3RP15051AP30 SIEMENS, 3RP15051AP30 Datasheet - Page 62

TIMER, MULTIFUNCTION

3RP15051AP30

Manufacturer Part Number
3RP15051AP30
Description
TIMER, MULTIFUNCTION
Manufacturer
SIEMENS
Datasheet

Specifications of 3RP15051AP30

Contact Configuration
SPCO
Nom Input Voltage
240V
Delay Time Range
0.5s To 10s
Adjustment Type
Screwdriver Slot
Relay Mounting
DIN Rail
Coil Voltage Vac Nom
240V
Coil Voltage Vdc Nom
24V
3RS17 interface converters
Overview
Interface converters perform the coupling function for analog
signals on both the input side and the output side. They are
indispensable when processing analog values with electronic
controls. Under harsh industrial conditions in particular, it is often
necessary to transmit analog signals over long distances. This
means that electrical isolation is essential due to the different
supply systems. The resistance of the wiring causes potential
differences and losses which must be prevented.
Electromagnetic disturbance and overvoltages can affect the
signals on the input side in particular or even destroy the analog
modules. All terminals of the 3RS17 interface converters are safe
up to a voltage of 30 V DC and protected against switching
poles. Short-circuit protection is an especially important function
for the outputs.
The devices are EMC-tested according to
• EN 50081 (basic technical standard for emitted interference),
• EN 61000-6-2 (basic technical standard for immunity to
The analog signals comply with
• IEC 60381-1/2.
7/78
interference).
Interface Converters
Siemens LV 1 · 2006
Application
Converters are used in analog signal processing for
• Electrical isolation
• Conversion of normalized and non-normalized signals
• Matching of gain and impedances
• Conversion to a frequency for processing by a digital input
• Overvoltage and EMC protection
• Short-circuit protection of the outputs
• Potential duplication
Application example:
Interface converter in analog signal evaluation
3RS17 25 manual/automatic converter
For special applications in which analog signals have to be
simulated, or during plant commissioning when the actual
process value is not yet available, the 3RS17 25 devices feature
an adjustable potentiometer for entering setpoints manually and
a manual/automatic switch.
The adjustable potentiometer for the 3RS17 25 devices is used
to simulate analog output signals when the changeover switch is
set to "Manual" and the control supply voltage is applied, without
the need for an analog input signal; the scale ranges from
0 % ... 100 %.
Example: When it is set for an output of 4 mA ... 20 mA, the 0 %
scale value on the potentiometer represents an output current of
4 mA and the 100 % scale value represents an output current of
20 mA. In the "Auto" switch position, the output signal follows the
input signal proportionally regardless of the potentiometer
setting.
U I
U I F
U I
U I

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