Device description – Lenze ETCxxxxx User Manual
Page 31
Device description
Control as PCI insert card (ETCPx)
Configuration and Watchdog
3.3
3.3.3
l
31
EDSTCXX EN 2.0
The watchdog circuit is used to check the processor and switches off the
linked outputs as soon as they are no longer triggered.
The Watchdog OK signal is connected to Pin 10 of the pin contact strip J5. For
external use this signal must be edited via the corresponding drivers and an
electrical isolation.
The jumper J38 is to be used for test purposes. It releases the WDOG signal
constantly irrespective of the Watchdog. The Watchdog OK signal is
indicated by the illumination of an LED in the status display.
J5
2
14
1
13
ETC038
Pin
Signal
1
GND
10
IO_WDOG
)
Note!
The Watchdog signal is a standard TTL output. This output must
not be taken directly from the PC but must be edited via
corresponding drivers and electrical isolation.
Watchdog OK signal
Jumper allocation J5, Serial
expansion bus (14−pole pin
contact strip)