Lenze MDSLS Servo spindle motor - Manual (Page 34)

Maintenance/Repair
Maintenance operations
Adjustment of resolver for synchronous servo motors
9

34 BA 33.0003 EN 1.0
9 Maintenance/repair
9.1 Maintenance intervals
ƒ The motors are generally maintenance-free, except for the lubrication of the spindle.
ƒ Wear occurs only at bearings, spindles and seals.
– Check spindle, bearings for running noises (no later than approx. 15,000 h).
ƒ To avoid overheating, regularly remove the deposit build-up on the drives.
ƒ It is recommended to regularly perform an inspection after approx. 50 operating
hours. This allows for early identification and removal of irregularities or faults.
9.2 Maintenance operations

Stop!
ƒ
Ensure that no foreign bodies can enter the inside of the motor!
ƒ Perform all work at the drive system only in the de-energised state!
ƒ
Separate drives from the electrical supply!
ƒ Hot motor surfaces, up to 140 °C. Observe cooling times!
ƒ
Remove the load from the motors or secure loads acting upon the drive!
ƒ Do not pull the plug if the machine is active!
ƒ
Check the bellows for correct seating!
9.2.1 Adjustment of resolver for synchronous servo motors
The resolver from Lenze is adjusted so that the faultless operation is ensured without
adjustment at the drive controller.
If the resolver is twisted, e.g. through working on the motor, you must readjust it or
perform a rotor adjustment at the drive controller.
ƒ For the
rotor adjustment
, the motor must turn without load at the drive controller
(see the operating instructions of the drive controller). The rotor adjustment is stored
at the drive controller and applies only to the respective combination of motor and
drive controller.
ƒ
Resolver adjustment
1. Release brake, if necessary, clear motor shaft end.
2. Connect resolver to controller and determine the current rotor angle (see Operating
Instructions of Controller).
3. Allow DC current (< I
N
of motor) to flow from phase V (positive connection) to phase
W (negative connection), phase U is without current.
4. Turn resolver stator so that the controller shows rotor angle ”0”.
5. Secure the resolver stator in this position.
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