Signals - ABB RELION 620 Series Technical Manual

Section 3
Basic functions
3.13.3
122
Resistor sensor
GUID-F939E7EE-B932-4002-9D27-1CEA7C595E0B V2 EN
Figure 41: Two RTD and resistance sensors connected according to the 2-wire
connection for RTD/mA card
Sensor
Transducer
GUID-FBB50B49-0EFE-4D1C-AB71-204C3E170C1D V2 EN
Figure 42: mA wiring connection for RTD/mA card

Signals

Table 57: 6RTD/2mA analog output signals
Name Type
ALARM BOOLEAN
WARNING BOOLEAN
AI_VAL1 FLOAT32
AI_VAL2 FLOAT32
AI_VAL3 FLOAT32
AI_VAL4 FLOAT32
Table continues on next page
X130
1
2
3
4
5
6
7
8
Description
General alarm
General warning
mA input, Connectors 1-2, instantaneous value
mA input, Connectors 3-4, instantaneous value
RTD input, Connectors 5-6-11c, instantaneous
value
RTD input, Connectors 7-8-11c, instantaneous
value
1MRS757644 F
+
mA
mA
-
+
RTD1
-
+
RTD2
-
X130
+
1
Shunt
(44 Ω)
-
2
...
...
...
8
620 series
Technical Manual