Spring−Operated Brakes; Maintenance Operations; Motor - Lenze m500-P Series Operating Instructions Manual

8 Maintenance/repair

Maintenance operations

Spring−operated brakes
8.2.3 Spring−operated brakes
To ensure safe and trouble−free operation, spring−applied brakes must be checked and
maintained at regular intervals. Servicing can be made easier if good accessibility of the
brakes is provided in the plant. This must be considered when installing the drives in the
plant.
Primarily, the necessary maintenance intervals for industrial brakes result from the load
during operation. When calculating the maintenance interval, all causes for wear must
be taken into account, ((¶ 46). For brakes with low loads such as holding brakes with
emergency stop, we recommend a regular inspection at a fixed time interval. To reduce
the cost, the inspection can be carried out along with other regular maintenance work
in the plant if necessary.
If the brakes are not maintained, failures, production losses or damage to the system
may occur. Therefore, a maintenance concept adapted to the particular operating
conditions and brake loads must be defined for every application. For the spring−applied
brakes, the maintenance intervals and maintenance operations listed in the below
table must be provided. The maintenance operations must be carried out as described
in the detailed descriptions.
Type Service brake
Spring−applied brake ¯ according to service life
¯ otherwise every six months
¯ after 4,000 operating hours at the
8.3 Maintenance operations
8.3.1

Motor

(
Stop!
¯ Make sure that no foreign bodies can enter the inside of the motor!
¯ Do not remove plugs when voltage is being applied!
}
Danger!
¯ Only work on the motor when it is deenergised!
¯ Hot motor surfaces of up to 140 °C. Observe cooling times!
¯ Remove loads acting on motors or secure loads acting on the drive!
44
calculation
latest
Holding brake with emergency stop
¯ at least every two years
¯ after 1 million cycles at the latest
¯ provide shorter intervals in the
case of frequent emergency stops
Lenze ¯ BA 33.0008 ¯ 5.0