Operating instructions

Mechanical and electrical design

0301

Relays

The FL model employs seven relays. The relays

control:

• the wash windings of the wash motor

• the distribution windings of the wash motor

• the extraction motor

• the drain cycle

• the restart after a programmed stop

• the switching back to low speed extraction if too

high unbalance is indicated.

Construction

The body of the relay holding the stationary

contacts is made of current-resistant plastic. A

solenoid and a contact bank hold the moving

contacts. The contacts are spring-loaded to assure

the correct contact pressure.

The relay is constructed for continuous operation,

whether mounted horizontally or vertically.

Screw-type terminals provide perfect connections

even when one or two wires have different

diameters.

Operation

When the solenoid is energized, the two halves of

the magnet core are drawn together, pulling down

the moving contacts, thus making or breaking the

circuit. When the current cuts out, springs force

the contact bank into its original position, thus

closing or opening the circuits.

Trouble shooting

If the relay fails to operate despite power to the

coil, turn off the power and check the solenoid by

measuring the resistance across the terminals (1).

If the relay hums when power is applied, this

indicates either a break in the insulator holding the

moving contacts at the axle where it holds the top

half of core (3) or a rusty core (4), which can be

cleaned.

Make sure that the moving contact assembly

moves freely. Always replace burnt or pitted

contacts (2) ... do not reuse contacts.

Fig.