6
Electrical installation
6.1 Safety instructions
During installation, the requirements of EN 60204-1 must be fulfilled.
Warning
Danger of electric shock in case of voltage sources without
safety measures.
• Use only PELV (protective extra-low voltage) circuits to EN 60204-1 for the
electric logic supply.
Also observe the general requirements for PELV power circuits to EN 60204-1.
• Only use power sources which guarantee reliable electrical isolation of the
operating voltage to EN 60204-1.
Protection against electric shock (protection against direct and indirect contact) is
guaranteed in accordance with EN 60204-1 by using PELV circuits (electrical
equipment of machines, general requirements). The 24 V power supply unit used
in the system must satisfy the requirements of EN 60204-1 for DC power supply
(behaviour during power interruptions, etc.).
Make sure that no jumpers or the like can be inserted parallel to the safety
wiring, e.g. through the use of the maximum wire cross section of 1.5 mm² or suit-
able wire end sleeves with insulating collars. Use twin wire end sleeves for looping
through lines between neighbouring devices.
ESD protection
With non-assigned plug connectors, there is a danger that the device or other
parts of the system may be damaged as a result of ESD (electrostatic discharge).
Earth the system parts prior to installation and use suitable ESD equipment
(e.g. shoes, earthing straps, etc.).
6.2 Connection [X40]
The CAMC-G-S1 safety module has a combined interface for control and acknow-
ledgement via the plug connector [X40].
Plug
Pin Designation
Value
Description
8
0V
0 V
Reference potential for auxiliary power supply.
7
24V
+24 V DC
Auxiliary power supply (24 V DC logic supply of
the motor controller carried out).
6
C2
–
Acknowledgement contact for the status “STO”
on an external controller.
5
C1
4
0V-B
0 V
Reference potential for STO-B.
3
STO-B
0 V / 24 V
Control port B for the function STO.
2
0V-A
0 V
Reference potential for STO-A.
1
STO-A
0 V / 24 V
Control port A for the function STO.
Fig. 3
Pin allocation [X40] (representation of the plug connector on the module)
To ensure the STO “Safe Torque Off ” functions correctly,, the control ports STO-A
and STO-B are to be connected in two channels with parallel wiring.
This interface can be part of an emergency stop circuit or a protective door
arrangement, for example.
1
2
3
4
5
L 230 V AC
N 230 V AC
PE
24 V DC
T1
Festo CMMP-AS-C…-3A-M3
1 2 7 8 9
L1
PE
+2
4V
GN
D
24
V
N
-X9
21
9
DI
N
4
DI
N
5
-X1
1
3
2 4
ST
O
-A
ST
O
-B
0V
-B
0V
-A
-X4
0
Out
put
PL
C:
Out
put
s
ta
g
e
e
n
a
ble
Out
put
PL
C:
Con
tr
olle
r
e
n
a
ble
Only the relevant connections are drawn!
Without cross-circuit detection!
0 V DC
5 6
C1
C2
In
put
PL
C:
S
a
fe
ty
a
ck
n
ow
le
dg
me
n
t
T
1
S1
sender
Receiver
O
SSD
1
O
SSD
2
S1
S1
S1
Safety coupling
switch device
1
3
2
4
1
3
4
2
1
3
4
2
1
3
4
2
or
or
1
Motor controller with safety
module (only relevant
connections)
2
Emergency stop switch
3
Protective door
4
Light curtain
5
Safety switch device
Fig. 4
Connection of the safety module CAMC-G-S1, example of single-phase
motor controller CMMP-AS-C...-3A-M3
If a safety-oriented interface is (still) not present, the switch module
CAMC-DS-M1 should be used.
If no micro switch module is available or for the initial commisionning of the motor
controller without safety equipment, the motor controller CMMP-AS-…-M3 with
the safety module CAMC-G-S1 can be equipped with an emergency stop switch (
2
) with minimum wiring as per Fig. 4.
Carry out the minimum wiring of the inputs STO-A/STO-B and 0V-A/0V-B for the
initial commissioning so that it will be forcibly removed when the final protection
circuitry is carried out.
Note
Safety functions must never be bypassed.
7
Commissioning
Warning
Loss of the safety function!
Lack of the safety function can result in serious, irreversible injuries, e.g. due to
uncontrolled movements of the connected actuators.
• Operate the safety module only:
– in a built-in condition and
– when all safety measures have been implemented.
• Validate the safety function to complete commissioning.
Incorrect circuitry, use of an incorrect safety module or external components
that were not selected corresponding to the category, result in loss of the safety
function.
• Carry out a risk evaluation for your application and select the circuitry and com-
ponents accordingly.
7.1 Before commissioning
Perform the following steps to prepare for commissioning:
1. Ensure that the safety module is correctly mounted.
2. Check the electrical installation (connecting cable, pin allocation
Section 6).
Are all protective earth conductors connected?
7.2 DIL switch setting
Set the DIP switches as described in the hardware documentation
GDCP-CMMP-AS-M3-HW-... or the fieldbus-specific documentation.
7.3 Parameterisation with FCT
At initial commisionning or when being changed for another module type (CAMC-
DS-M1 or CAMC-G-S3), a fault that cannot be acknowledged is triggered. Acknow-
ledgment of the fault takes place through confirmation of the module change with
the help of the parameterisation software. In the case of a pure module replace-
ment (identical type), an entry is generated in the permanent diagnostic memory.
7.4 Performance test
Note
The STO function must be validated after the installation and after changes to
the installation.
This validation must be documented by the person performing commissioning.
To help you with commissioning, you can find sample checklists in the docu-
mentation GDCP-CAMC-G-S1-... on the CD accompanying the motor controller.
8
Operation
8.1 Obligations of the operator
The operational capability of the safety equipment must be checked at adequate
intervals. It is the responsibility of the operator to choose the type of check and
time intervals in the specified time period. The check must be made in a way that
proves proper functioning of the safety equipment in interaction with all compon-
ents.
8.2 Maintenance and care
The safety module does not require any maintenance.
9
Diagnostics and troubleshooting
9.1 Status indicators
LED
Designation
Description
Off
Not safe
= STO status not active
Safety module or motor controller has no operating
voltage.
Green
Not safe
= STO status not active
The power output stage in the motor controller for
supply of the motor can be active or inactive.
Yellow
Safe
= STO status active
The power output stage in the motor controller for
supply of the motor is switched off safely.
Fig. 5
LED display on the safety module
Display
Description
“H”: The motor controller is in the “safe status”.
This does not mean the same thing as the information about the status of
the safety function STO (Safe Torque Off ). This can only be read off on the
status LED of the safety module.
No special display is intended for the “unsafe status”; the normal status
displays of the motor controller are represented.
Fig. 6
7-segments display on the motor controller
