Pilz PNOZ s6 Data Sheet
Two-hand relays
InputInput
A1 A2 S21 S22
=
Power
Feed-
back
(Reset)
S34
S11 S12
=
Y32
(~)*
K1
K2
13
23 33
24 34
14
41
42
Interface
expansion
unit
( )*
Up to PL e of EN ISO 13849-1
PNOZ s6
Gertebild
][Bildunterschrift_Zweihand
Two-hand control unit for press controllers and safety circuits
Approvals
PNOZ s6
Zulassungen
Unit features
Gertemerkmale
Positive-guided relay outputs:
– 3 safety contacts (N/O), instanta-
neous
– 1 auxiliary contact (N/C), instan-
taneous
1 semiconductor output
Connection options for:
– 2 operator elements (buttons)
A connector can be used to con-
nect 1 PNOZsigma contact expansion module
LED indicator for:
– Supply voltage
– Input status, channel 1
– Input status, channel 2
– Switch status, safety contacts
– Feedback circuit
– Error
Plug-in connection terminals (either
spring-loaded terminal or screw
terminal)
Unit description
][Gertebeschreibung_Zweihand
The two-hand control relay meets the
requirements of EN 574 Type IIIC. It
forces the operator to keep his hands
outside the danger zone area during
the hazardous movement. The unit is
suitable for use on controllers for metalworking presses as a component for
simultaneous switching.
It can be used in applications with
Mechanical presses (EN 692)
Hydraulic presses (EN 693)
Safety circuits in accordance with
EN 60204-1
Safety features
][Sicherheitseigenschaften_Zweihand
The two-hand control relay meets the
following safety requirements:
The circuit is redundant with built-in
self-monitoring
The safety function remains effec-
tive in the case of a component failure
The circuit prevents a further press
stroke in the case of:
– Relay failure
– Contact welding
– Coil defect on a relay
– Open circuit
– Short circuit
Sicherheitseigenschaften Zusatz - Sicherung DC_PNOZ
The unit has an electronic fuse.
Block diagram
* only when UB = 48 – 240 VAC/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
Blockschaltbild
Zusatz WSNT
1001973-EN-03-2011-08
Two-hand relays
POWER
Feedback loop
Output safe
Button 1
t0 t1 t2 t3 t3 t1
Button 2
Out semi
Output aux.
t1
R
lmax
Rl / km
I
max
=
Up to PL e of EN ISO 13849-1
PNOZ s6
Function description
][Funktionen_Zweihand
The two-hand control relay must be
activated by simultaneously press-
Timing diagram
Key
POWER: Supply voltage
Button 1/Button 2: Input circuits
S11-S12, S21- S22
Feedback loop: Feedback loop S34
Output safe: Safety outputs 13-14,
23-24, 33-34
ing two buttons within 0.5 s. If one
or both of the buttons are released,
the unit interrupts the control command for the hazardous movement.
][Zeitdiagram_Zweihand_aux_semi
Output aux: Auxiliary contacts 41-
42
Out semi: Semiconductor output
switch status Y32
: Recovery time after power on
t
0
: Simultaneity, channel 1 and 2
t
1
Reactivation: The output relays will
not re-energise until both operator
elements have been released and
then re-operated simultaneously.
: Operating cycle ended through
t
2
button 1 or 2
: S34-S12 must be closed before
t
3
before the button is operated (recovery time)
Shaded area: Status irrelevant
Wiring
][Verdrahtung_Si_unverz_1Hi_unverz
Please note:
Information given in the “Technical
details” must be followed.
Outputs 13-14, 23-24, 33-34 are
safety contacts, output 41-42 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
= 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.
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
1001973-EN-03-2011-08Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
-2
Two-hand relays
A1
L
A2
N
S22
A1
L+
A2
L-
S12(+)
S11
S21
S22(-)
S1
S2
K5
K6
K5
L1
N
K6
S12
13 (23,33)
S34
14 (24,34)
Y32
PLC Input
S22
Gnd
Up to PL e of EN ISO 13849-1
PNOZ s6
Preparing for operation
Betriebsbereitschaft herstellen PNOZs
Supply voltage
Supply voltage AC DC
Input circuit
Input circuit Single-channel Dual-channel
Two-hand button
with detection of shorts across contacts
Feedback loop
Contacts from external contactors
Semiconductor output
Key
S1/S2 Two-hand button
Feedback loop
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
1001973-EN-03-2011-08
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