indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
Qualified Personnel
personnel qualified
Proper use of Siemens products
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
Disclaimer of Liability
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
The product/system described in this documentation may be operated only by
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Note the following:
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.
for the specific
12/2014 Subject to change
Overview
The 3-phase SITOP PSU8200 power supply from the SITOP modular product line is a highperformance, stabilized technology power supply for automated machines and systems.
The key benefits of the product include:
● Wide-range input, which allows it to be connected to almost any 3-phase line supply
around the world
● Output voltage can be adjusted in the range 24..28.8 V
● Power boost during operation with 300% rated current for 25 ms
● Extra-Power with 1.5x rated current for 5 seconds for switching on loads with a high
inrush current
● Especially low width without requiring any lateral mounting clearances
● Ambient temperature -25...+70 °C
● Selectable short-circuit response (constant current or latching shutdown)
● A soft characteristic can be selected for a parallel connection (for uniform load distribution
● To increase the system availability, these reliable power supplies can be expanded using
SITOP supplementary modules (redundancy module, selectivity module, buffer module),
as well as SITOP DC-UPS modules.
3
Overview
Ordering data
Regulated power supply unit SITOP PSU8200 3ph
Type
Order number
24 V/20 A output
Output 24 V DC / 40 A
Accessories
Type
Order number
Device identification labels 20 mm × 7 mm, Ti grey
6 Technical data ...................................................................................................................................... 29
11 Service & Support ................................................................................................................................. 57
9.1 Parallel connection to increase power rating ......................................................................... 45
9.2 Parallel connection for redundancy ....................................................................................... 47
9.3 Series connection for increased voltage ................................................................................ 49
9.4 Overload protection in the 24 V output circuit ........................................................................ 50
9.5 Protection against short-time voltage dips ............................................................................. 51
9.6 Protecting against longer power failures ................................................................................ 52
SITOP PSU8200 3ph
6Manual, 11.2014, C98130-A7638-A1-2-7629
1
WARNING
Correct handling of the devices
When operating electrical devices, it is inevitable that certain components will carry
dangerous voltages.
Therefore, failure to handle the units properly can result in death or serious physical injury
as well as extensive property damage.
Only appropriately qualified personnel may work on or in the vicinity of this equipment.
Perfect, safe, and reliable operation of this equipment is dependent on proper
transportation, storage, installation and mounting.
Before installation or maintenance work can begin, the system's main switch must be
switched off and measures taken to prevent it being switched on again.
If this instruction is not observed, touching live parts can result in death or serious injury.
SITOP PSU8200 3ph is a primary-clocked power supply for connection to a 3-phase AC line
supply. An electronically regulated DC voltage that can be set via a potentiometer is
available at the output of the device. The output of the device is isolated, no-load proof and
short-circuit proof. The LED displays indicate the operating state. The operating state of the
device can be processed via the signaling contact.
The line input terminals ① can be used to establish the connection to the supply voltage.
The output terminals
② are used to connect to the loads to be supplied (see also Section
Installation (Page 25)).
Line input L1, L2, L3, PE
output "+"
output "–"
signaling contacts 13, 14
*1)
Figure 2-2 Terminal data 6EP3436-8SB00-0AY0
One screw terminal each
2 screw terminals
2 screw terminals
One screw terminal each
*1)
Figure 2-3 6EP1437-3BA10 terminal data
SITOP PSU8200 3ph
10Manual, 11.2014, C98130-A7638-A1-2-7629
Description, device design, dimension drawing
2.3
Potentiometer
NOTICE
Thermal overload possible
Note
It is only permissible to use an insulated screwdriver when actuating
2.3 Potentiometer
The potentiometer ③ on the front of the device is used to adjust the output voltage. The
output voltage is set to 24 V in the factory, and can be adjusted in the range 24 ... 28.8 V; for
example, to compensate voltage drops across long supply lines to the connected load.
Figure 2-4 Potentiometer
When adjusting the output voltage to >24 V, the output current must be derated by 4 %/V,
or the permissible ambient temperature must be taken into account with 3° C/V.
the potentiometer.
For notes on actuating the potentiometer (screwdriver, torque), see Figure 2-2 Terminal data
6EP3436-8SB00-0AY0 (Page 10) and Figure 2-3 6EP1437-3BA10 terminal data (Page 10)
LED green for "24 V O.K."
Yellow LED for overload in "constant current" mode
Red LED for latching shutdown in "shut down" mode
Relay contact (NO contact, contact
rating 30 V AC / 0.5 A, 0 V DC / 0.3 A,
Relay contact (NO contact, rating
60 V DC / 0.3 A) for "24 V O.K."
Green LED lit
Signaling contact,
LED off
Signaling contact,
contacts 13-14 open
Yellow LED lit
Signaling contact,
contacts 13-14 open
Yellow and green LED lights
Signaling contact,
SITOP PSU8200 3ph
Normal operation, output voltage
>20 V ±0.5 V
No supply voltage
Overload, output voltage <20 V ±0.5 V
(only in "constant current" mode)
Phase failure, output voltage O.K. -
Normal operation, output voltage
>20 V ±0.5 V
No supply voltage
Overload, output voltage <20 V ±0.5 V
(only in "constant current" mode)
Selector switches may only be activated when the device is switched off.
2.5 Change-over switch
Figure 2-6 Selector switch
The two switches A and B are used to influence the output characteristic curve:
influences the output
characteristic in the
load range
influences the output
characteristic in the
overload range
"Soft" characteristic curve (see Figure 6-5 Output
characteristic curve 6EP3436-8SB00-0AY0 parallel
operation (Page 32) and Figure 6-6 6EP1437-3BA10
parallel operation output characteristic curve
(Page 33)) for the parallel operation of two or more
devices: The output voltage falls with increasing output current (namely, also for the overcurrent pulse!).
This means that for full output current the highest
output voltage can normally no longer be attained.
If the output current rises above the rated value and
above the current limit, the device reduces the output
voltage (see Figure 6-7 Output characteristic curve
6EP3436-8SB00-0AY0 latching shutdown (Page 33)
and Figure 6-8 6EP1437-3BA10 latching shutdown
output characteristic curve (Page 33)). If the output
voltage falls below 20 V, the device shuts down latching, the red LED lights up. This limit voltage of 20 V is
independent of the set output voltage. The 'Short-time
overload current' feature is not available in this operating mode. In order to also be able to charge large
capacitances in this operating mode at the output,
non-latching shutdown is performed during the first
ten seconds after power on. During these first 10 s,
the device responds for overload as if the switch is
Delivery state
"Hard" characteristic curve (see Figure 63 Output characteristic curve 6EP34368SB00-0AY0 single operation (Page 32)
and Figure 6-4 6EP1437-3BA10 single
operation output characteristic curve
(Page 32)) for normal operation (single
operation): The output voltage is inde-
Delivery state
If the output current rises above the rated
value and above the current limit, the
device reduces the output voltage. The
yellow LED lights up if the output voltage
falls below 20 V.
Installing the device in a housing or a control cabinet
Mounting
Removal
The SITOP PSU8200 3ph power supply is a built-in device. It must be installed in a housing
or control cabinet, to which only qualified personnel have access.
The device can be mounted in a control cabinet on standard mounting rails according to
EN 60715.
To mount the device, position it with the mounting rail guide at the upper edge of the
standard mounting rail and press down to lock it into place. If this is too difficult, press slider
⑧ at the same time, as described under "Removal".
To remove, pull up the slider ⑧ using a screwdriver and disengage the device at the bottom
edge of the standard mounting rail. Then you can remove the device from the upper edge of
the standard mounting rail.
If the devices are to be used in hazardous zones (Ex II 3G Ex nA nC IIC T4 Gc ) they must
be installed in a distribution box with degree of protection IP54 or higher.
SITOP PSU8200 3ph
18Manual, 11.2014, C98130-A7638-A1-2-7629
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