TD_202101_Logger1000_Quick Guide for 3-Phase PV Inverters (5-20kW)_V1.2 Page 6 of 16
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2.2 Energy Meter Connection
For supplies smaller than 80 Amps, use the DTSU666 with inbuilt CTs.
For installations where the supply is larger than 80 Amps, the electrician need to select
appropriate CT ratings. The secondary current of CT should be 5A. The CT ratios can
be set on Logger1000. Please refer Meter Selection Guide for reference.
The corresponding pinouts to RJ45 are Pin 3 (White-green) to RS485- B and Pin 6
(Green) to RS485+ A:
On the DTSD1352 energy meter side, terminal 21 to Green cable (RS485+ A) and
terminal 22 to White / Green cable (RS485- B).
The following figures shows the meter cable connection on the energy meter.
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