6.6
Mounting accessories
Requirement
–
No collision with mounting and sensor components in the movement space of
the attachment component.
Function
–
Protection against uncontrolled overtravel of the end positions.
–
Referencing to reference switch or end position.
–
Query of end positions or intermediate positions.
–
Prevention of hard impacts at the end positions.
–
Prevention of contamination in the slots.
1. Select accessories
2. Mount the sensor (reference or query):
–
Mount sensor rail or mounting kit.
–
Align sensor and mount it at the switching position.
–
Fasten cable.
Instruction manuals
Sensor bracket EAPM
Mounting via profile groove
–
It is not possible to mount the sensor bracket
on the side in the area of the guide housing.
–
Protect the sensor from external magnetic or
ferritic influences, e.g. min. 10 mm distance
to slot nuts.
–
Preferably use hardware limit switches with
N/C contact function to guarantee protection
in the event of a sensor failure.
Instruction manual
Tab. 8: Overview of sensor mounting
Connecting sealing air
The use of sealing air at approx. ± 0.02 MPa (± 0.2 bar, ± 2.9 psi) reduces or
prevents subsequent contamination:
–
The application of negative pressure minimises the release of abraded particles
into the environment.
–
The application of overpressure reduces the penetration of dirt into the
drivetrain.
Fig. 2: Mounting fitting
1. Remove the filter element from the threaded hole.
2. Mount the screw fitting and connect the hose.
Size
32
45
60
Thread
M5
G 1/8
G 1/4
Max. screw-in depth
[mm]
5
7
7
Max. tightening torque
[Nm]
1.4
5
8
Tab. 9: Information on sealing air connection
7
Commissioning
7.1
Safety
WARNING
Risk of injury due to unexpected movement of components.
• Protect the positioning range from unwanted intervention.
• Keep foreign objects out of the positioning range.
• Perform commissioning with low dynamic response.
7.2
Commissioning procedure
Block-shaped acceleration profiles without jerk limitation can have the following
effects:
• High mechanical loads on the lead screw due to high force peaks.
• Overshooting effects during positioning.
• Rise of the entire system.
Recommendation: reduce high force peaks in the acceleration and deceleration
phases by using the jerk limitation.
When the motor is removed, the motor encoder loses its absolute reference to the
reference mark, e.g. by turning the motor drive shaft.
• Carry out a homing run every time the motor is mounted in order to establish
the absolute reference between the motor encoder and the reference mark.
Running noises during operation
Identically constructed axes can generate different running noises depending on
the parameterisation, mode of operation, type of mounting, installation environ-
ment and components.
Requirement
–
Mounting of the drive system is checked.
–
Installation and wiring of the motor is checked.
–
No foreign objects in the movement space of the drive system.
–
Maximum permissible feed force and drive torque not exceeded as a function
of acceleration, deceleration (e.g. stop function, quick stop), velocity, moving
mass and mounting position.
–
Cylinder not mechanically overloaded and dynamic setpoint deviation not
exceeded due to force peaks and torque peaks or overshoot effects, e.g. over-
running the end position.
Limit overloads and overruns by jerk limitation, reduced acceleration and decel-
eration setpoints or optimised controller settings.
–
Control run and homing with reduced setpoint values for speed, acceleration
and deceleration.
–
No test run to mechanical end stops.
–
Software end positions ≥ 0.25 mm away from the mechanical stops.
Steps
Purpose
Note
1. Check
travel
Determine the direc-
tion of travel of the
piston rod
–
Direction of movement of piston rod, clockwise spindle:
–
Retracting: rotate drive shaft clockwise.
–
Advancing: rotate drive shaft anti-clockwise.
–
The direction of movement of the piston rod for positive
and negative position values depends on the mounting
position of the motor on the cylinder, e.g. parallel or axial
kit.
–
Set a required reversal of direction of rotation via param-
eters in the servo drive or controller.
2. Homing
Determination of
the reference point
and adjustment of
the dimensional ref-
erence system
–
during the initial
start-up proce-
dure
–
after replacement
of the motor
Permissible reference points:
–
towards reference switch:
Travel at reduced velocity
–
towards end position:
do not exceed maximum values
Additional information
è
Instruction manual of the drive
3. Test run
Checking the oper-
ating conditions
Check application requirements:
–
Piston rod runs through the complete travel cycle in the
specified time.
–
The piston rod stops travel when a limit switch or soft-
ware end position is reached.
After a successful test run, the drive system is ready for operation.
Tab. 10: Commissioning steps
Size
32
45
60
Max. stop velocity
[m/s]
0.01
Max. stop energy
[mJ]
3.6
12
24
Calculation of the maximum stop energy
•
!"
=
$
%
2 &m +
'
(
'
)
*
–
v = max. stop velocity
–
m = mass of all linear moving components
–
J
R
= mass moment of inertia of all rotating compo-
nents
–
J
L
= mass moment of inertia per kg payload
Tab. 11: Speed and energy at the end positions
8
Operation
WARNING
Risk of injury due to unexpected movement of components.
• Protect the positioning range from unwanted intervention.
• Keep foreign objects out of the positioning range.
• Perform commissioning with low dynamic response.
Lubrication run during operation
Observe the following lubrication travel intervals.
• With working stroke less than 2 x spindle pitch ...P:
• Perform a lubrication run within 10 travel cycles with a minimum stroke of
≥ 2 x spindle pitch.
9
Maintenance
9.1
Safety
WARNING
Unexpected movement of components.
Injury due to impacts or crushing.
• Before working on the product, switch off the control and secure it to prevent it
from being switched back on accidentally.
