500
400
300
200
100
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
t (µs)
Typical inrush current (A)
4.0
7 V Us
8 V Us
12 V Us
Figure 1: Configuring the switch-on current
Ensure that the supply voltage to the motor feedback system’s DSL
female contact (10) is from +7 V ... +12 V.
4
Mounting
This chapter describes the mounting of the safe motor feedback system.
NOTE
Depending on the motor design, it may be necessary to perform the electrical
installation before the mechanical mounting.
NOTE
If the safe motor feedback system has to be removed, the mounting steps are
to be carried out in reverse order.
NOTE
No impacts or shocks are permitted during the mounting of the motor feed‐
back system.
NOTE
To minimize and avoid any pollution of the encoder the mounting shall be
done in one step. During storage time the cap (7) has to be pressed slightly
on the encoder.
4.1 Safety
WARNING
Note the following safety notes for the side fixing screws (2) and cone fixing
screw (1) used during mounting:
•
Permissible surface pressure from engine plate > 200 MPa.
•
The material of motor shaft must have a minimum tensile strength of
530 MPa.
•
Thread holes according to DIN 13 with counterbore according to DIN 76
min. 1.05 x diameter of thread.
•
Minimum strength class of 8.8.
•
The screw-in depth must be at least 5 thread turns; select screw lengths
appropriate for the installation conditions.
•
The tightening torque applies if there is already a thread in the motor
end plate. If there is no thread, the additional rolling torque depending
on the material of the motor end plate and on the drill diameter for the
fixing screw (2) must also be taken into account.
•
Secure screw connections from loosening using screw adhesive. Spring
washers and toothed washers are not sufficient for securing screws.
WARNING
Note the following safety notes for the accessory screw (1) used during
mounting:
•
No additional screw locking device is required for the screw (1)
4093779.
•
The screw (1) 4093779 must not be used after the use-by date due to
its coating.
•
Only use the screw (1) 4093779 one time. After removing the motor
feedback system:
°
Clean the residue off of the affected threads on the drive shaft.
°
Use a new (unused) screw on the thread during the remounting
process.
•
As the material, surface condition, and precise dimensions of the
female thread of the motor shaft have not been ascertained, control
tests must be carried out to ensure the connection is suitable for series
production.
•
The female thread of the motor shaft must be free of dirt, grease and
burrs. A thread tolerance of 6H must be ensured. For the geometry of
the thread, see the mounting suggestion (taper of the thread infeed in
line with mounting suggestion).
•
Mount the screw in one movement and without axial feed.
•
Cure time: 6 hours at room temperature. Final strength after 24 hours.
4.2 Mounting procedure
Block the customer’s drive shaft.
1.
Carefully remove the cover (7) from the encoder (12). If necessary, undo the
Torx T08 screw (8) using a screwdriver.
2.
Carefully push the encoder (12) onto the motor shaft.
3.
Turn the encoder (12) until the holes in the stator coupling (11) are posi‐
tioned over the motor’s mounting holes.
4.
Pre-mount and tighten the screw (1) 4093779. Tightening torque:
3.1 ± 0.3 Nm.
5.
Attach the stator coupling (11) to the motor end plate by alternately tighten‐
ing 2 M3 screws (2). Tightening torque: 0.8 ± 0.08 Nm.
1
5
2
9
3
4
6
2
ß
à
7
8
á
â
Figure 2: Mounting/removing the conical shaft
1
Cone fixing screw (M4X48, Torx T15), 4093779
2
M3 fixing screw
3
Temperature sensor cable
4
DSL cable
5
Temperature sensor female connector
6
DSL male connector
7
Cap (red: multi turn, green: single turn)
8
Cap fixing screw (Torx T08)
9
Temperature male connector
ß
DSL female connector
à
Spring plate stator coupling
á
Encoder
â
Shielding connection
5
Electrical installation
WARNING
Observe the following points in relation to electrical installation of the
EDS35-2 / EDM35-2 motor feedback system.
•
To connect the sensors, refer to the corresponding mounting instruc‐
tions for the external drive system or for the higher-order control system.
•
Never establish or remove electrical connections to the motor feedback
system with the voltage switched on, since that could result in a faulty
device.
•
Make sure the affected machines/systems are in a de-energized state
during mounting.
5.1 Shielding connection
NOTE
A suitable encoder shield connection to the ground or to the motor shield is
required for a smooth operation. The encoder is connected to the motor hous‐
ing via the screws (2).
8022479 /14FB/2019-06-19/de, en, es, fr, it
EDS35-2.../EDM35-2... | SICK
6
