing the Reset button on
the front panel.
The following displays and operating
elements are integrated into the VM350
(Fig. 2):
Fig. 2: Displays and operating elements on the
VM350
During operation, the following displays/
diagnoses are output (Table 1):
NOTE!
Pressing the reset button only resets the
VM350.
i
INT
EXT
Reset
LED Ready for operation
LED Mains voltage error
LED Intermediate circuit voltage error
LED Temperature error
LED Internal voltage error
LED External 24 V available
Reset button
Table 1 Displays/diagnoses during operation
LED Display/diagnosis Error range/limit
values
Ready for operation steady green when ready for operation –
Off when not ready for operation –
230 V mains voltage error
a
Red flashing if exceeded > 265 V
Steady red if too low < 170 V
Intermediate circuit voltage
error Red flashing if limit value is infringed > 420 V
DC
Temperature error Red flashing if exceeded T
heat sink
> T
admissible
Internal voltage error
– VEE Red flashing if exceeded > 30 V
DC
Steady red if too low < 18 V
DC
– VDD Red flashing if exceeded > – 18 V
DC
Steady red if too low < – 30 V
DC
– VCC Red flashing if exceeded > 5.4 V
DC
Steady red if too low < 4.8 V
DC
External 24 V available (supply
to X1S1; short circuit at XDN2
(VEE) is not displayed)
Steady green if 24 V is within admissible range –
Flashing green if voltage is too high > 27 V
DC
Off if voltage is too low < 21 V
DC
All LEDs except BTB LED and
“External 24 V available” LED
Flashing red if emergency OFF error –
a The connected mains voltage is measured when the VM350 is switched on, then the corre-
sponding limits for overvoltage and undervoltage are automatically set.