For Output Connection; For Wiring Terminal; Rs-485 Communication - Panasonic KW4M User Manual

6-3-4 For Output connection

Since the transistor output is insulated from the internal circuit by a photo-coupler, it can be used both
as a NPN output and PNP (equal value) output.
NPN output Pulse（+）

6-3-5 For Wiring terminal

・When using a crimp terminal, it should be with insulation sleeve applicable to M3.5 screw as shown
below.
・Tightening torque: under 0.8N･m

6-3-6 RS-485 communication

・When using shielded cable for the RS-485 transmission line, ground one end. Use a class D (class 3)
dedicated earth for grounding. Do not share a ground with other earth lines. (Fig.1)
・ Change the slide switch on the side of main unit as a terminal station. (Fig.2)
・Be sure to connect with daisy chain the RS-485 transmission line between each unit.
Do not use a splitter. (Fig.3)
(Fig.1)
To RS-485 device
(Fig.2)
(Fig.3)
Eco-POWER METER
Pulse（-）
+ -
Load
+ -
Power supply for Load
Eco-POWER METER
General station
Sheilded cable
Class D grounding
Correct wiring
○
Incorrect wiring
×
PNP output Pulse（+）
3.7ｍｍ
(＋) (－)
Sheilded cable
Sliding switch
Terminal
Terminal station
Terminal
station
Eco-POWER METER
Pulse（-）
+ -
Load
+ -
Power supply for Load
Eco-POWER METER
Terminal station
(＋) (－)
Class D grounding
General
General station
(Factory setting)
Terminal
station
21