
34
Operating Instructions – AC Motors DR / DV / DT / DTE / DVE / Asynchrounos Servo Motors CT / CV
8
Preliminary work for motor and brake maintenance
Inspection / Maintenance
8.2
Preliminary work for motor and brake maintenance
Removing the EV1. incremental encoder / AV1H absolute encoder
•
Remove the protective canopy [361]. If a forced cooling fan is fitted, remove it first.
•
Unscrew the screw [366] from the adapter flange and remove the cover plate [369].
•
Unscrew the clamping hub connection of the coupling.
•
Loosen the retaining screws [232] and turn the conical spring washers [251]
outwards.
•
Remove the encoder [220] together with the coupling [233].
•
Lever off the intermediate flange [236] after removing the screws [234].
Note:
During re-assembly, make sure the runout of the shaft end is
≤
0.05 mm.
Brakes for the encoder mounting must be completely replaced.
Isolate the motor and brake from the power supply before starting work,
safeguarding them against unintentional power-up!
51322AXX
51324AXX
Removing EV1. / AV1 encoders from motors up to size 225
Removing EV1. / AV1 encoders from motors from size
250 upwards
361
220
EV1.
AV1.
369
232
251
366
233
236
234
369 251 232
361
234
703
366
236
233
550
EV1.
AV1.
220
[220] Encoder
[232] Hexagon socket head cap screw
[233] Coupling
[234] Hex head screw
[236] Adapter flange
[251] Conical spring washer
[361] Protective canopy / fan guard
[366] Hexagon socket head cap screw
[369] Cover plate
[550] Brake
[703] Hex head screw