Baumuller DA 100 - 5 Inspection and Maintenance; Inspection

Malfunction Cause Remedy
Running noises
Foreign bodies in the motor
Bearing damage
Repairs carried out by motor
manufacturer
Repairs carried out by motor
manufacturer
Temperature rise in the
motor
Motor temperature
monitoring unit trips
Drive overload
Brake does not release
sufficiently: grinding brake
Water cooling not active.
Coolant supply inadequate
- Filter heavily contaminated
- Deposits in the
cooling channels
- Faults in the external cooling
system
Check motor load and compare
with nameplate
Have repair checked by motor
manufacturer and involve him if
necessary
Check and switch on if
necessary
Check water circuit
- Check, and clean if necessary
- Check, and clean if necessary
- Follow plant supplier’s
instructions
Overpressure in the
cooling system
Heavily soiled coolant
Cooling channels blocked
Malfunctions in the external
cooling system
Filter coolant
Check and, if necessary, clean
Follow plant supplier’s
instructions
5 Inspection and maintenance
Working on the electric motor:
Work must not be carried out on the electric motor until the motor has come to a
standstill, is electrically isolated, de-pressurized and has cooled down. All
connections, such as screws on the motor that were loosened must be tightened
again after the inspection and maintenance work.
When carrying out work on the motor, please observe the technical instructions and
notes in the respective sections in these Commissioning and Maintenance
Instructions.
When carrying out maintenance work, observe all safety instructions which also apply
to the commissioning of the motor (see Section. 4.1).
Attention: if the optional holding brake is fitted, this brake must not perform a safety
function during work on the motor (e.g., retaining loads)!
5.1 Inspection
Depending on the severity of soiling on site, cleaning will have to be carried out regularly to
guarantee the continuous adequate dissipation of heat. The flow rate and the pressure ratio of the
cooling system must be checked.
If an optional brake is fitted, wear limits are specified (e.g., maximum permissible operating air
gap, maximum number of emergency braking operations). The actual degree of wear on the brake
must be checked at regular intervals. When the permissible wear limits have been reached, the
brake must be replaced (see Section 5.2).
If an optional shaft sealing ring is used, it must be checked at regular intervals to ensure it is
functioning correctly (leakage).
TAM 00612 18
DA 100 – 280 W 06 / 2011
Three-phase synchronous motor water-cooled English