Startup and operation
MRS/MMSE/ARS/TPM
en-24
5022-D002420
Revision: 11
6.1.3 Shock
For the maximum permissible shock load (brief acceleration), the limit values are valid in
compliance with DIN EN 60721-3-3:1995 and DIN EN 60068-2-27:2009.
6.1.4 Chemical resistance
Before startup, determine the chemical resistance of the motor against possible residual fluids/
gases in order to avoid premature failure.
6.1.5 Holding brake
The following instructions apply exclusively to
electrical
holding brakes.
If the motor is equipped with a holding brake, ensure that this brake is vented during startup,
and that the motor is never operated with the brake applied.
The brake is applied in a currentless state. Control of the brake is performed by the
customer using the regulating device. Technical data on the brake can be found on the
identification plate, in the technical documentation (5098-…) as well as the signal list
(5085-…).
A holding brake is no safety brake, as defined by DIN EN 13849-1 or by the German
BGHM regarding hanging axes (only available in German), and is therefore not intended to
be used as a brake for the protection of persons or as a dynamic brake.
The brake may not be used
- to prevent the counter-rotation in case of a counter-current braking,
- as a safety against a faultily set rotational direction,
- as emergency stop.
Running in the holding brake
The holding brake may no longer reach the specified holding torque M
4
due to the effects of
storage, conditions or type of use, overvoltage or high temperature, combined with ambient
conditions (soiling, humidity, etc.).
To restore the holding power, perform the run-in procedure described by the brake
manufacturer.
- Apply the brake briefly for a defined time (at the specified speed of the motor and for a
defined number of runs) and then release it again.
- Or, drive the motor against the applied brake for a defined number of revolutions at a
specified speed.
For additional information and for correct data on the grinding-in process, contact our sales
department. Always provide the ordering code and serial number.
Commissioning the holding brake
To make sure the holding brake is functioning, it has to be tested during startup.
If the regulating device has a function for integrated testing of the holding torque during secure
limited movement and secure limited speed, then use this function and observe the
instructions from the regulating device's manufacturer.
If no such function is present, we recommend that the user proceeds as follows:
Limit the permitted range of movement and the maximum speed using the parameters in the
regulating device so that no danger to persons or property can arise from movement of the
axle.
Direction Maximum permissible shock load (11 ms)
axial
10 m/s
2
radial
150 m/s
2
Tbl-9: Limit values for shock load
