Pilz PNOZ 1-2 Data Sheet
Emergency Stop Relays, Safety Gate Monitors
Category 4, EN 954-1
PNOZ 1-2
Technical Details PNOZ 1-2
Electrical Data
Supply Voltage AC: 24, 48, 110, 120, 230 V
DC: 24 V
Tolerance 85 ... 110 %
Power Consumption £ 3.5 W/6 VA
Voltage and Current at the Input and, 24 VDC, 50 mA
Reset Circuits and Feedback Control Loop
Switching Capability in accordance with
EN 60947-4-1, 10/91 AC1: 240 V/6 A/1500 VA
400 V/3,75A/1500 VA
DC1: 24 V/4A/100 W
EN 60947-5-1, 10/91 AC15: 230 V/5 A; DC13: 24 V/4A
(DC13: 6 cycles/min.)
Output Contacts 3 safety contacts (N/O)
Emergency stop relay and safety
gate monitor in accordance with
VDE 0113-1, 11/98, EN 60204-1,
12/97, IEC 204-1, 11/98 and
VDE 0116.
Features
l Dual-channel operation with or
without detecting shorts across
the input contacts
l Approved in accordance with
VDE 0116 (burner technology)
l Monitored manual or automatic
reset can be selected
l With diverse relays
Contact Fuse Protection 6 A quick or 4 A slow
(EN 60947-5-1, 10/91)
Times
Delay-on Energisation Max. 250 ms
Delay-on De-energisation Max. 50 ms
Recovery Time Approx. 0.3 s
Simultaneity channel 1/2 Approx. 140 ms
Max. Supply Interruption before Approx. 35 ms
De-energisation
Mechanical Data
Torque Setting on Connection Terminals 1.2 Nm (screws)
Maximum Cross Section of 2 x 2.5 mm
External Conductors Single-core or multi-core
Dimensions (H x W x D) 75 x 90 x 110 mm
Weight AC: 700 g, DC: 640 g
1 auxiliary contact (N/C)
crimp connectors
1
2
Approvals
PNOZ 1-2
l
Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-054-01/01
Telefon +49 (7 11) 34 09-0, Telefax +49 (7 11) 34 09-1 33, E-Mail: pilz.gmbh@pilz.de
Description
l 90 mm, P-75 housing, DIN-Rail
mounting
l Positive-guided relay outputs:
– 3 safety contacts (N/O)
– 1 auxiliary contacts (N/C)
l Connections for
– E-STOP button
– safety gate limit switch
– reset button
l LEDs for channel 1/2 and
operating voltage
l Increase in the number of
safety contacts available by
connecting expander modules.
Operating Modes
l Single-channel operation
l Dual-channel operation
l Automatic reset
l Manual reset
l Monitored manual reset
1-1
Emergency Stop Relays, Safety Gate Monitors
14
K4 K5
13
Y1 Y2
K4
K5
1L1
1L2
Category 4, EN 954-1
PNOZ 1-2
1
Internal Wiring Diagram
B
U
Input circuits
A2
A1
S11
(L-)
(L+)
F1
~
+
G1
=
K1.1 K3.1 K2.1
K1
S12
S52
K2
External Wiring
l Example 1
Single-channel E-STOP wiring with
manual reset.
S11 S12 Y1
S21
S1
S3
S22
K3.2
Feedback
control loop and
reset circuit
Y1
S21
K3
Y37
Y21
Reset circuit
Y2
K1.2
K2.2
Safety
contacts
13 233341
K1
K2
14 24 34 42
l Example 4
Single-channel safety gate control
with manual reset.
S11
S1
S12
Auxiliary
contact
S21
S3
– Key
S1/2: E-STOP or safety gate switch
S3: Reset button
Switch operated
Gate open
Gate closed
l Increase in safety contacts
The number of output contacts can
be increased by using expander
modules or relays/contactors with
positive-guided contacts.
Y1
Y2S52
S22
S12
l Example 2
Dual-channel E-STOP wiring with
manual reset.
S11
S21
S11
S1
S22
S12
S52
Y1
S3
Y2
l Example 3
Dual-channel E-STOP wiring with
monitored manual reset.
S11
S21
S11
S1
Y21
Y1
S3
S22
S12
S52
Y2
l Example 5
Dual-channel safety gate control with
manual reset.
Y1
S11
S11
S3
S12
S21
S52
Y2
S22
l Example 6
Dual-channel safety gate control with
automatic reset.
S12
S21
S11
Y1
S1
S2
S11
S22
S52
S12
Y2
Y37
S22
S52
Y2
Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-054-01/01
Telefon +49 (7 11) 34 09-0, Telefax +49 (7 11) 34 09-1 33, E-Mail: pilz.gmbh@pilz.de
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