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Technical Manual delphi series motors rev.14
page 27 of 74
Serie Delphi AT..
I motori autofrenanti serie Delphi ATDC,
AT24,
ATTDe
ATTD24
prevedono
l’impiego di freni a pressione di molle
alimentati in corrente continua, calettati
saldamente su uno scudo in ghisa nella
parte posteriore del motore. AT24 e
ATTD24 sono dotati di freni a 24V per
poter essere alimentati direttamente dalle
separate uscite24V di cui la maggior parte
degli inverter sono dotati.
Si possono effettuare due tipi diversi di
regolazione per i motori ATDC e AT24.
Regolazione del traferro S
Per un corretto funzionamento, il traferro
S tra l’elettromagnete
7
e l’ancora
mobile
1
dev’essere compreso tra i
seguenti valori:
Motore tipo
traferro S (mm)
63~71
0.20~0.30
80~100
0.40~0.50
112~280
0.50~0.60
La regolazione si effettua agendo sulle
bussole
filettate
controllando
mediante spessimetro che si sia raggiunto
il valore di traferro desiderato.
Regolazione della coppia frenante
Si ottiene agendo sui grani di regolazione
9
.
La coppia frenante è già regolata
dalla motive sul valore massimo e si
consiglia di non variarla
AT.. Delphi series
Delphi ATDC, AT24, ATTD and ATTD24
series self-braking motors use one or 2
spring-pressure brakes, firmly spliced
onto a cast iron shield at the back of the
motor.
On AT24 and ATTD24, the 24Vdc single
or double brakes are designed to be
directly connected to an inverter (usually
having a 24Vdc plug).
Two different types of adjustment are
possible for motors ATDC and AT24
S air gap adjustment
For proper operation, the air gap S
between electromagnet
7
and the
mobile armature
1
must be between the
following indicated limits:
Motor type
S air gap (mm)
63~71
0.20~0.30
80~100
0.40~0.50
112~280
0.50~0.60
The adjustment is made by using the
threaded bushes
, using a thickness
gauge to make sure that the wished air
gap is reached..
Braking torque adjustment
The braking torque can be increased by
tightening the adjuster screws
9
. The
setting has already been made by motive
at the max value, and therefore we
suggest to not to intervene on it
.
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