ITR SEM SC11 User Manual And Technical Documentation

Current transducer

User manual and technical documentation

Document version:

1

Update:

05.05.2017

Safety information

National and local electrical safety regulations must always be followed.

Improper operation of the device or its application to purposes different from the intended use
may pose hazards to operators and /or may lead to the equipment damage.

Exploration of damaged device can result in malfunction of protected object and result in threat
to life and health.

Reliable and defect-free operation of the device needs appropriate transportation, handling,
storage, installation and commissioning as well as correct operation and maintenance.

Whenever changes are made in the device, measures should be taken to avoid inadvertent
tripping.

Comments

We reserve the right to modify the device.

Device is an industrial monitoring and control instrument.

Remaining user documentation can be downloaded from energetyka.itr.org.pl.

Contents:

1. Introduction 4

Symbols ........................................................................................................................................... 4 1.1.

2. General Information 5

3. Extensions 7

SEM SB11 ........................................................................................................................................ 8 3.1.

Panels .............................................................................................................................................. 9 3.2.

3.2.1. PAN 1 ..................................................................................................................................... 9

3.2.2. PAN 3 ................................................................................................................................... 10

Optional accessories ..................................................................................................................... 11 3.3.

3.3.1. SPS 24-1 ............................................................................................................................... 11

3.3.2. SEM Cxx ............................................................................................................................... 12

3.3.3. SEM Bxx - binary inputs and outputs ................................................................................... 13

4. Operating the device 14

5. Disturbance recorder 15

6. Wiring diagrams 16

7. Remarks of manufacturer 17

Maintenance, inspections, repairs ................................................................................................ 17 7.1.

Storage and transport ................................................................................................................... 17 7.2.

Place of installation ....................................................................................................................... 17 7.3.

Disposal ......................................................................................................................................... 17 7.4.

Guarantee ..................................................................................................................................... 17 7.5.

8. Additional information 18

Description of communication interfaces .................................................................................... 18 8.1.

9. Order specification 20

10. Contact 21

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Electrical warning symbol indicates the presence of hazardous energy circuits or electric shock
hazards.

The warning symbol indicates the important information related to the threat to life and health.

The information symbol indicates the clarification of relevant features and parameters of the
device.

1. Introduction

Symbols 1.1.

4 / 21 IU_26779_1_ENG_MANUAL_SEMSC11

The SEM SC11 device is a component of a Smart Station Control system. Is designed for monitoring,
control and diagnostics of different type of switching devices.

The logic of operation of Smart Control SEMSC11 is based on the ELF application and can be
freely edited by the user, which makes it possible to design a control algorithm for any type
commutating device.

Name

Colour

Description

STATUS

yellow

continuous light – indicates correct operation of the device
no light – a failure has been detected by the self-control algorithm

POWER

green

continuous light – indicates correct supply voltages
no light – indicates incorrect supply voltages.

2. General Information

Fig. 2.1. View of the panel of SEM SC11

The unit can be controlled through the output (MC - Motor Control) with a reversible polarity rated up to 30 A.
To improve the security and reliability of the device control, the following modules were implemented:

 algorithm of return to the secure state after a failed commutating cycle;
 measurement and control of the drive control current;
 commutating cycle recorder with the time registration of 20s.

Table 2.1. Meaning of predefined diodes:

The scope of functionality of the MODBUS-RTU protocol:

 Controlling switching devices;
 Reading i/o states;
 Performing a sequence of pre-sending and object-oriented tests with validation of the test

performance.

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Characteristics and functionality of SEM SC11:

 12 or 14 binary inputs,
 2 transistor DC 24 V binary outputs,
 two enhanced relay-semiconductor binary outputs for direct control of switching devices,
 one relay-semiconductor binary output with a variable polarity for direct control of the commutating

device drive (control current up to 30),

 measurement of the drive control current;
 supply voltage measurement,
 the RJ45 link for the PAN 1 or PAN 3 operator panel,
 the RS-485 link for communication with a telemechanics driver or the SEM SB11 device - the MODBUS-

RTU protocol,

 self-monitoring functions (STATUS led)
 reprogramming functions (through both transmission ports),
 programmable logic, including algorithms for monitoring and control of the commutating device,
 test profile for diagnosing the correct operation of the device,
 algorithm of return to the secure state after a failed commutating operation;
 commutating operation recorder with the registration time of 20s.
 remote and local modes of operation.

The following applications are used for configuring and reprogramming the device:

 ELF – Parametrisation, logic design, driver status display,
 FlashArm – reprogramming the driver,
 appSC – specialized application tool adapted to the SEM SC11 to configure basic parameters, change

the profile of logic and view the state of binary inputs and outputs.

6 / 21 IU_26779_1_ENG_MANUAL_SEMSC11

operator

supply from

telemechanics

control

supply

SPS 24-1

supply switch

AK 1

USB-RS485 converter

Operator panel

Switch with 24 V DC

closer

3. Extensions

A typical driver consists of the central module SEM SC11. The module has two links: X31 (RS-485) for
connecting with the telemechanics or module SEM SB11 and X41 (PANEL) for connecting the HMI Panel.
The device operation can be monitored and controlled through both links. The telemechanics functions can be
performed by the SEM Cxx module which is equipped with tools for communication with SCADA systems. For
local control of the device, PAN 1 or PAN 3 type detachable operator panels are used.

All modules are supplied with DC 24 V. If there is a separate power supply in the switchgear for
the commutating device control and the telemechanics, use the SPS 24-1 type power switch which switches the
SEM SC11 to the standby power (from the telemechanics) in the absence of a control voltage.- In this case,
the control of the switch is blocked, but its status can be monitored and data exchange with the telemechanics
is possible.

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