VEGA VEGAPULS 66 (≥ 2.0.0 - ≤ 3.8) enamel 4 … 20 mA_HART four-wire - Manual (Page 25)

Information:
K
eep in mind that the indicating and adjustment module must only be
used in the electronics compartment.
4 ... 20 mA
PE
/ L
/ N
L1 N GND
1 2
1 2 3 4
4...20mA IS
Fig. 18: Wiring plan, double chamber housing
1 Power supply
2 Signal output
5.4 Switch on phase
A fter connecting VEGAPULS 66 to power supply or after a voltage
recurrence, the instrument carries out a self-check for approx. 30
seconds:
l I nternal check of the electronics
l I ndication of the instrument type, the firmware as well as the
sensor TAGs (sensor designation)
l O utput signal jumps briefly (approx. 10 seconds) to the set fault
current
T hen the corresponding current is outputted to the cable (the value
corresponds to the actual level as well as the settings already carried
out, e.g. factory setting).
Wiring plan
Switch on phase
VEGAPULS 66 enamel • 4 … 20 mA/HART four-wire 25
5 C onnecting to power supply
31954
-EN
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