1 Description[edit | edit source]
Siemens 3RS2600-1BW30 is a digital hardware relay used for temperature monitoring.
It can be used for different applications and different sensor types.
In normal running condition the device displays the actual measured temperature:
Two separate temperature thresholds can be set. Those will switch the two separate relay contacts K1 and K2.
2 Time Diagram[edit | edit source]
Using Standard Mode and Monitoring "OVER" (=overtemp):
3 Hardware connection[edit | edit source]
Using only K1 with Theta1, connect the relay contact on 11C and 14NO. When using also K2 with Theta2, connect additionally 21C and 24NO.
A hardware reset is not needed - or not wanted in our applications.
4 Parameter Setting[edit | edit source]
To enter the device’s parameterization mode:
Press button "Enter" for at least 2 seconds.
Then use the "up" and "down" buttons to navigate through the menu, use "Enter" to select menu items, "up", "down" to modify values, "enter" to accept" or "back" to go back in the menu.
Finish setup mode by again keeping "Enter" pressed for longer than 2 seconds.
Standard application is that K1 is switching off the power contactor of the heater directly, and K2 is used as overtemo signal to the PLC.
Therefore set ϑ1 and ϑ2 to the same value to switch K1 and K2 at the same time.
ϑ1: Setpoint according your application (this is for contact 11C/4NO)
ϑ1: If K2 is used (this is for contact 21C/24NO)
DEV.MODE: Std
DELAY: Off
ON DELAY: Off
Hysteresis: 5°C
Princip: Clos.
Input: T1
Sensor: PT100 > 3-wire
Mon.Mode: Over
Memory: On
Auto RST: Off
Unit: °C
Keep pressing "enter" until ask to "SAVE?" Confirm with pressing "enter" again.
5 Fault reset[edit | edit source]
In our application we do not want to use auto reset.
In case of loss of power supply, the memory mode will restore the status of the contacts like they were before the power loss. So a reset is not needed when powering on the devices, if the temperatures is still within range.
When having a real overtemperature event, or wirebreakm a reset is done with the Button "back" followed by button "enter" to confirm.
