“Confidential, Do Not Duplicate without written authorization from NEC.”
8-30
CIRCUIT DESCRIPTION
T-SENS PWB Circuit Operation
A temperature IC of I2C protocol is provided.
The measuring range is –15° ~ +85°, and accuracy is ±2°.
A total of five T-SENS PWBs are used in NC1600C. (The same circuit in all cases)
Each T-SENS PWB is connected to the PJDIV PWB.
Since all the T-SENS PWB circuits have the same configuration, the changeover IC is used in the PJDIV PWB
for selection.
(This is because all the circuits are the same, and therefore the I2C address is also the same.)
By I2C protocol communication via the PJDIV PWB, the CPU PWB identifies each temperature.
This value is used for temperature indications and as functional information about the protector.
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