Status Display - Siemens 3RS2 Manual

A1(+)
33NO 34NO
Figure 7-1
7.5.2

Status display

Status
Device ready + communication set up
Device ready + communication error
Device not ready / internal fault / no power supply
3RS2 temperature monitoring relay
Equipment Manual, 02/2022, A5E42462552002A/RS-AB/002
A2(-) AI-
AI+
LEDs of the sensor expansion modules
Green LED "Device"
ON
ON
OFF
Sensor expansion module
7.5 Operator control
Red LED "COM"
OFF
Flickering
OFF
65