Baud Rate

CHAPTER 1: INTRODUCTION

FEATURES

Baud rate: This two-position DIP switch is used to select the DeviceNet baud rate. The valid rates are 125K, 250K and 500K bits per second. The DIP switch is defaulted to 125K baud rate when shipped.

Baud Rate

DIP Switch Position

 

 

125 kbps

down - down

 

 

250 kbps

up - down

 

 

500 kbps

up - up

 

 

Changes to switch settings will not take effect until the next power cycle.

Trip Class (TC): NEMA overload trip class is selected using a rotary DIP switch. Valid settings are Class 10, 15, 20, or 30. To set the trip class, align the screwdriver slot with the desired value. Do not use the triangle marker on the DIP switch. A screwdriver with a nominal blade width of 0.094 to 0.175 inches should be used. Smaller blades could allow the switch to be set in an invalid position.

Changes to switch settings will not take effect until power is cycled.

Display

Liquid crystal display: four lines of 16 characters per line.

Status

The status sub-menu can display current, motor status, Run 1 and Run 2 data, faults, MAC ID, baud rate, and overload class.

Reset

The relay can be reset from the PDU, pushbutton, or the LAN.

Mounting Flexibility

The relay can be attached to the PDU without hardware to facilitate door mounting.

LEDS

One green LED power indicator and a flashing red trip LED to indicate over/undercurrent, current unbalance, ground fault, under/overvoltage, and trip command.

CONFIG

The relay parameters are programmed via the CONFIG button. The CONFIG sub-menu is similar to the status menu, and allows the user to change relay parameters: CT ratio, PT ratio, fault settings, and time delays.

History

Displays the last ten (10) trip records. The conditions at the time of fault are displayed and can be scrolled through using the UP/DOWN arrow keys.

849713A3.CDR

FIGURE 1–2: LM10 Features

LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL

1–5

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GE LM10 Changes to switch settings will not take effect until power is cycled, Baud Rate, DIP Switch Position