Afag SE-Power FS STO Breve descrição - Página 3

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Through the use of PELV circuits, protection is provided against electric shock
(protection against direct and indirect contact) according to EN 60204-1 (Elec-
trical equipment of machines, General requirements). The 24 V power supply
used in the system must meet the requirements of EN 60204-1 for DC power
supplies (Response to voltage interruptions, etc.).
 Make sure that no bridges or like that may be used wiring in parallel to safety,
for example, by using the maximum conductor cross section of 1.5 mm ² or fer-
rules with insulating collar. Use for loop of lines between adjacent devices twin
wire end ferrules.
6.2 ESD protection
At unused connectors is a danger that by ESD (electrostatic discharge) damage
to the unit or other equipment arises. Ground the equipment from the installation
and use proper ESD equipment (eg, shoes, earth straps, etc.).
6.3 Connection [X40]
The SE-Power FS Safety Module STO has a combined interface for control and
feedback on the connector [X40].
Connector
Pin
Designation
8
0V
7
24V
6
C2
5
C1
4
0V-B
3
STO-B
2
0V-A
1
STO-A
Figure 3:
Pin assignment [X40] (Representation of the connector on
the module)
To ensure the STO "Safe Torque Off" function, the control inputs STO-A and
STO-B are on two channels to be connected in parallel wiring.
This connection may be part of an emergency stop circuit or a protective door
arrangement eg.
L230VAC
N230VAC
PE
24VDC
0VDC
S1
1
3
2
2
4
1
3
2
4
5
6
1
Afag SE-Power FS
1 Servo controller with Safety Mod-
ule (only relevant connections)
2 Emergency stop switch
Figure 4:
Connection of the SE-Power FS Safety Module STO,
Example single phase servo controller SE-Power FS
If at the moment of the commissioning of the servo controller, there's not (yet) a
safety orientated connection, the servo controller
SE-Power FS with the SE-Power FS Safety Module STO can be commissioned
with a minimal wiring according figure 4 with one emergency stop switch (2).
Do the minimal wiring of the inputs STO-A/STO-B and 0V-A/0V-B for commis-
sioning such a way that they must be forcibly removed if the final safety circuit will
be done.
Note
Safety functions should never be bridged.
short description „SE-Power FS Safety Module FSM 2.0 STO"
Value
Description
0 V
Reference potential for
auxiliary supply voltage.
+24 V DC
Auxiliary supply voltage
(24 V DC Lead through logic supply
of the servo controller).
–
Feedback contact for the status „STO"
to an external device.
0 V
Reference potential for STO-B.
0 V / 24 V
Control input B for the STO function.
0 V
Reference potential for STO-A
0 V / 24 V
Control input A for the STO function.
1
S1
2
or
S1
1
transmitter
receiver
2
9
21
1
2
7
8
9
or
S1
1
Safety
device
T1
Drawn only relevant
connections!
Without detection of shorts!
2
3 Safety door
4 Light grid
5 Safety switching device
7
Commissioning
Caution
Loss of the safety function!
Lack of safety function can lead to serious irreversible injuries, such as by in-
voluntary movements of the connected actuators.
 Only operate with the safety module:
 when installed and
 if all precautions are taken.
 Validate security function for completion of commissioning.
 Incorrect wiring, using the wrong safety module or external components, what
are not selected according to safety category, lead to loss of the safety function.
 Perform a risk assessment for your application and select the wiring and the
components accordingly.
7.1 Before commissioning
Perform the following steps to prepare the commissioning:
1.
Ensure that the safety module is installed correctly.
2.
Check the electrical installation (cable, contact assignment
 section 6). All protective earth (PE) conductors connected?
7.2 DIP switch setting
Set the DIP switches as described in the documentation for the servo controller
SE-Power FS or the fieldbus manuals.
7.3 Parameter adjustment with the Afag SE-Power ServoCommander
When detecting a change, such as replacing a module, a not acknowledgeable
error is raised. To set the application with the servo controller in operation, the
change must be "projected". This means that the change is explicitly accepted
respectively confirmed.
The acquisition of the parameters occurs in the window Safety module of the
Afag SE-Power ServoCommander.
7.4 Functional test
Note
The STO function must be validated after installation and after changes in the
installation.
This validation must be documented by the commissioner. As an aid to commis-
sioning are examples of checklists in the document "SE-Power FS STO manual".
3
8
Operation
8.1 Obligations of the operator
3
The operability of the safety function must be checked at appropriate intervals. It
is the responsibility of the operator to select the type of test and the intervals
within the specified period. The test shall be performed so that the proper function
4
of the safety device is detected in the interaction of all components.
3
8.2 Maintenance and care
The safety module is maintenance-free.
4
9
Troubleshooting and Diagnostics
9.1 Status Display
4
Mode and faults are displayed directly on the two-color LED of the safety module.
3
LED
Designation
Off
Not safe
5
= Status STO not active
Green
Not safe
4
= Status STO not active
Yellow Safe
= Status STO active
Figure 5:
Display
Figure 6.
9.2 Error Messages
The servo controller shows cyclically disturbances in the seven-segment Display
on the front panel of the servo controller.
Error messages will be with "E" (for error), a main index (xx) and a sub-index (y)
displayed, eg: E 5 1 0. Warnings have the same number, but are shown with
leading and trailing center bar, eg - 1 7 0 -.
- 3 -
Description
Safety module or servo controller has no operating
voltage.
The power stage in the servo controller for feeding
the motor can be active or inactive.
The power stage in the servo for feeding the motor is
shut down safely.
Display the safety module
Description
„H": The servo controller is in "safe state".
This is not synonymous with information about the status of the safety
function STO (Safe Torque Off). This can be read only by the status LED of
the safety module.
For the "unsafe state" no special indication is provided, it will be shown the
normal status display of the servo controller.
Seven-segment display on the servo controller
Version 1.5