Bosch Rexroth Rho 4.0 - Page 66

6−2 Electric Drives
and Controls
Bosch Rexroth AG RhoMotion 1070072365 / 04
LED Display
Status LEDs
The status LEDs monitor the 24-V power supply and the internal fuse for
the digital outputs and the PHG.
When the power supply of the rho4.0 is switched off, the LEDs H2 to H4
and H41 to H47 turn off, H1 remains permanently on.
. When the power supply of the rho4.0 has been switched off
through voltage error, system voltage or temperature sensor (see
4.4, 4.5), the rho4.0 can be restarted by actuating the RESET key S1
or by switching on and off the 24-V power supply. The 24 V must
remain switched off until the LED H40 has turned off (approx. 5 s).
LED
H 40 24V Power supply for PHG and I/O:
Power is connected and the internal
fuse is ok
LED is permanently on
H 41 rho4.0 in normal operation:
D running time error
D System error
LED is permanently on
LED flashes slowly
rho4.0 Startup:
D Invalid data in SRAM in the range
of the boot parameters. It is assu-
med that the buffering has not
functioned. The whole SRAM
range including the stored cause
of the switch-off is deleted and
the default boot parameters are
available
LED flashes quickly during
the startup
D Power supply has detected short
circuit of a supply voltage and
switched off the rho4.0
LED flashes slowly during
the next startup
D Power supply has detected over-
temperature and switched off the
rho4.0
LED flashes slowly during
the next startup
H 42 rho4.0 Startup:
D startup ok
D startup failure
LED flashes slowly
LED is permanently on
Check S201; the value
“254” may not be assigned
(S201/1 OFF, S201/2−8
ON)
rho4.0 Shutdown:
D shutdown
LED flashes quickly