Siemens SITOP, SITOP PSE200U User Manual

___________________

SITOP power supply

Selectivity modules

Manual

SITOP select 4 x 10 A 6EP1961

-2BA00

SITOP PSE200U 4 x 3

6EP1961

-2BA11

6EP1961

-2BA31

6EP1961

-2BA51

6EP1961

-2BA61

SITOP PSE200U 4 x 10

6EP1961

-2BA21

6EP1961-2BA41

01.2017

C98130

-A7579-A1-2-7629

Overview

Safety notes

Description, device design, dimension drawing

Mounting/removal

Mounting position, mounting clearances

Installation

Technical data

Safety, approvals, EMC

Environmental conditions

Environment

Service & Support

Siemens AG Division Process Industries and Drives Postfach 48 48 90026 NÜRNBERG GERMANY

C98130-A7579-A1-2-7629

Ⓟ

02/2017 Subject to change

Legal information

Warning notice system

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.

DANGER

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.

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.

Qualified Personnel

The product/system described in this documentation may be operated only by

personnel qualified

for the specific 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.

Proper use of Siemens products

Note the following:

WARNING

Siemens products may only be used for the applications described in the catalog and in the relevant technical

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

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

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.

Disclaimer of Liability

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.

Selectivity modules Manual, 01.2017, C98130-A7579-A1-2-7629

Overview

Description

In conjunction with a 24 V power supply, the selectivity module is used to distribute the load current across several branches and to monitor the individual currents in these branches. Faults in the individual branches caused by overload or short-circuit are detected and selectively switched off, so that the fault does not impact the other load circuits. This means fast troubleshooting and minimized downtimes.

The key benefits of the product include:

● A maximum of 4 load branches are monitored for each module

● The response threshold can be continually set for each output using a potentiometer

● Overcurrents are reliably switched off, independent of the cable length and cable cross-

section

● The 24 V supply for the other loads is maintained

● Multi-colored LED for each output for faster troubleshooting on-site

● Floating group signal contact for remote diagnostics (for -2BA00, -2BA11, -2BA21,

-2BA51)

● Single-channel signal to serially indicate the state of the individual outputs (for -2BA31,

-2BA41, -2BA61)

Overview

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4 Manual, 01.2017, C98130-A7579-A1-2-7629

● Evaluation using free-of-charge SIMATIC S7 function blocks (S7-300/400/1200/1500) for modules with single channel signal

● It can be selected that the load branches are sequentially switched on to reduce the total inrush current

● Versions for limited output power ratings according to NEC Class 2 (maximum, 100 VA).

Ordering data

The following device options are available:

Selectivity modules

Type

Order number

SITOP select 24 V DC input Number of outputs: 4 Setting range of the response threshold: 2 - 10 A with group signal contact

6EP1961-2BA00

SITOP PSE200U 24 V DC input Number of outputs: 4

Setting range of the response threshold: 0.5 - 3 A with group signal contact

6EP1961-2BA11

SITOP PSE200U 24 V DC input Number of outputs: 4

Setting range of the response threshold: 3 - 10 A with group signal contact

6EP1961-2BA21

SITOP PSE200U 24 V DC input Number of outputs: 4

Setting range of the response threshold: 0.5 - 3 A with single channel signal

6EP1961-2BA31

SITOP PSE200U 24 V DC input Number of outputs: 4

Setting range of the response threshold: 3 - 10 A with single channel signal

6EP1961-2BA41

SITOP PSE200U 24 V DC input Number of outputs: 4

Setting range of the response threshold: 0.5 - 3 A with group signal contact NEC Class 2

6EP1961-2BA51

SITOP PSE200U 24 V DC input Number of outputs: 4

Setting range of the response threshold: 0.5 - 3 A with single channel signal NEC Class 2

6EP1961-2BA61

Overview

Selectivity modules Manual, 01.2017, C98130-A7579-A1-2-7629

Accessories

Type

Order number

Flat insertable fuse: Manufacturer, Littelfuse, series FKS, 19 mm long (for 6EP1961-2BA00)

162.6185.* (FKS-32), 166.7000.* (FKS-80)

Device identification label 20 mm × 7 mm, pastel turquoise 3RT1900-1SB20 (for 6EP1961-2BA11, -2BA21, -2BA31, -

2BA41, -2BA51, -2BA61)

3RT1900-1SB20

Overview

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Selectivity modules Manual, 01.2017, C98130-A7579-A1-2-7629

Table of contents

Overview................................................................................................................................................. 3

1 Safety notes ............................................................................................................................................ 9

2 Description, device design, dimension drawing...................................................................................... 11

2.1 Device description ................................................................................................................... 11

2.2 Connections and terminal designation.................................................................................... 12

2.3 Potentiometer .......................................................................................................................... 14

2.4 Status displays and signaling ................................................................................................. 15

2.5 Buttons and selector switches ................................................................................................ 19

2.5.1 SITOP select ........................................................................................................................... 19

2.5.2 SITOP PSE200U .................................................................................................................... 20

2.6 Electronic overload shutdown and reset ................................................................................. 21

2.6.1 SITOP select ........................................................................................................................... 21

2.6.2 SITOP PSE200U .................................................................................................................... 23

2.7 Setting the switch-on delay time ............................................................................................. 26

2.7.1 SITOP select ........................................................................................................................... 26

2.7.2 SITOP PSE200U .................................................................................................................... 28

2.8 Block diagram ......................................................................................................................... 29

2.9 Dimensions and weight ........................................................................................................... 31

3 Mounting/removal ................................................................................................................................. 33

4 Mounting position, mounting clearances ................................................................................................ 35

4.1 Standard mounting position .................................................................................................... 35

4.2 Other mounting positions ........................................................................................................ 37

4.2.1 6EP1961-2BA00 ..................................................................................................................... 37

4.2.2 6EP1961-2BA11, 6EP1961-2BA31, 6EP1961-2BA51 and 6EP1961-2BA61 ........................ 39

4.2.3 6EP1961-2BA21 and 6EP1961-2BA41 .................................................................................. 41

5 Installation ............................................................................................................................................ 43

5.1 Input side connection .............................................................................................................. 43

5.2 Output-side connection ........................................................................................................... 45

6 Technical data ...................................................................................................................................... 47

6.1 Input ........................................................................................................................................ 47

6.2 Output ..................................................................................................................................... 47

6.3 Efficiency ................................................................................................................................. 50

6.4 Protection and monitoring ....................................................................................................... 51

6.5 MTBF ...................................................................................................................................... 51

Table of contents

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6.6 Mechanical system ................................................................................................................ 51

6.7 Accessories ............................................................................................................................ 52

6.8 Dimension drawing ................................................................................................................ 53

7 Safety, approvals, EMC ........................................................................................................................ 55

7.1 Safety ..................................................................................................................................... 55

7.2 Approvals ............................................................................................................................... 55

7.3 EMC ....................................................................................................................................... 56

8 Environmental conditions ...................................................................................................................... 57

9 Environment ......................................................................................................................................... 59

10 Service & Support ................................................................................................................................. 61

Selectivity modules Manual, 01.2017, C98130-A7579-A1-2-7629

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.

WARNING

OPERATE POTENTIOMETERS OR SWITCHES IN NON-HAZARDOUS AREAS ONLY!

Safety notes

Selectivity modules

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Selectivity modules Manual, 01.2017, C98130-A7579-A1-2-7629

2.1

Device description

Using the selectivity module, a 24 V DC output voltage from a regulated power supply can be distributed across four load circuits. The response threshold of the output current can be individually set for each output using a potentiometer. When the set response threshold is exceeded, the output is automatically switched off according to a defined switch off characteristic, and can be switched on again after a wait time using a pushbutton or remote reset (SITOP PSE200U). The status of the output is displayed using a multi-color LED for each output. The status of the outputs can be processed via a group signaling contact or via a serial single-channel signal.

①

+24 V input

②

0 V connection for the internal supply

③

+24 V outputs

④

Group signal contact/status output/remote reset input

⑤

Potentiometer for each output

⑥

Button

⑦

Measuring point

⑧

Indicator light for each output

⑨

Natural convection

⑩

Clearance above/below

⑪

Selector switch for switch-on delay

Figure 2-1 Design

Description, device design, dimension drawing

2.2 Connections and terminal designation

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2.2

Connections and terminal designation

The input terminals ① can be used to establish the connection to the supply voltage. The 0 V connection

② is used to supply the internal electronics. Output terminals ③ are used to

connect to the loads to be supplied (also see Chapter Installation (Page 43)).

The operating status of the device can be processed using the group signal contact or status output

④ (function and contact rating, see Figure 2-4 Operating displays and signaling

(SITOP select and SITOP PSE200U) (Page 15)). The remote reset input

④ is used to reset outputs that have been automatically switched off

(function, see Chapter Status displays and signaling (Page 15)).

Connections and terminal designations for 6EP1961-2BA00

①

+ 24 V input

2 screw terminals

②

0 V connection

2 screw terminals

③

+ 24 V output: 1, 2, 3, 4

One screw terminal each

④

group signal contact (13, 14)

One screw terminal each

Connections and terminal designations for 6EP1961-2BA11, 6EP1961-2BA21 and 6EP1961-2BA51

①

+ 24 V input

2 screw terminals

②

0 V connection

2 screw terminals

③ + 24 V output: 1, 2, 3, 4

One screw terminal each

④ group signal contact (11, 12, 14); remote

reset (RST)

One screw terminal each

Connections and terminal designations for 6EP1961-2BA31, 6EP1961-2BA41 and 6EP1961-2BA61

①

+ 24 V input

2 screw terminals

②

0 V connection

2 screw terminals

③

+ 24 V output: 1, 2, 3, 4

One screw terminal each

④

not assigned (NC)

2 screw terminals

④

status output (S); remote reset (RST)

One screw terminal each

Description, device design, dimension drawing

2.2 Connections and terminal designation

Selectivity modules Manual, 01.2017, C98130-A7579-A1-2-7629

*1)

Do not subject the end stop to higher loads

Figure 2-2 Terminal data

NOTICE

Overload of the wiring

The "0 V" connection is only used to supply the internal electronics of the selectivity module. The 0 V of the connected loads must be routed directly to the power supply using separate cables!

Description, device design, dimension drawing

2.3 Potentiometer

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2.3

Potentiometer

The potentiometer ⑤ on the front of the device is used to set the response threshold of the output current. When delivered, the maximum possible response threshold is set.

Figure 2-3 Potentiometer (SITOP select and SITOP PSE200U)

Note

It is only permissible to use an insulated screwdriver when actuating the potentiometer.

For information on actuating the potentiometer (screwdriver, torque), see Figure 2-2 Terminal data (Page 13).

Note

For SITOP PSE200U, the actual output current of a branch can be determined by measuring the voltage at measuring point "MP"

⑦ with respect to the "0 V" terminal. A measured

voltage of 1

V corresponds to an output current of 1 A.

Description, device design, dimension drawing

2.4 Status displays and signaling

Selectivity modules Manual, 01.2017, C98130-A7579-A1-2-7629

2.4

Status displays and signaling

6EP1961-2BA00

6EP1961-2BA11 6EP1961-2BA21 6EP1961-2BA51

6EP1961-2BA31 6EP1961-2BA41 6EP1961-2BA61

Operating display ⑧

Two-color LED Three-color LED Three-color LED

Group signal contact (13, 14 or 11, 12, 14) ④

floating relay contact (NO contact), contact rating:

24 V/0.5 A

floating relay contact (changeover contact), contact rating:

24 V/0.1 A

Status output (S) ④

- - Non-floating 24 V DC output,

max. 30 mA

Remote reset input (RST)

④

- Non-floating 24 V DC input

Non-floating 24 V DC input

Figure 2-4 Operating displays and signaling (SITOP select and SITOP PSE200U)

The operating state of the outputs is displayed using multi-color LEDs at the front of the device. Symbols indicate the significance of each LED, which are listed in the following table.

LED off

LED is continuously lit

LED flashes

Description, device design, dimension drawing

2.4 Status displays and signaling

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SITOP select LED ⑧ and group signaling contact ④

Signaling

6EP1961-2BA00

Off All LEDs:

• No supply voltage

• Device powering up: After the device has powered up, the outputs

are switched on, taking into consideration the switch-on delay that has been set.

Lights up green

Normal operation, output is switched on

Lights up red

Output switched off automatically to due overload

Flashes red

Outputs ready to be reset after an automatic switch off by pressing the

button

Light up red

All LEDs are red (after actuating the reset button for a minimum of 8 s):

programming mode for the switch-on delay

Flashes red All LEDs flash red (in the programming mode):

signals the programmed switch-on delay time:

• all LEDs flash 1x simultaneously red, followed by a 2 s pause: 0 ms

• all LEDs flash 2x simultaneously red, followed by a 2 s pause: 24 ms

• all LEDs flash 3x simultaneously red, followed by a 2 s pause: 100 ms

Group signaling contact (NO contact)

Signal contact (13-14) opens (=quiescent position) when one/several outputs are switched off as a result of overload or when a fuse rup-

tures.

Description, device design, dimension drawing

2.4 Status displays and signaling

Selectivity modules Manual, 01.2017, C98130-A7579-A1-2-7629

SITOP PSE200U LED ⑧ and group signaling contact or status output ④

Signaling

6EP1961-2BA11 6EP1961-2BA21 6EP1961-2BA51

6EP1961-2BA31 6EP1961-2BA41 6EP1961-2BA61

Off All LEDs:

• No supply voltage

• Device powering up: After the device has powered up, the outputs are

switched on, taking into consideration the switch-on delay that has been set.

Group signal: Inactive Status output1*: LED, individual output:

Output defective (internal fuse has ruptured)

Group signal: Inactive Status output1*: Ci = '0'

Lights up

green

Normal operation, output is switched on

Group signal: Active Status output1*: Ci = '1'

Flashes green

The output current is in the overload range according to the shutdown characteristic (see Chapter SITOP PSE200U (Page 23))

-2BA11, -2BA21, -2BA31, -2BA41: overload at the output: Output current 101 - 150 % of the response threshold (for 5 s)

-2BA51, -2BA61: overload at the output: Output current 101 - 110 % of the response threshold

(for 5 s)

Group signal: Active

Status output1*: Ci = '1'

Lights up red

Output automatically shut down due to overload or external overvoltage > typ.

30 V/100 ms. The output can be switched on again after a typical wait time of 20 s. The wait time still to elapse is saved when switching off the device –

and is reactivated after the device has been switched on again.

Group signal: Inactive

Status output1*: Ci = '0'

Flashes red

Output ready to be reset after an automatic switch off by actuating the button or remote reset (effective for all outputs that have been automatically

switched off)

Group signal: Inactive Status output1*: Ci = '0'

Flashes orange

Output manually switched off using the button: The state is saved when the device is switched off, and can only be reset again by pressing the up button

again.

Group signal: Active

Status output1*: Ci = '0'

Red running light

Device overtemperature: The outputs can be switched-on again once the

temperature is in the normal range.

Group signal: Inactive

Status output1*: Ci = '0'

Group signaling contact (changeover

contact)

In the "inactive" state, 11-12 are connected and 11-14 open

Description, device design, dimension drawing

2.4 Status displays and signaling

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Signaling

6EP1961-2BA11 6EP1961-2BA21 6EP1961-2BA51

6EP1961-2BA31 6EP1961-2BA41 6EP1961-2BA61

Status output - Serial signaling (see Figure 2-5 Status

signaling (Page 18

)), ’1’ = 24 V DC /

’0’ = 0 V (pull down)

The status of all four outputs is serially signaled using status output ④ (see Figure 2-5

Status signaling (Page 18)). A frame comprises a start bit START and four status bits Ci (i=1 … 4), which are each separated by a pause bit P. While the device powers up, or if the supply voltage is missing, nothing is signaled, the status remains continuously at ’0’. For SIMATIC-S7 controllers (S7-300/400/1200/1500), a function block for evaluation is available under (http://www.siemens.com/sitop

) or the direct link

(https://support.industry.siemens.com/cs/us/en/view/61450284).

Figure 2-5 Status signaling

Description, device design, dimension drawing

2.5 Buttons and selector switches

Selectivity modules Manual, 01.2017, C98130-A7579-A1-2-7629

2.5

Buttons and selector switches

2.5.1

SITOP select

Figure 2-6 Reset button SITOP select

The reset button ⑥ for the SITOP select selectivity module has the following two functions:

1. resets all outputs automatically switched off due to an overload condition (see Chapter Electronic overload shutdown and reset (Page 21)).

2. is used to program the sequential switch-on delay (see Chapter Setting the switch-on delay time (Page 26).

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