Time Diagrams - Siemens 3RS2 Manual

Analog devices

4.9 Time diagrams

⑩
Undershoot
⑪
Sensor type (resistance sensors Pt100, 3-wire thermocouples type K)
⑫
Basic hysteresis (10%)
⑬
Extended hysteresis (+10%)
Status display on analog devices:
Status
No supply voltage
Supply voltage + no overshoot/undershoot
Supply voltage + overshoot/undershoot
Supply voltage + short-circuit
Supply voltage + wire break
Selected temperature measuring range is at the limit of two setting ranges
Range overshoot or range undershoot
1) with a frequency of 8.0 Hz.
2) with a frequency of 0.5 Hz.
3) Status display depends on the sensor status
Note
In the event of an error (e.g. wire break or short-circuit in a sensor cable), the device enters sleep
mode (change-over contact 11/14 open, 11/12 closed)
4.9 Time diagrams
Monitoring of the upper limit value:
14NO/ 11C (ϑ LED)
22
A1(+ ) /A2(-)
ϑ1
hyst.
12NC/11NC
Green LED "Ready" Red LED "Theta"
OFF
ON
ON
ON
ON
flickers
1)
ON
3RS2 temperature monitoring relay
Equipment Manual, 02/2022, A5E42462552002A/RS-AB/002
OFF
OFF
ON
flickers 1)
flashes
2)
3)
Flashes