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5.6 EDM connection (External Device Monitoring)
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IS1
IS2
ST ••3••••
O3
OS1
OS2
IS1
IS2
ST ••3••••
O3
OS1
OS2
IS1
IS2
O3
ST ••5•••• / ST ••9••••
EDM
OS1
OS2
K1
K2
5.7 Interfacing
Connections with CS AR-08•••• safety modules
Input configuration with monitored start
2 channels / Category 4 / up to SIL 3 / PL e
5-pole versions
A1
A2
ST
OS2
A1
S12
S33
S52
CS
S35
S21
S22
S34
A2
Connections with CS AR-05•••• / CS AR-06•••• safety modules
Input configuration with manual start (CS AR-05••••) or monitored start (CS AR-06••••)
2 channels / Category 4 / up to SIL 3 / PL e
5-pole versions
A1
A2
ST
OS1
OS2
A1
S12
S52
CS
S21
S22
S34
A2
Connections with CS AT-0••••• / CS AT-1••••• safety modules
Input configuration with monitored start
2 channels / Category 4 / up to SIL 3 / PL e
5-pole versions
A1
A2
ST
OS1
OS2
S12
S31
S33
A1
CS
S35
S21
S22
S34
A2
Connections with CS MF••••0, CS MP••••0 safety modules
The connections vary according to the program of the module
Category 4/ up to SIL 3 / PL e
5-pole versions
A2
A1
A1
ST
ST
OS1
OS2
OS1
OS2
Ixx
Ixx
Ixx
Ixx
CS
For certain specific applications, as an
alternative to connection to safety mod-
ules, it is possible to use the ST ••5••••
or ST ••9•••• articles with check of the
NC contacts of the forcibly guided re-
lays (K1, K2) connected to the EDM in-
put, installed as the last sensor in the
cascade.
8-pole versions
A1
IS2
A2
ST
OS2
S33
A1
S52
CS
S35
S21
S22
S34
A2
8-pole versions
A1
IS1
IS2
A2
ST
OS1
OS2
A1
S12
S52
CS
S21
S22
S34
A2
8-pole versions
A1
IS1
IS2
A2
ST
OS1
OS2
S12
S31
S33
A1
CS
S35
S21
S22
S34
A2
8-pole versions
A2
A2
A1
IS1
IS2
A1
IS1
ST
ST
OS1
OS2
OS1
Ixx
Ixx
Ixx
CS
Connections with external contactors (EDM versions only)
A1
IS1
IS2
A2
ST ••5•••• / ST ••9••••
EDM
OS1
OS2
K2
K1
Connections with Pizzato Elettrica expansion modules (e.g. CS ME-03••••)
5.8 Operating states
rection.
The predefined sensor operating states (OFF, RUN, ERROR, SET) are indicated by
a constantly lit LED.
LED illumination sequence
GN
YE
TQ
VT
RD
If an ERROR event is identified, the LED cycles between continuous light corresponding
to the ERROR state (see Table 1) with one of the illumination sequences listed in Table
2, each of which corresponds to a different message type.
LED illumination sequence
RD
RD
RD
RD
RD
RD
RD
YE
If a WARNING event is identified, the LED cycles between continuous light
corresponding to the current operating state (see Table 1) with the corresponding
illumination sequence listed in Table 3.
LED illumination sequence
RD
RD
RD
YE
YE
YE
GN
A2
IS2
YE
OS2
Ixx
Legend:
GN = green
BU = blue
WARNING events are generally reversible. ERROR events are not reversible:
the device does not recover from the error, but must be switched off, and the cause of
the error resolved prior to switching back on.
If multiple ERROR or WARNING events are present at the same time, the highest
priority error only is indicated. For example, where both a temperature warning and a
voltage warning are present, only the temperature signalling sequence is indicated;
the voltage warning sequence is indicated only once the temperature warning is no
longer active, i.e. the temperature exits the alert threshold.
8/30
Articles ST ••5•••• and ST ••9•••• must
be connected to contactors with forcibly
guided output contacts, as shown in the
adjacent diagram. When connected in
this way, the sensor can be classified
as a control circuit device up to PDF-M
(EN 60947-5-3)
Caution: if all OS safety outputs
are connected directly to a safety contac-
tor, we recommend using fast switching
diodes connected in parallel to the con-
tactor coils.
(only ST ••5••••, ST ••9•••• versions)
A1
IS2
ST ••5•••• / ST ••9••••
EDM
OS2
A2
EDM
EDM
OS2
Pizzato Elettrica
CS ME-03••••
expansion module
A2
The sensor has a multicolour signalling LED,
which, through the use of illumination, flash-
ing, and colour sequences, indicates the
various device operating states to the user,
as well as any warnings or errors affecting
internal electronic components.
The LED can be seen on both sides of the
sensor, regardless of device installation di-
Sensor
state
Sensor off.
OFF
Normal operating state with safety outputs on. No
RUN
pending error or warning.
Normal operating state with safety outputs off. No
RUN
pending error or warning.
Normal operating state with detected actuator and
RUN
safety outputs off. No pending error or warning.
NOTE: for versions with multitag programming only.
New actuator acquisition state.
SET
Internal device error state.
ERROR
Table 1: Predefined operating states
Sensor
Description
state
ERROR
Temperature error: the sensor temperature is
RD
outside permitted limits.
ERROR
Voltage error: the sensor supply voltage is
RD
outside permitted limits.
ERROR
Short circuit between the safety outputs OS1
RD
and OS2.
Table 2: ERROR messages
Sensor
Description
state
WARNING
Temperature warning: the sensor temperatu-
re is close to permitted limits.
WARNING
Voltage warning: the supply voltage is close
to permitted limits.
WARNING
No signal at the inputs IS1 and IS2.
WARNING
Inputs IS1 and IS2 inconsistent.
WARNING
The actuator is in the detection limit area.
Table 3: WARNING messages
RD = red
YE = yellow
VT = purple
TQ = turquoise
Description
Prio-
rity
9
8
7
Prio-
rity
6
5
4
3
2
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