Leroy-Somer E27 Series, Установка и обслуживание

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These detectors are equipped with a red LED that indicates the status:
- Brake blocked: LED remains on.
-
Brake released: LED remains off.
Connection of mechanical detectors:
The connection diagram for the detectors is the following:
Fig. 22
5 OPERATIONAL CHECK:
Caution: Risk of the lift falling.
Run the brake. The mobile plates will be attracted by the brake casing, releasing the disc, and
allowing movement of the machine axle.
Immediately disconnect the brake if you should observe:
- The brake produces a loud noise during connection/disconnection.
- The axle does not turn freely once it has been released.
Consult section 8: “ POTENTIAL FAILURES” .
6 MAINTENANCE:
EVO brakes have been designed to function free of maintenance. In any case, we recommend
checking the following points:
Operation How often?
Air-gap
verification
Six monthly
Detector verification Annually
Winding verification Annually
Table 6
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Every intervention must be carried out by authorised personnel who
are in possession of this manual.
During maintenance work, ensure that the braking mechanism is in
standby mode and there is no risk of accidental starting up.
It is compulsory to carry out the assembly and disassembly of the
encoder following the manufacturer’s instructions.
Do not damage cables during maintenance operations.
These devices are designed to work in dry conditions. The friction
sides must be totally free of oil, grease or abrasive dust that might
alter their characteristics.
6.1 Air-gap verification:
Under normal operations, gearless machine brakes only carry out static braking, except for
emergency stops. That is why under normal working conditions there should be no wearing of the
brake.
In order to check the air-gap , the brake being blocked (braking), insert the measuring gauges
between the mobile plates and the brake casing. An excessive air-gap could lead to the
electromagnet not being able to release the brake. Faced with this circumstance the brake disc
must be replaced (section 7.1).
Fig. 23
6.2 Detector verification:
Mechanical detectors ( micro-switches ) are mounted on the brakes, when
connecting/disconnecting the brake you must alternate the status discontinuity/continuity between
the detector cables.