Pilz S1UM Data Sheet
Electronic Monitoring Relays
Single-phase voltage monitoring
S1UM
Technical Details S1UM
Electrical data
Supply voltage AC: 24, 42...48, 110...127, 230...240 V
Tolerance 85 ... 110 %
Power consumption AC: 2 VA, DC: 1 W
Switching capability in accordance with
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 1 auxiliary contact (C/O)
Contact material AgCdO, 3 µm gold plating for low-load
Contact fuse protection in accordance Max. 6 A quick or max. 4 A slow
with EN 60947-5-1, 10/91
The S1UM voltage monitoring relay
is used for monitoring minimum or
maximum voltage values.
Features
● 12 measuring ranges,
0.1 V ... 500 V, selectable
● Reaction time can be set up
to 10 seconds
● Detects AC-/DC voltage values
automatically
● Operates to normally energised
or normally de-energised mode
● AC versions and UP version:
Galvanic isolation between
measuring and supply voltage.
● UP version: Measuring inputs
are not polarity-sensitive
Approvals
S1UM
Measuring circuit
Frequency range 0.40 ... 400 Hz
Adjustable limit values for measuring range 1 V: 1; 0.5 ; 0.2; 0.1 V
Hysteresis 0.6 to 0.95 x response value
Impedance of the measurement inputs 1 V: 15 kΩ
Overload on the measuring inputs 1 V: max. 40 V
Polarity of measuring inputs Polarised
Reaction time 0.1 ... 10 s
Temperature variation ± 0.05% per +1°C
Environmental data
Ambient temperature -15 ... +55 °C
Mechanical data
Max. cable cross section of ext. conductor 1 x 4 mm 2 or 2 x 1.5 mm
Dimensions (H x W x D) 87 x 22.5 x 122 mm
Weight 165 g
DC: 24 V
DC1: 24 V/0.1 ... 5 A/120 W
range 1-50 V/1-100 mA
20 V: 20, 10, 4, 2 V
500 V: 500, 250, 100, 50 V
20 V: 390 kΩ
500 V: 10 MΩ
20 V: max. 200 V
500 V: max. 700 V
UP version: any (not polarity-sensitive)
2
single-core or multi-core with crimp
connector
4
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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
Description
The voltage monitoring relay is
enclosed in an S-95 slimline
housing. There are eight AC versions
and one DC version available.
Features:
● Relay output: 1 auxiliary contact
(C/O)
●
3 measuring circuits for 1 V, 20 V
and 500 V
ranges
● Response value can be set from
20% to 100% of the measuring
range limit value
each with 4 different
● Hysteresis can be set from
● Fault status can be latched or
● LEDs for switching status for the
(Description continued overleaf)
0.6 to 0.95 x U
non-latched
relay and supply voltage.
on
NSG-D-2-009-2005-04
Electronic Monitoring Relays
Single-phase voltage monitoring
S1UM
The S1UM monitors for voltage
values exceeding a threshold limit.
On the UP version the measuring
inputs are not polarity-sensitive. If
the measured voltage reaches the
response value Uon, the auxiliary
contact 11-14 changes over and the
LED is illuminated. If the measured
voltage falls below the hysteresis
value U
selected, the auxiliary contact
changes over again and the LED
goes out. The unit is ready for
operation again. If faults are latched,
the unit is not ready for operation
again until an external reset button
is activated or the supply voltage
has been switched off and on again.
and automatic reset is
off
4
Internal wiring diagram
U
B
A2
A1
(-)
(+)
~
G1
=
Normally energised
(closed circuit) /
normally de-energised
(open circuit)
S1UM
Normally energised (closed circuit) /
normally de-energised (open circuit)
Y1 Y2 Y3
Latching/Non-latching
Measurement inputs
1V 20V 500V
Store
Auxiliary contact
12 14
K1
11
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-2-009-2005-04
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