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
Safety Gate Monitors
Category 4, EN 954-1
PST 1
General Technical Data
Unless stated otherwise in the technical details for the specific unit
Electrical Data
Frequency Range AC 50 ... 60 Hz
Residual Ripple DC 160 %
Contact Material AgSnO
Continuous Duty 100 %
Environmental Data
EMC EN 50081-1, 01/92, EN 61000-6-2, 03/00
Vibration in accordance with Frequency: 10 ... 55 Hz,
EN 60068-2-6, 04/95 Amplitude: 0.35 mm
Climatic Suitability DIN IEC 60068-2-3, 12/86
Airgap Creepage DIN VDE 0110 part 1, 04/97
Ambient Temperature -10 ... +55 °C
Storage Temperature -40 ... +85 °C
Mechanical Data
Torque Setting on Connection Terminals 0.6 Nm (screws)
Mounting Position Any
Housing Material Thermoplast Noryl SE 100
Protection Mounting: IP 54
2
Housing: IP 40
Terminal Range: IP 20
2
The units were tested in accordance with the relevant standards current at
the time of development.
Order References
Type U
PST 1 24 V DC 420 080
PST 1 24 V AC 420 000
PST 1 42 V AC 420 010
PST 1 48 V AC 420 020
PST 1 110 V AC 420 030
PST 1 115 V AC 420 035
PST 1 120 V AC 420 040
PST 1 230 V AC 420 050
PST 1 240 V AC 420 055
B
Order No.
NSG-D-2-073-03/01
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