Control Behaviour (P01); Pid Slow; Pid Fast; 2-Position, 1 K - Siemens RDJ100 Programming Instructions Manual

Control behaviour (P01)

The factory setting for control is "PID slow", ideal for most heating systems. Optimum control
can be selected if control does not provide the desired result:

2-position, 1 K

2-position controller with 1 [K] switching hysteresis
For systems with small capacity that appear slow
For applications requiring extended runtimes or where frequent switching causes
problems
For difficult control loops where hunting may result
Typical applications:
Dry floor heating systems
Heat pumps
Electric heating with contactors
2-position, 0.5 K
2-position controller with 0.5 [K] switching hysteresis.
For general control situations. Provides better comfort than 1 [K] switching hysteresis.
Can also be used for difficult control situations.

PID slow

PID control behaviour for slow heating systems that require longer minimum On times and a
limited number of switching cycles per hour.
Typical applications:
Wet floor heating systems, oil fired boilers
Can also be used for all other types of heating applications. (Alternative setting)
Minimum switch on/off time
Minimum period

PID fast

PID control behaviour for fast heating systems that tolerate a high number of switching
cycles.
Typical applications:
Electric heaters with current valve
Gas boilers
Fast thermal actuators
Minimum switch on/off time
Minimum period
Do not use PID fast for oil boilers or electric mechanical actuators!
Backup
When removing the batteries, the setpoints and information required for operating mode
changeover are retained for max. 2 minutes.
Siemens
Building Technologies
WARNING
> 4 minutes
Approximately 12 minutes
> 1 minute
Approximately 6 minutes
Datasheet
3
A6V10954415_en--_e
2018-11-20