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2<br />
Squirrel-cage motors<br />
Technical information<br />
Modular technology<br />
■ Brakes (continued)<br />
The brake can also be supplied<br />
for other <strong>voltage</strong>s.<br />
Brake connection <strong>voltage</strong>:<br />
24 V DC Order Code C00<br />
2x 400 V AC Order Code C01<br />
Order Codes C00 and C01 must<br />
only be used in conjunction with<br />
Order Code G26.<br />
Rating plate<br />
The motors have a second rating<br />
plate with the brake data on<br />
the opposite side of the motor.<br />
Connection<br />
The motors are fitted with an additional<br />
terminal box next to the<br />
main terminal box which is used<br />
for the brake connection.<br />
KFB brakes are equipped with a<br />
standard rectifier bridge or halfway<br />
rectifier. Special connections<br />
are not required. Optimal<br />
operating times are achieved<br />
without special circuitry.<br />
Mechanical manual release<br />
The brakes can be released<br />
manually with screws as standard.<br />
The brakes can be supplied<br />
with a mechanical manual<br />
release using an actuator lever.<br />
Order Code K82.<br />
2/54<br />
Siemens M 11 · 2003/2004<br />
Other characteristics of the KFB<br />
brake<br />
High IP65 degree of<br />
protection.<br />
Corrosion-resistant in seawater<br />
and in the tropics.<br />
This brake is a dynamic brake,<br />
not simply a holding brake.<br />
For this reason, there is less<br />
wear, especially in the case of<br />
emergency stops (commissioning).<br />
High wear reserves; repeated<br />
stepless air gap readjustment<br />
possible. This results in very<br />
long downtimes and <strong>low</strong> service<br />
and operating costs.<br />
The function and wear can be<br />
monitored with a microswitch<br />
and proximity switch. Microswitch<br />
on/off is standard<br />
for LG motors. Optionally an<br />
anti-condensation heating.<br />
Fully functional brake for enclosure<br />
acceptance test. Visual<br />
inspection of brake possible<br />
during operation.<br />
The brake (air gap) can be adjusted<br />
in the workshop, for example,<br />
and mounted to the<br />
motor without further adjustments.<br />
The working parts can be replaced<br />
without great outlay.<br />
After the housing has been<br />
opened (three screws), it is<br />
easy to replace the friction lining<br />
carrier. It is not necessary<br />
to disassemble the entire<br />
brake.<br />
1 Armature disk<br />
2 Compr. springs<br />
3 Axially sliding<br />
friction lining carrier<br />
4 Hub<br />
5 Shaft<br />
6 Opp. frict.surface<br />
7 Solenoid coil<br />
Design of the KFB brake<br />
%<br />
" ! #<br />
Half-wave rectifier 400 V AC<br />
,<br />
8 , 8<br />
<br />
$<br />
# "<br />
Rectifier bridge 230 V AC<br />
, ,<br />
, "<br />
8<br />
, !<br />
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Brake connection with 24 V DC <strong>voltage</strong><br />
L+ L-<br />
M1-5179<br />
8
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