SICK EKS36-2 Serie Instrucciones De Funcionamiento página 5

2.4 General safety instructions and protective measures
WARNING
Observe the following to ensure the safe use of the EKS36-2 / EKM36-2 safe
motor feed back system as intended.
The national and international legal specifications apply to the installa‐
tion and use of the EKS36-2 / EKM36-2 safe motor feedback system,
to its commissioning and to technical inspections repeated at regular
intervals, in particular:
° the machinery directive 2006 / 42 / EC
° the use of work equipment directive 2009 / 104 / EC
° the accident prevention regulations and safety regulations
° and any other relevant safety regulations
The manufacturer and operator of the machine on which the EKS36-2 /
EKM36-2 safe motor feedback system is used are responsible for coor‐
dinating and complying with all applicable safety specifications and reg‐
ulations, in cooperation with the relevant authorities.
The manufacturer of the drive system connected must have complied
with the safety requirements for the drive system design described in
the implementation manual, "HIPERFACE DSL® Safety".
These operating instructions must be made available to the operator
of the machine on which the EKS36-2 / EKM36-2 safe motor feedback
system is used. The machine operator must be instructed by skilled
personnel and read the operating instructions.
2.5 Associated documents
"HIPERFACE DSL ® " interface manual, order number 8017595, as of
12.2021 (or newer)
"Hiperface DSL ® " implementation manual, order number 8017596, as of
12.2021 (or newer)
2.6 Maintenance and repair
The EKS36-2 / EKM36-2 safe motor feedback system is maintenance-free.
It is not designed to be repaired if defective.
Please contact us if you have any complaints.
2.7 Disposal
Always dispose of unusable or irreparable devices in accordance with the
applicable specific national waste disposal regulations.
NOTE
We will be glad to assist you in the disposal of these devices. Please
contact us.
3 Product description
Type EKS36-2 / EKM36-2 encoders are motor feedback systems predestined for
the dynamic and precise operation of servo-control circuits, due to their equip‐
ment.
The overall system, consisting of encoder, evaluation system, servo inverter and
motor, forms a control circuit. Actual values for commutation, rotational speed,
direction of rotation and position are derived from the encoder signals. Encoder
systems of the EKS36-2 / EKM36-2 series are suitable for use in function chains
of safety-related machine functions.
The sensor signals are transferred to the evaluation system via HIPERFACE DSL
interface. In combination with a drive system of category 3 (EN ISO 13849),
SILCL2 (EN 62061) or PL d (EN ISO 13849), the motor feedback system is
suitable for safety applications. For position and speed-based safety functions of
the drive, the motor feedback system meets the requirements in EN 61800-5-2.
4 Assembly
WARNING
Observe the following for assembly of the EKS36-2 / EKM36-2 safe motor
feedback system.
Switch off the power of all affected machines / units during the assem‐
bly process.
Make sure to avoid any blows or impact to the shaft under all circum‐
stances, to prevent damage to the ball bearings.
For EKS36-2 / EKM36-2 encoders with tapered shaft the shaft end of
the motor may only have a diameter of 12 mm max.
4.1 Preparation for mounting
Degrease the drive shaft and the shaft of the motor feedback system.
4.1.1 Required tools / parts
The assembly tool BEF-MW-EKX36 (part no. 2060224) is required for mounting or
removing. Two DIN cheese-head / oval-head screws M3 are required for assembly.
4.1.2 Generally Applicable Notes
Using the torque support for the motor feedback system, the housing must be
correctly seated in the customer's flange arrangement.
The more precise the centering for the motor feedback system, the less the angle
and shaft offset during assembly and the less load on the bearings of the motor
feedback system.
EMC considerations make it mandatory to connect the housing and / or the
encoder to earth. For the EKS36-2 / EKM36-2 with tapered shaft, this is provided
by the torque support.
8020309/1JUA/2023/06/14/de, en, fr, it, es
WARNING
Shielding connection
To ensure trouble-free operation, it is imperative to ensure suitable shield
connection of the motor.
4.2 Assembling the motor feedback system
see figure 4
Block customer's drive shaft to prevent rotation.
The hexagonal part (1) of the encoder shaft (2) must be engaged in the
recess of the fixing plate (3) of the torque support (4). Place the assembly
tool (5) on the back of the encoder and engage in the recesses of the
encoder housing (6). Using the hexagonal part (7) of the assembly tool (5),
screw the encoder into the drive shaft. Screws (8) must not hook into the
fixing holes of the motor.
Tightening torque: 4 Nm + 0.8 Nm.
WARNING
Observe the tightening torque!
Compliance with the tightening torque attains an oversizing of the fric‐
tion-lock shaft connection that justifies the supposition of fault exclu‐
sion in regard of a "break in the motor / encoder shaft connection".
WARNING
Safety instruction!
Make sure that assembly work is only performed and documented by
appropriately i nstructed and trained personnel.
Release the drive shaft and rotate the encoder until the holes in
the fixing plate (3) are positioned over the fixing holes of the motor
flange. Alternately tighten the fixing plate (3) with 2 M3 screws (8)
on the motor flange. This releases the encoder shaft.
Fastening torque: 0.8 Nm ± 0.08 Nm.
Attention!
° The internal thread in the motor shaft must be free of burrs and dirt.
° The taper must be free of dirt and grease.
Max. torque for the tapered shaft thread, before the taper is seated:
°
0.8 Nm.
Dismantling:
Block customer's drive shaft to prevent rotation.
Open the cover (12) using a screwdriver if necessary (Fig. 4). Remove
the connector fitted with the set of strands (9 + 10) volt-free
Remove the 2 M3 screws (8). The fixing plate (3) is to be positioned
in such a way that the screw holes are aligned with the torque support
(4). Turn the encoder by hand until fixing plate (3) engages. Place
the assembly tool (5) on the back of the encoder and engage in the
recesses of the encoder housing (6). Using the hexagonal part (7) of
the assembly tool (5), detach and remove the encoder from drive shaft.
5 Electrical installation
WARNING
Observe the following for electrical installation of the EKS36-2 / EKM36-2
safe motor feedback system.
®
To connect the sensors, refer to the corresponding operating instruc‐
tions for the external drive system or for the higher-order control system.
The supply voltage has to be generated by PELV systems (EN 50178).
The motor feedback system corresponds to protection class III according
DIN EN 61140. If the supply voltage is not generated by the PELV
systems, other measures must be found that will guarantee that mains
supply voltage parts are safely separated
Never establish or remove electrical connections to the motor feedback
system with the power connected, since that could result in a faulty
device.
5.1 Interface connection
Open the cover (12) using a screwdriver if necessary (Fig. 4). Engage the
connector (9) fitted with the set of strands (10), volt-free, in the connector
socket (11) of the encoder.
Close the cover (engage in the recess of the encoder housing (6)).
The engagement by clicking must be clearly felt or heard. May be difficult to
close with your bare hands. Use tools if necessary.
1 2 3 4
Figure 1: In-line plug connection, 4-pin
2-pin interface PIN assignment
PIN and conductor assignment EKS36-2J / EKM36-2J / EKS36-2K / EKM36-2K
PIN
1
2
3
4
Signal Cable color (cable outlet)
n. c. –
+U / DSL+ gray
S
GND / DSL– green
housing cable shield
EKS/EKM36-2 | SICK 5