Technical data

3.7 Control outputs
3.7.1 Overview
Different control output signals are available. They need to be defined during
commissioning (see below).
Control output
Product no.
On/Off PWM 3-position DC 0…10 V
RDG100KN Y1, Y2, Y3
(3 x NO)
Y1, Y3,
(2 x PWM)
Y1/Y2, Y3/Y4
(2 x / )
---
RDG160KN
Q1, Q2,
(2 x NO)
---
---
Y10, Y20
The valve receives the OPEN/ON command via control output Y1 (Q1 on
RDG160KN) or Y3 (Q2 on RDG160KN) when…
1. the acquired room temperature is below the setpoint (heating mode) or above
the setpoint (cooling mode).
2. the control outputs have been inactive for more than the "Minimum output
OFF-time" (factory setting 1 minute, adjustable via parameter P48).
OFF command when…
1. the acquired room temperature is above the setpoint (heating mode) or below
the setpoint (cooling mode).
2. the valve has been active for more than the "Minimum output on-time" (factory
setting 1 minute, adjustable via parameter P49).
The electric heater receives an ON command via the auxiliary heating control
output (Y…, see Mounting Instructions) when…
1. the acquired room temperature is below the "Setpoint for electric heater"
2. the electric heater has been switched off for at least 1 minute
The OFF command for the electric heater is output when…
1. the acquired room temperature is above the setpoint (electric heater)
2. the electric heater has been switched on for at least 1 minute
A safety limit thermostat (to prevent overtemperatures) must be provided externally.
On RDG160KN the electrical heater can be controlled via the 2-position output
(Q2) by setting P47 = 1. Adaptive temperature compensation: see 3.6.4.
Heating: Output Y1 provides the OPEN command, and Y2 the CLOSE command
to the 3-position actuator. Cooling: Same with Y3 and Y4.
The factory setting for the actuator's running time is 150 seconds. It can be
adjusted via parameters P44 (Y1 and Y2) or P45 (Y3 and Y4).
The parameters are only visible if 3-position is selected via DIP switches 4 and 5.
Overview of control
outputs
On/Off
control signal
(2-position)
Electric heater control
signal (On/Off)
Caution
Note!
3-position
control signal
(RDG100KN only)
49 / 102
Siemens RDG100KN, RDG160KN Basic documentation CE1P3191en
Building Technologies Functions 2014-05-23