Contact expansion modules
Up to PL e of EN ISO 13849-1
PNOZ s10
Gertebild
][Bildunterschrift Kontakterweiterungen
Contact expansion module for increasing the number of available contacts
Approvals
PNOZ s10
SÜDDEUTSCHLAND
Zulassungen
Unit features
Gertemerkmale
` Positive-guided relay outputs:
– 4 safety contacts (N/O), instanta-
neous
– 1 auxiliary contact (N/C), instan-
taneous
` Safe separation of safety contacts
from all other circuits
` LED indicator for:
– Input status, channel 1
– Input status, channel 2
– Switch status, safety contacts
– Error
` Plug-in connection terminals (either
spring-loaded terminal or screw
terminal)
Unit description
Bestimmung/Gertebesch reibung Kontakter weiterungen Schalt _PNOZ
The unit meets the requirements of
EN 60947-5-1, EN 60204-1 and
VDE 0113-1. The contact expansion
module is used to increase the number
of instantaneous safety contacts available on a base unit. Base units are all
safety relays with feedback loop monitoring.
The category that can be achieved in
accordance with EN 954-1 and
EN ISO 13849-1 depends on the cate-
gory of the base unit. The contact expansion module may not exceed this.
Safety features
Sicherheitseigenschaften Kontakterweiterungen allg_PNOZ
The unit meets the following safety requirements:
` The contact expansion module ex-
pands an existing circuit. As the
output relays are monitored via the
base unit's feedback loop, the safety functions on the existing circuit
are transferred to the contact expansion module.
` The safety function remains effec-
tive in the case of a component failure.
` Earth fault in the feedback loop:
Detected, depending on the base
unit that is used.
` Earth fault in the input circuit:
The output relays de-energise and
the safety contacts open.
Block diagram
Blockschaltbild
A1 A2
=
Input
=
Power
* Safe separation in accordance with EN 60947-1, 6 kV
K1
K2
23 33 51
13
14
24 34 52
43
44
*
unit
base
Interface
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-401-2010-09
Contact expansion modules
Up to PL e of EN ISO 13849-1
PNOZ s10
Function description
][Funktionsbeschreibung_Erweiterungsgert
with PNOZsigma base unit:
` Dual-channel operation via
PNOZsigma connector
Timing diagram
without PNOZsigma base unit:
` Single-channel operation: one input
circuit affects the output relays
][Zeitdiagramm_PNOZs_Kontakterw_in_out_aux-rfk
POWER
Input
Output safe
Feedback
t1 t1t2 t2
Key
` Power: Supply voltage
` Input: Input circuits A1
Wiring
][Verdrahtung_Si_unverz_1Hi_unverz
Please note:
` Information given in the “Technical
details” must be followed.
` Outputs 13-14, 23-24, 33-34, 43-44
are safety contacts, output 51-52 is
an auxiliary contact (e.g. for display).
` To prevent contact welding, a fuse
should be connected before the
output contacts (see technical details).
` Calculation of the max. cable runs
in the input circuit:
l
max
R
lmax
=
I
max
Rl / km
R
= max. overall cable resist-
lmax
ance (see technical details)
/km = cable resistance/km
R
l
` Use copper wire that can withstand
60/75 °C.
` Sufficient fuse protection must be
provided on all output contacts with
capacitive and inductive loads.
` Output safe: Safety contacts 13-14,
23-24, 33-34, 43-44
` Feedback: Feedback loop 51-52
: Switch-on delay
` t
1
: Delay-on de-energisation
` t
2
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-401-2010-09Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
-2
Contact expansion modules
Up to PL e of EN ISO 13849-1
PNOZ s10
Preparing for operation
Betriebsbereitschaft herstellen PNOZs
` Supply voltage
Supply voltage AC DC
24 V DC
0 V
` Input circuit
Input circuit Single-channel Dual-channel
Base unit:
Safety relay PNOZ X
Base unit:
Safety relay PNOZelog
Driven via semiconductor outputs
(24 VDC)
24 V DC
0 V
O1
PNOZsigma
A1
expansion
A2
module
PNOZsigma
A1
expansion
module
A20 V
L-
PNOZsigma
A1
expansion
A2
module
` Feedback circuit
Feedback circuit Base unit: Safety relay
PNOZ X
The inputs that evaluate the feedback loop
will depend on the base unit and application
feedback
loop
` Connection to PNOZsigma base unit
Base unit: Safety relay PNOZsigma
The feedback loop is connected and evaluated via the connector
][Betriebsbereitschaft_herstellen_Info_Erweiterungsgert_DB
INFORMATION
If a base unit and a contact expander
Do not connect A1 to the contact ex-
pander module!
module from the PNOZsigma range
are connected via the connector, no
additional wiring is necessary.
51
PNOZsigma
52
expansion
module
PNOZsigma
base unit
Base unit: Safety relay PNOZelog
feedback
loop
PNOZsigma
expansion module
Interface
PNOZsigma
51
PNOZsigma
52
expansion
module
24 V DC
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-401-2010-09