Schneider TeSys D LR97D25 Handleiding

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W9 1636662 01 A03

02 - 2011

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www.schneider-electric.com

A

B

DANGER

HAZARD OF ELECTRIC SHOCK,

EXPLOSION, OR ARC FLASH

Disconnect all power before servicing

equipment.

Failure to follow these instructions

will result in death or serious injury.

LR97Dppp

0.3 - 1.5 A

1.2 - 7 A

5 - 25 A

20 - 38 A

Relay setting range

LR97D015

LR97D07

LR97D25

LR97D38

Type

Power

supply

(1) Select function by dip switch:

b dip switch 1: 1 phase / 3 phase

b dip switch 2: Manual / Auto reset

Available for 3 phase utilisation only (Dip SW on "3P" position)

Combined signals from red and green LEDs indicate

motor status including trip causes.

Condition

LED Signal (Pulse Chart)

Green LED

On

On

On

Off

Off

Off

Off

Off

Off

Off

On

Red LED

Power on

Starting

Steady state

Overloading

Overcurrent

Trip

Locked rotor

Phase

Loss

L1

L2

L3

2T14T26T3

A1A298NONC9596

Test/Stop

Reset

Relay output

Green LED

(LED OK)

Load

O-Time

D-Time

Red LED

(LED OL)

PLEASE NOTE:

b Electrical equipment should be installed, operated,

serviced, and maintained only by qualified personnel.

b No responsibility is assumed by Schneider Electric

for any consequences arising out of the use of this

material.

b This document is also available in French, Spanish,

Italian, German, and Chinese for download on our

website at www.schneider-electric.com.

Operating and Function

b LR97D, solid state overload relay, compares motor

current with preset load current threshold (LOAD).

b Three phase motor currents are monitored through

three internal current transformers.

b D-Time counts down and is only available for

motor starting.

During steady state, if motor current is greater than the current setting (overloaded), LR97D

switches its contacts after O-Time.

In case of phase failure and locked rotor, trip delay time is 3 s and 0.5 s respectively.

b For shear-pin (mechanical shock) protection, set O-Time knob to its minimum in order to trip in 0.2-0.3 s.

Product specificaties