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CYG PRS-7367 User Manual

CYG PRS-7367
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Protection Functions
PRS-7367 223
3.48 Machine Startup MST
3.48.1 Overview
3.48.1.1 Function Block
MST
U3P
Str
I3P
CBOpn
CBCls
Figure 3.48-1 Function block
3.48.1.2 Signals
Table 3.48-1 Input signal
Signal
Description
U3P
The voltage magnitude in all the three phases
I3P
The current magnitude in all the three phases
CBOpn
CB Open BI
CBCls
CB Close BI
Table 3.48-2 Output signal
Signal
Description
Str
The start signal
3.48.2 Principle
There are three ways to determine the starting components of the motor: circuit breaker
position starting, voltage starting and current starting. The condition for determining the start of the
circuit breaker position is that the switch switches from open to closed; The condition for
determining voltage start is the process from dead voltage to live voltage; The criterion for
determining current start is that there is no current to having current. Three judgment methods can
be independently enabled.

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CYG PRS-7367 Specifications

General IconGeneral
BrandCYG
ModelPRS-7367
CategoryControl Unit
LanguageEnglish