Bosch Rexroth PST 6 0 Series, Operating Instructions Manual

Page: 307 / 330

1070080029 / 05 Bosch Rexroth AG Electric Drives
and Controls
PST 6xx0 | | 307 /330
Troubleshooting
14 Troubleshooting
The units are sturdily built. Nevertheless, disturbances may occur in ex­
ceptional cases:
•
by wrong electrical connection or overvoltage in the mains,
• by insufficient cooling, maintenance or overload,
• by exceeding the maximum current values (parametrization) or moni­
toring values.
When an error has occurred, the timer will be inhibited. In this con­
dition, no welding schedule is possible until the error has been reset.
If warnings are present, welding is still possible.
In case of fault, the green “READY” LED is extinguished on the front
panel of the weld timer.
PST 6xx0
READY LED
Battery fault LED
Fig.54: Display at the timer unit (error)
More detailed information on the errors that occurred is provided
•
via BOS 6000 in the „Fault table“
• via the small operator terminal (VCP05.2).
A list of all error and status messages is provided in the online help of
BOS 6000.
There you will also find information on error elimination in addition to
the possible causes.
Both faults and warnings may be ”self‐resetting” or ”non-self‐resetting”.
”Self‐resetting” means that events are automatically reset by the timer
when the cause of the fault or the warning has been corrected. There­
fore, they do not require a manual fault reset.
Examples of self‐resetting faults include:
-
Stop / No 24V
- Power voltage off / too low
- Synchronization / mains voltage error.
”Non-self-resetting” faults can be reset via
•
the BOS software
• a positive edge at the fault reset inputs of the I/O array of the weld
timer
• the RESET button on the timer's front side
The "Heat sink temperature too high” and ”Overcurrent or earth fault”
errors must always be manually reset via the RESET button.
ENGLISH
Error displays
Reset fault