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Ls Electronics S100 Variable Speed Drive

This guide will show you how to connect the Polar Gateway to Ls Electronics S100 Variable Speed Drive. It will also take you through how to setup the parameters required Ls S100 drive to ensure communications to the Gateway

Steps to follow:

  1. Connect power to the Gateway.
  2. Connect RS-485.
  3. Final checks.
  4. Power on the system.
  5. Configure the Ls Electronics S100 Serial Parameters

Ls Electronics S100 Connection Setup

LsS100 Wiring Diagram
Wiring Diagram
1. Connect power to the Gateway.
Power Polar Gateway

Wire the Polar Gateway to a 12-24 V DC power supply. Connect the positive wire to the positive terminal and the negative wire to the negative terminal.

2. Connect RS-485.

Wire the RS-485 cable to allow communication with the Polar Gateway device. Connect A+ => S+  and B- => S- .

3. Final checks
Before you switch on the device make sure you have done everything correctly in the previous steps.
  • Make sure the power is OFF while doing the cable wiring.
  • Re-check if there are no short circuits.
  • Check if the power cables are not loosely wired to the Gateway.
  • Check if the power cables are not loosely wired to the Variable Speed Drive.
  • Re-check the RS-485 twisted pair cables is correctly connected A+ => S+  and B- => S-.
4. Power on the system

Now you are ready to go, you can now switch on the Polar Gateway and the Ls S100.  

5. Configure Ls Electronics S100 Serial Parameters
In order for the Gateway to correctly communicate with the Ls Electronics S100 controller, there will need to be some changes made to the communication parameters. 

Note: It is critical to change the default settings to reflect the table below.

Serial Communication Setup

Name Description Parameter Default Required 
Communication Address Serial node address/Unit ID COM-01=Int485 St ID1 1 
Serial speed Baud rate COM-03=Int485 BaudR 3=96003=9600
Data FormatParity bit and number of stop bit COM-04=Int485 Mode0=D8/PN/S10=D8/PN/S1
Protocol Communication protocol COM-02=Int485 Proto0=Modbus-RTU0=Modbus-RTU

You may now sign in to the Polar Portal to monitor the device remotely, the button on the right will take you through a setup process.

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