Shihlin electric SPM-3 User Manual

_________________________Shihlin Electric SPM-3 User Guide__________________
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Chapter 3 Connection & Wiring
3.1 Back view of connection ports
1.Aux Power(N-, ,L+)
2.Digital output (Com2 DO2 Com1 DO1)
3.Current Terminal (3L 3S 2L 2S 1L 1S)
4.Lon Port(D-,D+)
5.Voltage Terminal (N,C,B,A)
6.RS485 Port (D-,COM,D+)
3.1.1 Aux. Power Supply
 Before powering the instrument, verify the pin position at L+ and N-, leave the middle pin blank.
 Power standard is 80-380Vac/100-300Vdc.
 Aux. power of this instrument must not be earthed.
If connecting DC aux. power, make sure the pins are in the right place
3.1.2 Digital Output
 2 channel 4 pin digital output (Com2 DO2 Com1 DO1)
 External power 12-240VAC-DC/120mA max
 Com1 DO1 for digital output1, Com2 DO2 for digital output 2
 Port 1 assigned selection: NONE、OVER V/I、OVER F； UNDER V /I、UNDER F； OVER Dmd； ANY。
 Port 2 assigned selection: Energy pulse output base on kh (wh / pulse) setting or alarm output
same as port 1
3.1.3 Current Terminal
 3 channels/6 terminals current inputs (3L 3S 2L 2S 1L 1S)
 Input current range from 8mA to 5A (CT secondary)
Warning ！
The CT input current must not exceed 10A
Warning ！
Make sure to short secondaries of each current transformer before removing the CT connection inputs.
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Shihlin electric SPM-3 Specifications

General

Brand	Shihlin electric
Model	SPM-3
Category	Measuring Instruments
Language	English