Hitachi L100 Manual do Utilizador descarregar pdf (Página 114)

L100 Inverter

Operations

and Monitoring

4–23

The alarm output terminals are connected as shown below (left) by default, or after

initialization. The contact logic can be inverted as shown (below right) by using the

parameter setting C33. The relay contacts normally open (N.O.) and normally closed

(N.O.) convention uses “normal” to mean the inverter has power and is in Run or Stop

Mode. The relay contacts switch to the opposite position when it is in Trip Mode or

when input power is Off.

N.C. contacts (after initialization) N.O. contact (inverted by C33 setting)

During normal running When an alarm occurs

or power is turned off

During normal running

or power is turned off

When an alarm occurs

AL0 AL1 AL2 AL0 AL1 AL2 AL0 AL1 AL2

AL0 AL1 AL2

Contact Power

Run

State

AL0-

AL1

AL0-

AL2

N.C.

(after

initialize,

C33=01)

ON Normal Closed Open

ON Trip Open Closed

OFF – Open Closed

Contact Power

Run

State

AL0-

AL1

AL0-

AL2

N.O.

(set

C33=00)

ON Normal Open Closed

ON Trip Closed Open

OFF – Open Closed

Technologies Inc.

Toll Free: voice: 1-877-539-2542 fax: 1-800-539-2542 www.mgitech.com

Technologies Inc.

Toll Free: voice: 1-877-539-2542 fax: 1-800-539-2542 www.mgitech.com

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