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5.4 Replacement of the actuator
Attention: The machine manufacturer must restrict access to the sensor
programming mode to authorised personnel only.
Via input I3 it is possible to replace the coded actuator with a second actuator at any
time. This operation is repeatable an unlimited number of times. After programming
has been completed, the sensor will recognise only the actuator code corresponding
to the last executed programming operation.
1) Make certain that the device is supplied with rated voltage.
2) With the first actuator not inserted and unlocked, activate programming input I3 by
applying voltage U
(see section TEChNICAL DATA). The device sets to the program-
e1
ming mode and the IN LED flashes orange; it disables all OS1, OS2, O3, O4 outputs.
3) With the I3 input enabled, insert the second actuator. Acquisition of the second
actuator is confirmed by the IN LED switching off and by four flashes of the ACT LED.
4) Deactivate input I3. The device will automatically set to restart and the first actuator
will no longer be recognised.
The second actuator must be suitably fixed to the guard as described in paragraph
INSTALLATION INSTRUCTIONS.
This operation must not be carried out as a repair or maintenance operation. If the
device ceases to function correctly, replace the entire device and not just the actuator.
5.5 Reset input
The following error states due to a failure external to the device can be rest using the
I3 input:
- a short circuit or overload of safety outputs (OS1, OS2),
- a short circuit between a safety output and the supply voltage,
- an excessive misalignment between the device and the locked actuator.
5.6 Series connection with safety modules
It is possible to install multiple cascade-connected devices, up to a maximum of 32
units, whilst maintaining safety category 4 / PL e according to EN ISO 13849-1 and
integrity level SIL CL 3 according to EN 62061.
Check that the PFh
value and MTTF
d
of devices and the entire safety circuit meet the requirements of the SIL/PL level
requested by the application.
Application example with single channel
locking function of the actuator
+ Vcc
VN NG-F3•
IS1
IS2
NG
I4
OS1
OS2
VN NG-F3•
IS1
IS2
NG
I4
OS1
OS2
VN NG-F3•
IS1
IS2
NG
I4
OS1
OS2
Ixx
Ixx
CS
Monitoring function - actuator locked: 2
channels / Category 4 / up to SIL 3 / PL e
Control for locking function of the actuator:
1 channel / Category 2 / up to SIL 2 / PL d
When connecting the devices in series as described above, observe the following:
- Connect the inputs of the first device in the chain to the supply voltage.
- The OS1 and OS2 safety outputs of the last device in the chain must be connected
to the safety circuit of the machine.
- Where a safety module is used, check that the properties of safety outputs OS1/
OS2 are compatible with the safety module inputs (see paragraph INTERFACING).
- Respect the stray capacitance limits on the output lines indicated in the electrical
data (see paragraph TEChNICAL DATA).
- Check that the response time of the cascade meets the requirements of the safety
function to be implemented.
- The activation time of the cascade must be calculated taking into account the re-
sponse time of every single device.
5.7 Operating states
PWR
IN
OUT
ACT
LOCK
LED
LED
LED
LED
LED
-
-
-
-
-
GN/
GN/
GN/
GN/
GN/
RD bl
RD bl
RD bl
RD bl
RD bl
GN
-
-
GN
GN
GN/
GN
-
OG bl
RD
GN
bl
GN
GN
GN
GN
GN
GN
GN
GN
GN
GN
GN
GN
GN
GN
GN
OG
OG
GN
GN
value of the system consisting of the cascade
d
Application example with dual channel
locking function of the actuator
+ Vcc
VN NG-F3•
IS1
IS2
NG
OS1
OS2
VN NG-F3•
IS1
IS2
NG
OS1
OS2
VN NG-F3•
IS1
IS2
NG
OS1
OS2
Ixx
Ixx
Ox
CS MP
CS AM
CS FS
Monitoring function - actuator locked: 2 chan-
nels / Category 4 / up to SIL 3 / PL e
Control for locking function of the actuator:
2 channels / Category 4 / up to SIL 3 / PL e
EDM
State
Description
LED
(a)
-
OFF
Device switched off.
GN/
POWER
Internal tests upon activation.
RD bl
ON
GN
RUN
Safety inputs of the device not active.
RUN
Activation of safety inputs.
Safety inputs incoherence. Recommended
RUN
action: check for presence and/or wiring
of inputs.
Incoherence of solenoid activation inputs
IE1, IE2.
RUN
Recommended action: check for presence
and/or wiring of inputs.
Actuator in safe area. O3 signalling output
RUN
active.
Actuator in safe area and locked; O3 and
-
RUN
O4 outputs active.
Mode 1
Activation of safety inputs IS1, IS2. Actuator
-
RUN
in safe area and locked. O3, O4, OS1 and
OS2 outputs active.
Mode 2
Activation of safety inputs IS1, IS2. Actuator
-
RUN
in safe area. O3, OS1 and OS2 outputs
active.
Mode 3.
Actuator present, guard closed and locked,
-
RUN
IS1 enabled, IS2 disabled, OS1 enabled,
OS2 disabled
GN
GN
GN
GN
-
RD
-
RD
-
bl
GN
GN
GN
GN
-
- = off
bl = blinking
(a) = available in NG 2•••5••• version only
5.8 Interfacing
Connections with CS AR-08•••• safety
Input configuration with monitored start
A1
A1
S21
S22
IE1
IE2
Connections with CS AT-0••••• / CS
AT-1••••• safety modules
Input configuration with monitored start
IE1
IE2
IE1
A1
IE2
OS1
OS2
A1
S21
S22
EDM connection
Caution: if all OS safety outputs are
connected directly to a safety contactor,
we recommend using fast switching diodes
connected in parallel to the contactor coils.
A1
NG 2•••5•••
OS2
6 INSTRUCTIONS FOR PROPER USE
6.1 Installation
Attention:Installation must be carried out by qualified staff only. The OS1 and
OS2 safety outputs of the device must be connected to the safety circuit of the
machine. The signalling outputs O3 and O4 are not safety outputs and may not be
used individually in a safety circuit to determine safe state of guard closed.
- Do not stress the device with bending and torsion.
- Do not modify the device for any reason.
- Do not exceed the tightening torques specified in the present manual.
- The device carries out an operator protection function. Any inadequate installation or
tampering can cause serious injuries and even death, property damage, and economic
losses.
- These devices must not be bypassed, removed, turned or disabled in any other way.
- If the machine where the device is installed is used for a purpose other than that speci-
fied, the device may not provide the operator with efficient protection.
- The safety category of the system (according to EN ISO 13849-1), including the safety
10/30
OG
GN
-
-
RUN
RD
ERROR
bl
RD
-
-
-
ERROR
bl
-
-
-
-
ERROR
-
-
-
-
ERROR
-
GN
RUN
GN
GN
GN
-
RUN
RD
-
-
-
ERROR
bl
= indifferent
Connections with CS AR-05•••• / CS
modules
Input configuration with manual start (CS
AR-05••••) or monitored start (CS AR-06••••)
IS2
A2
NG
OS2
A1
S52
S33
CS
S21
S35
S34
A2
Connections with CS MF••••0, CS
The connections vary according to the program
IS2
A2
NG
A1
OS2
S33
S31
CS
Ixx
S35
S34
A2
Connections with expansion module CS
A2
EDM
Mode 3.
Actuator present, guard closed and not
locked, IS1 and IS2 enabled, OS1 disabled,
OS2 enabled
Error on safety outputs. Recommended
action: check for any short circuits between
the outputs, outputs and ground or outputs
and power supply, then restart the device.
Actuator detection error. Check the physical
integrity of the device and, in case of
failure, please replace the entire device. If
undamaged, realign the actuator with the
device and restart the device.
Internal error. Recommended action: restart
the device. If the failure persists, replace
the device.
Temperature error outside the permissible
range
EDM signal active (external relay off)
a
EDM signal not active (external relay on)
a
Error in the EDM
function
a
AR-06•••• safety modules
A1
IS2
A2
NG
OS2
S52
CS
S22
S34
A2
MP••••0 safety modules
of the module
A2
IS2
A1
IS2
A2
NG
NG
OS2
OS2
Ixx
Ixx
Ixx
CS
ME-03••••
For NG 2•••5••• devices only
with mode 1 or 2
A1
IS2
NG
I5
OS2
A2
OS2
EDM
CS
A2
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