Troubleshooting 04/2005
SINAMICS G110 Operating Instructions
66 6SL3298-0AA11-0BP0
Checking for an ON Command
If, for example, DIN0 on terminal 3 was set-up to give an ON command, the
following procedure would allow the user to check that an ON command is present:
1. Ensure the BOP is connected to the inverter.
2. Set P0003 = 3.
3. Select parameter r0722.
4. The Seven-segment display will indicate the active bits as follows:
5. The lower mark on the right-hand side of the display indicates that DIN0 is
active high, that is, an ON command is present.
If the active high bit is not present it indicates that a ON command in not present. In
such a case it is necessary to check the hardware configuration to ensure that
DIN0 was, in fact, set-up for the ON command.
In the case of ON/OFF control via the RS485 bus (USS protocol) the relevant bit
(bit 02) of status word 1 (r0052) can be found in the following position:
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