Start-Up; Repair; Temperature Sensor; Disassembly, Assembly Of Gear Encoder Gel 244 - Siemens 1PM4 101 Instructions Manual

Assembly requirements
- Proper installation is the responsibility of the manufacturer of the
system / machine.
- Connect the motor according to the wiring diagram in the terminal
box, and observe the data on the rating plate while doing so.
- Connecting leads must be suitable for the type of application and
for the anticipated currents and voltages.
- If the motor is supplied by means of converters , high-frequency
current and voltage harmonics in the motor supply leads can
cause electromagnetic interference to be emitted.
Use shielded power and signal lines.
Observe the EMC instructions of the converter manufacturer.
- The connecting leads are to be equipped with the strain relief
device and the devices which protect against rotation and
transverse forces, and must be prevented from kinking.
Power terminal
CAUTION
Warning of motor damage!
Connecting the motor directly to a three-phase system
will destroy it.
Motors may only be driven with configured converters.
Ensure that the phase sequence is correct.
The gear encoder and temperature sensor are
electrostatically endangered components (EEC).
Do not touch the connections with your hands or with
tools which could be electrostatically charged!
1. The ends of the leads must not be stripped further than
necessary, i.e. the insulation must extend to the
cable lug, terminal or wire-end sleeve.
2. Match the cable lugs or wire-end sleeves to the dimensions of
the terminal board connections and to the cross-section of the
power cable, lay parallel connecting leads if necessary.
3. The cable lugs of the power terminals must rest directly on the
cable lugs of the motor winding.
4. Connect the PE conductor.
5. The inside of the terminal box must be kept clean and free from
cable residues and moisture.
6. For permanently secure joints, the screws and bolts of the
electrical connections (except the terminal blocks) must be
tightened to the torques specified in fig. 7.
7. The minimum air gaps specified in fig. 6 must be observed, both
when connecting and when re-arranging internal connecting
leads. Maintain minimum air gaps of 5.5 mm from live, non-
insulated parts. Avoid protruding wire ends.
8. Any entries which are not in use must be sealed dust and water-
tight, and the sealing elements must be screwed in firmly and
tightly.
9. Check the seals and sealing surfaces of the terminal box to
ensure that the degree of protection is maintained.
Pulse encoder and temperature sensor
Connect with contact pins via the flanged socket fitted in the
terminal box.
4

Start-up

Thermal hazard from hot surfaces!
The surface temperatures of the motors may
exceed 80 o C (176
surfaces! Protection must be provided
against accidental contact if necessary.
Temperature-sensitive components (electric
lines, electronic components) must not
touch hot surfaces.
Checks before starting up
1. Turn the rotor by hand, the rotor must not grind.
2. Check the mounting of the motor and its alignment.
3. Check the direction of rotation in the uncoupled state.
Siemens AG
WARNING
o F). Do not touch hot
ENGLISH
4. Check the suitability and setting of the output elements for the
intended conditions of use.
5. Check the electrical connections: Design, tightening torques
according to specification.
6. Check the PE conductor connection.
7. Check the functional condition of the auxiliary devices present.
8. Check the protection against accidental contact with moving and
live parts.
9. Check that the cooling water circulates at the specified flow
rate.
NOTE
The limit speed n
permissible peak operating speed. Higher speeds are not
permitted.
Carry out further checks if necessary.
If deviations from normal operation occur, e.g. increased
temperature, sound emission or vibrations, switch the motor off and
find the cause. Consult the manufacturer or SIEMENS service
center if necessary. Do not disable the protective devices, even in
trial operation. The motor cooling must be in continual operation.
5

Repair

NOTE
Maintenance (replacement of the encoder or bearing)
may only be performed by the manufacturer or
authorized SIEMENS service centers.
5.1

Temperature sensor

Electric shock hazard!
Observe all the instructions in section 3.4.
Switch off all additional and auxiliary circuits
when isolating.
Do not reverse these measures until the
maintenance has been completed and the
motor has been completely assembled.
If the temperature sensor fails, one can switch to the reserve
temperature sensor. Switch over in the terminal box, paying
attention to the wiring diagram in the terminal box.
5.2 Disassembly, Mounting the Encoder
Damage to the encoder. Encoder systems with integrated
electronics and temperaturesensors are electrostatically
endangered components.Do not touch the connections with
your hands or with toolswhich could be electrostatically
charged!
Observe the following additional requirements:
- Ground the work place.
- Touch a conductive, grounded object before making contact.
An electrostatic charge must not be transferred on contact.
- Do not touch the plug pins directly.
- Use suitable packaging, e.g. corrugated cardboard boxes or
conductive plastic bags (not ordinary plastic bags or
polystyrene).
Disassembly (Fig.2)
1. Remove the GAMMA ring (6.96) or in the case of L37 balancing
disc. Mark the position!
2. Unscrew the screws (6.97) and remove the cover (6.83)
together with seal or O-ring.
3. Mark the position of the encoder wheel (8.50) on the shaft.
4. Remove the encoder wheel with a suitable tool.
5. In the terminal box, remove the shrink tubing from the adapter
plug, disconnect the adapter plug from the encoder lead.
(see rating plate) is the maximum
max
D A N G E R
WARNING
5