Pilz PNOZ s9 Data Sheet
Safe timer relay/contact expansion modules
up to PL e of EN ISO 13849-1
PNOZ s9
Gertebild
Bildunterschrift
Contact expander module for increasing the number of available contacts,
Pulse-on timer relay for step-by-step
control of movement sequences,
Delay-on energisation timer for unlocking an interlock with delay,
Shutdown of application with delay-on
de-energistaion, controlled stop
Approvals
PNOZ s9
SÜDDEUTSCHLAND
Zulassungen
Unit features
Gertemerkmale
` Positive-guided relay outputs, ei-
ther instantaneous, delay-on deenergisation (also retriggerable),
pulsing or delay-on energisation:
– 3 safety contacts
– 1 auxiliary contact
` Safe separation of safety contacts
17-18, 27-28, 37-38 from all other
circuits
` Switch-on time, pulse time or de-
lay-on de-energisation selectable
` LED for:
– Supply voltage
– Input status, channel 1
– Input status, channel 2
– Switch status channel 1/2
– Reset circuit
– Errors
` Plug-in connection terminals (either
spring-loaded terminals or screw
terminals)
Unit description
Gertebeschreibung
The unit meets the requirements of
EN 60947-5-1, EN 60204-1 and
VDE0113-1. In conjunction with a base
unit the unit is used as a
` Contact expansion module to in-
crease the number of contacts
available on a base unit. Base units
are all safety relays with feedback
loop monitoring.
` Pulse relay
– In accordance with
EN ISO 12100-1 and
EN ISO 12100-2 (inching circuit
for limited movement of hazardous machine components during
installation, set up and positioning)
– in safety circuits in accordance
with VDE 0113 and EN 60204-1
(e.g. on movable guards)
` Safe timer relays
– in accordance with EN 1088 (re-
lease with delay through timer)
– in safety circuits in accordance
with VDE 0113-1 and EN 60204-
1 (e.g. on movable guards)
The category that can be achieved in
accordance with EN 954-1 and
EN ISO 13849-1 depends on the category of the base unit. The contact expansion module may not exceed this.
` The unit can also be used without a
base unit as a pulse relay or safe
timer.
The unit is designed for use with
` Safety relays from the PNOZ X,
PNOZsigma, PNOZelog,
PNOZmulti series
` Safety gate monitors from the PST
series
` Two-hand relays from the
PNOZsigma, P2HZ series
Safety features
][Sicherheitseigenschaften_Kontakterweiterung_mit_RFK
The unit meets the following safety requirements:
` The unit monitors its own output
contacts.
` The safety function remains effec-
tive in the case of a component failure.
` Earth fault in the feedback loop is
detected.
` Earth fault in the input circuit:
The output relays de-energise and
the safety contacts open.
Sicherheitseigenschaften Zusatz - Sicherung DC_PNOZ
` The unit has an electronic fuse.
NSG-D-2-400-2010-08
Safe timer relay/contact expansion modules
up to PL e of EN ISO 13849-1
PNOZ s9
Block diagram
Blockschaltbild
A1 A2
][Blockschaltbild_nur sichere Trennung
S32
17
27
37
*
45
=
Input
=
Power
Reset
S34
*Safe separation in accordance with EN 60947-1, 6 kV
Function description
Funktionsbeschreibung
` Delay-on de-energisation, not re-
triggerable
If the supply voltage at the input circuit is interrupted, the safety contacts will open once the set release
time has elapsed, even if the safety
function is cancelled during the delay time. The unit cannot be reactivated until the delay time has
elapsed.
` Delay-on de-energisation, retrig-
gerable
(only possible as a standalone application or with the PNOZsigma
base unit!)
If the supply voltage at the input circuit is interrupted, the safety contacts will open once the set release
time has elapsed.
If the safety function is cancelled
during the delay time (e.g. safety
gate closed), the unit will remain active.
` Pulse on switching on
The safety contacts close when
supply voltage is applied, the feedback loop is closed and finally the
input circuit is closed. The safety
contacts are reopened once the
pulse time has elapsed.
If the input circuit is opened for
more than 10 ms during the pulse
time, the safety contacts will open
immediately and the auxiliary contact will be closed.
` Delay-on energisation
The set delay time is started when
supply voltage is applied, the feedback loop is closed and finally the
input circuit is closed.
If the input circuit and feedback
loop are closed once the delay time
has elapsed, the safety contacts
will close and the auxiliary contact
will be opened.
If the input circuit is opened for
more than 10 ms, the safety contacts will open immediately and the
auxiliary contact will be closed.
Funktionsbeschreibung_Erweiterungsgerät
with PNOZsigma base unit:
` Dual-channel operation via
PNOZsigma connector
with other base units or without base
unit:
` Single-channel operation: one input
circuit affects the output relays
K1
K2
18
28 38 46
unit
base
Interface
NSG-D-2-400-2010-08
-2
Safe timer relay/contact expansion modules
up to PL e of EN ISO 13849-1
PNOZ s9
Timing diagrams
Delay-on de-energisation, not retriggerable
Zeitdiagramm
1 2
POWER
Input
Output safe
Output aux.
Feedback
Key
` Power: Supply voltage
` Input: Input circuit S32
` Output safe: Safety contacts 17-18,
27-28, 37-38
` Output aux: Auxiliary contact 45-46
t1 tv
` Feedback: Feedback loop S34
: Switch-on delay
` t
1
: Delay time
` t
v
tvt1
` c: Delay-on de-energisation with
the time t
` d: No retriggering in the time t
v
v
Delay-on de-energisation, retriggerable
Zeitdiagramm
Key
` Power: Supply voltage
` Input: Input circuit S32
` Output safe: Safety contacts 17-18,
27-28, 37-38
` Output aux: Auxiliary contact 45-46
` Feedback: Feedback loop S34
: Switch-on delay
` t
1
` tv: Delay-on de-energisation
: Overall delay time
` t
ges
` c: Delay-on de-energisation with
the time t
v
` d: Retriggering in the time tv for
overall delay-on de-energisation
t
ges
POWER
Input
Output safe
Output aux.
Feedback
1 2
t1 tv
tv
tges
tv
t1
NSG-D-2-400-2010-08
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