Operation - Siemens SITOP PSE200U Betriebsanleitung

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WARNING / Danger of electric shock
This device is only suitable for operation with 24 V DC voltage (safety extra-low voltage). Direct connection of these devices to the 110 V, 230 V or 400 V
power system, or to power systems with a higher voltage, may consequently result in death, severe personal injury or substantial property damage. Only
qualified personnel should work on or around this equipment. The product will function correctly and safely only if it is transported, stored, set up and
installed as intended.
9
CAUTION
The device may only be opened by qualified personnel. Electrostatic sensitive devices (ESD)
Disposal guideline
Packaging and packing aids can be recycled and should always be disposed of for reuse.
The product itself shall not be disposed of as normal domestic waste.
Note
These operating instructions cannot claim to cover all details of the product, nor to provide for every possible contingency to be met in connection with
installation, operation or maintenance. For more information, please contact your local Siemens office or consult our Web site http://www.siemens.de/sitop.
Subject to change without prior notice. The German text applies if any doubt exists.
Description and design
The SITOP PSE200U electronic selectivity module is a built-in unit for mounting on standard rail DIN EN 60715-35x7.5/15 (see figure 1). It must be installed taking into
account all relevant DIN/VDE specifications and other national standards.
SITOP PSE200U is designed to be connected to stabilized 24 V DC power supplies with an output current up to 40 A.
SITOP PSE200U allows the 24 V DC output voltage generated by a stabilized power supply to be split between four load circuits (see figure 2). The rated current for
each output (1) can be set individually with a potentiometer (5) in the range of 3...10 A. If the rated current is exceeded for a certain time, the output will be switched
off automatically and can be switched on after a waiting time using the pushbutton (4) or the remote reset (7). The pushbutton (4) can also be used to switch the
output manually. The state of an output is indicated with a LED (3).
The actual output current of a load circuit can be determined by measuring the voltage at MP (2) against 0V (11). 1 V corresponds to 1 A.
The potentiometers (5) shall be actuated with care (max. torque is 0.04 Nm).
WARNING – Operate button (4) or potentiometer (5) in non hazardous areas only!

Operation

Operating states, Signaling, Reactions
"output switched off manually" for all 4 outputs ⇒ press pushbutton (4) to switch on each output.
Delivery state is
State
run-up of device
output switched on
output current > rated current
output was switched off automatically
reset of automatic switch-off possible
output switched off manually
output malfunction (internal fuse blown)
excess temperature of device
1) After the run-up of the device the outputs are switched on considering the programmed switch-on delay. ⇒
2) The output is automatically deactivated in accordance with switch-off characteristics. ⇒
After a waiting period of typ. 20 seconds the output can be switched on. ⇒
3)
The unexpired waiting time is stored when the device is switched off and elapses when it is switched on again.
4) The state is saved at power-off of the device.
5) After the decay of the excess temperature the output can be switched on again. ⇒
6) The statuses of all four outputs (1) are signaled serially via the status output (7) (see figure 4).
A frame consists of a start bit START and four status bits Ci (i=1...4), each separated by a pause bit P .
The status is not signaled during run-up of the device or if the supply voltage is missing; the status is then permanently '0'.
A function block for SIMATIC S7 controllers is available at
http://support.automation.siemens.com/WW/view/en/61450284.
Programming sequential switch-on delay
The outputs will be switched on automatically after reaching a minimum input voltage (connection threshold).
Sequential switch-on might be required for specific loads in order to reduce inrush surge currents. For this purpose it is possible to select one of four alternatives with
a 2-pole switch (9). The outputs are connected in a fixed order (output 1 » 2 » 3 »4).
no delay, all four outputs are connected at the same
A B
1
time (delivery state)
0
load dependent connection:
the next output will be connected as soon as the current of the previous output is less than the rated current
SITOP PSE200U 10 A
English
LED Ci 6)
1) off
green
2) green flashing
3) red
red flashing
4) orange flashing
off
5) red running light
www.siemens.com/sitop or from the direct link
25 ms delay between the connection
A B
1
of the outputs
0
4 / 6
Pushbutton pressed
— —
'1'
switch off output, ⇒
'1'
switch off output, ⇒
'0' —
'0'
switch on output, ⇒
'0'
switch on output, ⇒
'0' —
'0' —
100 ms delay between the connection
of the outputs
Remote reset active
—
—
—
—
switch on output, ⇒
—
—
—
C98130-A7579-A210-02-7419