AUMA SA 25.1 - Page 34

Table 18:
XM 3-pole: Monitoring HART signal “Actuator”
Explanation/functionSignal typeSignal namePin
Positive (analogue) input (target value) with HART
signal following overvoltage protection
Current with HARTAIN+_H1
Not used on internal sub-assemblyShield (drain)2
Negative (analogue) input (target value) with HART
signal following overvoltage protection
Current with HARTAIN-_H3
Connection assignment for “Current Output” device category
Table 19:
X2, screw-type terminal, 3-pole: analogue connection with HART signal (“Current output”)
FunctionSignal typeSignal namePin
Positive (analogue) output (target value) with HART
signal
Current with HARTAOUT+_H1
Wire or shield of infeed cableShield (EMC protec-
tion)
Shield (drain)2
Negative (analogue) output (target value) with HART
signal
Current with HARTAOUT-_H3
Table 20:
J: Jumper for shield
FunctionPositionItem
Shield via capacitor (2.2 nF/200 V) to PEJumper from CAP to SHIELD1
Shield directly to PE (default)Jumper from horizontal level
to SHIELD
2
Shield not to PE (not recommended)Jumper from OFF to SHIELD3
Table 21:
XM 3-pole: Monitoring“Current Output” HART signal
Explanation/functionSignal typeSignal namePin
Positive (analogue) input (target value) with HART
signal
Following overvoltage protection
Current with HARTAIN+_H1
Not used for “monitoring”Shield (drain)2
Negative (analogue) input (target value) with HART
signal
Following overvoltage protection
Current with HARTAIN-_H3
34
SA 25.1 – SA 48.1/SAR 25.1 – SAR 30.1
Electrical connection AC 01.2 Intrusive HART