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Indicators
Utilizing the programmable DAS function of the COM35:
The COM35, exclusively, provides the ability to activate the DAS function of the WLETU776 directly via the COM35’s programmable I/O.
When the COM35 is programmed to enable this function, opening the connection between terminals 1 and 3 will cause the trip unit to switch
to Parameter Set B. When contact is made between these two terminals, the trip unit will utilize Parameter Set A. The programmable output
can then be used to activate a local status indicator (as illustrated). This COM35 I/O functionality must be programmed by the user via
Siemens powerconfig software.
The programable output can carry a load of 1A, up to an ambient temperature of 45C (113F). Above that, the current–carrying capability of
the output should be de-rated to 400mA at 70C (158F). The length of the wires connecting the activation switch to the input of the COM35
should be less than 50m (165ft) and be AWG18. Twisted/shielded-pair wiring is recommended for cable runs approaching this length.
LED Indication Meaning
PROFINET IO
green Normal PROFINET IO communcation
green
flashing
Communication with PROFINET IO
Controller, no communication with
PROFINET IO Supervisor
red
No communication with PROFINET IO
Controller, no communication with
PROFINET IO Supervisor
Modbus TCP
green
At least one opened Modbus TCP
connection
green
flashing
Ethernet link available but no Modbus
TCP connection
off No Ethernet link
c
off No cparticipant active
green ccommunication operating
green
flashing
No ETU installed (e.g: non-automatic/
disconnect switch application)
red cerror
DAS switch
ON/OFF
DAS Status indicator
24V DC
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