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Siemens
RDG100.., RDG110.., RDG160T.. Basic Documentation
CE1P3181en
Building Technologies
Functions
2015-07-29
4.8 Control
outputs
Different control output signals are available depending on the thermostat type, the
position of DIP switches 4 and 5, and parameters P46 and P47 (see section 4.7.2).
Control output
Product no.
On/Off
PWM
3-position
DC 0…10 V
RDG100
RDG100T
RDG100T/H
Y1, Y2, Y3
(3 x N.O.)
Y1, Y3,
(2 x PWM)
Y1/Y2, Y3/Y4
(2 x
/ )
RDG110
RDG110U
Y11/Y12,
Y21/Y22 (2 x
SPDT)
RDG160T
RDG160TU
Q1, Q2
(2 x N.O.)
Y10, Y20
(2 x DC 0…10 V)
The valve or compressor receives the
ON
command via control output Y1 or Y3
(RDG110..: Y11/Y21, RDG160T..: Q1/Q2) 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 "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 thermostat (to prevent overtemperatures) must be provided externally.
On RDG160T.. the electric heater can be controlled via the 2-position output (Q2) by
setting P47 = 1.
Overview of control
outputs
On/Off control signal
(2-position)
Electric heater control
signal
(
On/Off
)
Caution
Note!