The following settings are required depending on the desired function:
RLU222, RLU202 and
RLU220
Function Setting Value
Switching between
Comfort / Protection
Digital input D1, hard wired Permanently
configured
Switching between
Comfort / Economy
Digital input configured for
OPMODE
---, X1…X5
D1 OP MODE Operating mode Function
0 0 Comfort See "RLU232 and RLU236"
0 1 Economy See "RLU232 and RLU236"
1 0 Protection See "RLU232 and RLU236"
1 1 Protection See "RLU232 and RLU236"
Note If no other digital input is configured as OPMODE (preselected operating mode),
you can configure changeover between Comfort / Protection (default) or Comfort /
Economy with the hard wired D1 input via parameter settings as an additional
function.
Errors in operation:
Troubleshooting
The digital signals cannot be monitored. The controller interprets missing inputs as
if the physical input is not connected.
We recommend configuring the control inputs to be open in the normal position
(NORMPOS = OPEN).
Configuration errors:
Applying analog signals (e.g. DC 0 …10 V or LG-Ni1000) to the digital control
inputs produces an incorrect response that is not monitored.
You can use the digital inputs to switch a plant to OFF.
Application example
However, all safety-related functions remain active.
33 / 174
Siemens Universal Controllers RLU2… CE1P3101en
Building Technologies Operating modes 29.08.2008
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