ABB REG670 - Signal Matrix for Ma Inputs SMMI

20.14 Signal matrix for mA inputs SMMI
20.14.1 Functionality
The Signal matrix for mA inputs (SMMI) function is used within the Application
Configuration Tool (ACT) in direct relation with the Signal Matrix Tool (SMT). See
the Application Manual for information about how milliamp (mA) inputs from
external transducers are physically connected to the MIM board inputs used in an IED.
Via the SMMI, the signals are brought into the IED configuration, for example, to the
input for ambient temperature compensation of the thermal overload function when
there is a need for ambient temperature compensation in the thermal function.
20.14.2 Function block
SMMI
^AI1
^AI2
^AI3
^AI4
^AI5
^AI6
^AI1
^AI2
^AI3
^AI4
^AI5
^AI6
IEC05000440.vsd
IEC05000440 V3 EN
Figure 511: SMMI function block
20.14.3 Signals
Table 857: SMMI Input signals
Name
Type Default Description
AI1 REAL 0 SMT connected milliampere input
AI2 REAL 0 SMT connected milliampere input
AI3 REAL 0 SMT connected milliampere input
AI4 REAL 0 SMT connected milliampere input
AI5 REAL 0 SMT connected milliampere input
AI6 REAL 0 SMT connected milliampere input
Table 858: SMMI Output signals
Name
Type Description
AI1 REAL Analog milliampere input 1
AI2 REAL Analog milliampere input 2
AI3 REAL Analog milliampere input 3
AI4 REAL Analog milliampere input 4
AI5 REAL Analog milliampere input 5
AI6 REAL Analog milliampere input 6
1MRK502052-UEN B Section 20
Basic IED functions
1127
Technical manual