Pilz PST 1 Data Sheet

Safety Gate Monitors

Category 4, EN 954-1

PST 1

Safety gate monitor in accordance
with VDE 0113-1, 11/98,
12/97 and IEC 204-1, 11/98.

Features

● Simultaneity monitoring

● Automatic reset possible

● Start-up test after supply

voltage is applied

Approvals

TÜV Wien

PST 1

●

●

●

●

EN 60204-1

,

Description

● 45 mm, P-75 housing, DIN-Rail

● Positive-guided relay outputs:

● Connection for

● Increase in the number of

Technical Details PST 1

Electrical Data

Supply Voltage

Tolerance 85 ... 110 %
Power Consumption Approx. 2 W/4 VA
Residual Ripple DC Max. 20 %
Voltage and Current at the 24 VDC, 40 mA
Input Circuits 1/2
Switching Capability in accordance with
EN 60947-4-1, 01/92 AC1: 240 V/6 A/1500 VA

EN 60947-5-1, 08/00 (DC13: 6 cycles/min.)
Output Contacts 2 safety contacts (N/O)
Contact Fuse Protection 6 A quick or 4 A slow
(EN 60947-5-1, 08/00)

Times

Delay-on Energisation Approx. 50 ms
Delay-on De-energisation Approx. 30 ms
Recovery Time
Simultaneity channel 1/2 Approx. 4 s
Max. Supply Interruption before 10 ms
De-energisation

Mechanical Data

Torque Setting on Connection Terminals 1.2 Nm (screws)
Maximum Cross Section of 2 x 2.5 mm
External Condcutors Single-core or multi-core

Dimensions (H x W x D) 87 x 45 x 110 mm
Weight AC: 380 g, DC: 280 g

mounting
– 2 safety contacts (N/O)
safety gate limit switch
safety contacts available by

connecting expander modules.

AC: 24, 42, 48, 110, 115, 120, 230, 240 V
DC: 24 V

DC1: 24 V/6 A/150 W
AC15: 230 V/5 A; DC13: 24 V/6 A

AC: approx. 250 ms, DC: approx. 500 ms

2

with crimp connectors

2

Operating Modes

● Dual-channel operation

NSG-D-2-073-03/01

Safety Gate Monitors

14

K3 K4

13

X1 X2

K3

K4

1L1

1L2

Category 4, EN 954-1

PST 1

2

Internal Wiring Diagram

U

B

A1

(L+)

F1

~

G1

A2

(L-)

+

=

Feedback control loop

X2

X1

Input circuit

Switch-on logic/
cycle test

S24

S23

Input circuit

Function Diagram

U

B

S2

S1

X1-X2

13-14

t

t0: UB must be present for a minimum of 500 ms before S2
tg: Simultaneity approx. 4 s
t2: Operating cycle is ended using S1 or S2
t3: X1-X2 must be closed for a minimum of 500 ms before S1

t

gt0

2

t

t

g

2

t

3

K1

channel 1

channel 2

K2

t

g

t

3

Safety contacts

13 23S12 S11

14 24

t

2

● Example 3
Dual-channel safety gate control with
simulation for opening and closing
the safety gate.

X1

S12

S1S1

S2

S24

X2

S3

S11

S23

– Key

S1/S2: E-STOP or safety gate switch
S3: Reset button

Switch operated
Gate open
Gate closed

● Increase in safety contacts
The number of output contacts can
be increased by using expander
modules or relays/contactors with
positive-guided contacts.

External Wiring

● Example 1
Dual-channel safety gate control with
position monitoring.

S11

S24

X1

S1S1

S12

S23

S2

X2

● Example 2
Dual-channel safety gate control with
function and start-up testing.

S11

S24

X1

S1S1

S12

S23

S2

X2

NSG-D-2-073-03/01