ITR SEM SC11, User Manual And Technical Documentation, Page: 5 / 21

IU_26779_1_ENG_MANUAL_SEMSC11 5 / 21
2. General Information
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.
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.
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.
Table 2.1. Meaning of predefined diodes:
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.
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.