10
12
11
13
15
14
X130
SO1
SO2
16
18
17
SO3
GUID-C5B5FD1C-617B-4F38-A0D4-D98735E69530 V1 EN
Figure 23: Signal output in BIO0006
3.11 RTD/mA inputs
3.11.1 Functionality
RTD and mA analog input module is used for monitoring and metering milli-
ampere (mA), temperature (°C) and resistance (Ω). Each input can be linearly
scaled for various applications, for example, transformer’s tap changer position
indication. Each input has independent limit value supervision and deadband
supervision functions, including warning and alarm signals.
3.11.2 Operation principle
All the inputs of the module are independent RTD and mA channels with
individual protection, reference and optical isolation for each input, making them
galvanically isolated from each other and from the rest of the module. However,
the RTD inputs share a common ground.
3.11.2.1 Selection of input signal type
The function module inputs accept current or resistance type signals. The inputs are
configured for a particular type of input type by the channel specific Input mode
setting. The default value for all inputs is “Not in use”, which means that the
channel is not sampled at all, and the output value quality is set accordingly.
Section 3 1YHT530004D05 D
Basic functions
86 615 series
Technical Manual
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