Omicron CMC 310, Руководство пользователя

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CMC 310 User Manual
16 OMICRON
3.3.5 Status LED A and B
The status LEDs A and B above the Associate button are of interest in case of troubleshooting.
A : yellow status LED
• ON indicates that the test set is ready to be controlled by a computer. The hardware checks in the
test set are finished.
• OFF indicates that the test set is waiting for a software image download. This is the case when the
! button is pressed while powering up the CMC test set.
B : green status LED
• LED B blinks slowly: The CMC test set waits for the TFTP download ( t rivial f ile t ransfer p rotocol) of
a software image.
• LED B is ON: The TFTP download of the software image is in progress.
• LED B blinks quickly: The computer is writing, for example, the software to the flash memory of the
CMC test set.
► Do not turn off the CMC test set as long as the writing is in progress.
3.3.6 SELV interfaces
All inputs and outputs of the SELV group (SELV = s afety e xtra l ow v oltage, defined in IEC 60950-1)
reference to a common neutral ( N ) that is internally connected to the protective earth (GND) of the
housing.
Note: The hardware for LL out 1–6 and ETH2 exists but is not used in the CMC 310 .
External interface (ext. Interf.):
The SELV interface connector ext. Interf. holds 4 additional transistor binary outputs
( BINARY OUTPUT 11–14). Unlike regular relay outputs, the outputs of BINARY
OUTPUT 11–14 are bounce-free binary outputs and have a minimal reaction time.
In addition, 2 high frequency counter inputs for up to 100 kHz are available for the testing
of energy meters.
LL out 1–6 (low-level outputs 1–6)
The hardware for LL out 1–6 exists but is not used in the CMC 310 .
ext. Interf.