Pilz S1SW P Data Sheet
Electronic Monitoring Relays
Standstill monitoring
S1SW P
Technical Details S1SW P
Electrical data
Supply voltage AC/DC: 24 ... 240 V
Tolerance 85 ... 110 %
Power consumption Approx. 5 VA
Switching capability to
EN 60947-4-1, 10/91 AC1: 240 V/0.1 ... 5 A/1200 VA
EN 60947-5-1, 10/91 AC15: 230 V/2 A; DC13: 24 V/1.5 A
Output contacts 2 auxiliary contacts (C/O)
Contact material AgCdO, 3 µm hart gold-plating for
Contact fuse protection Max. 6 A quick or max. 4 A slow
to EN 60947-5-1, 10/91
Measuring circuit
The standstill monitoring relay
S1SW P monitors for standstill
on DC and three-phase AC motors.
Features
● Standstill monitoring without
and with run-down time
● Standstill threshold can be set
● Run-down monitoring time can
be set
● Normally de-energised mode
● Measuring circuits are
galvanically isolated
● No speed sensor required
● Suitable for use with frequency
converter
Approvals
Frequency range 0 ... 1000 Hz
Adjustable measuring range limit values 0.02 ... 3 V
Max. input voltage AC/DC: 690 V
Impedance of measuring inputs 5 MΩ
Run-down monitoring time 0 ... 30 s
Environmental data
Ambient temperature -10 ... +55 °C
Mechanical data
Max. cross section of external conductor
Single-core conductor flexible without crimp connector:
Multi-core conductor
(2 conductors with identical cross section) flexible with crimp connector without
Dimensions (H x W x D) 94 x 22,5 x 121 mm
Weight 200 g
DC1: 24 V/0.1 ... 5 A/120 W
low load range 1-50 V/1-100 mA
0.04 ... 6 V
0.2 ... 2.5 mm
flexible with crimp connector:
0.25 ... 2.5 mm
plastic sleeve: 0.25 ... 1 mm
flexible with TWIN crimp connector with
plastic sleeve: 0.5 ... 1.5 mm
2
2
2
2
4
S1SW P
●
Description
The standstill monitoring relay is
● LEDs for switching status of the
enclosed in a S-99 slimline housing
with plug-in terminals.
Features:
● Operating modes:
Standstill: 1 auxiliary contact (C/O)
Fault: 1 auxiliary contact (C/O)
● Operating modes:
- Standstill monitoring without
run-down monitoring
- Standstill and run-down
monitoring
● Potentiometers for adjusting the
switch-on threshold and monitoring time
● Slide switch for doubling the
measuring range
Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
The standstill monitoring relay S1SW
P monitors the run-down on a threephase AC asynchronous machine
using standstill detection. In this
process, the residual-induced
voltage of the motor winding is
measured and, if it falls below the set
threshold, standstill is signalled (relay
contact). A second relay signals a
fault if the voltage does not fall
below the set threshold within the
run-down monitoring time. Time
monitoring when the volt-free start
contact closes (N/C contact of motor
contactor at Y3, Y4).
relay, fault status and supply
voltage
NSG-D-2-278-2005-04
Electronic Monitoring Relays
Standstill monitoring
S1SW P
Internal wiring diagram
V
B3 A2
A2
Y4A1 Y3U
22
12
14
24
4
~
+
UM < U
=
U
to B3-A2: 24 V AC/DC
B
UB to A1-A2: 42-240 V AC/DC
an
K1
Timing diagram
U
B
Y3-Y4
U
M
U
ab
U
an
K1
Standstill
(gr)
t < t
Pwr
a
K2
(gr)
Flt
(rd)
K1
11 21
K2
K2
ta
U
Supply voltage
B
Y3-Y4 Start contact
ta
ta
Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-278-2005-04
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