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Saia-Burgess Controls AG
3.1.7 Technical data for PCD7.L662 / PCD7.L663 (version SV2.8K)
Mobile room control unit with wireless interface, temperature sensor, function keys
and display for HeaVAC functions, and light and shade functions. For operation with
the room controller, the PCD7.L663 wireless receiver is required.
Pin allocation
Interface
Serial bus
Functions
Function
Sensor
Set-point setting
Manual for PCD7.L6xx room operator units │ D ocument 26-859 ENG07 │ 2 015-06-04
Terminal
Description
RC
The PCD7.L663 wireless receiver is connected directly to
the room controller with the PCD7.L670 cable, or where
extension modules are used for light and shade, to the
last module. The PCD7.L670-xx connecting cable is pre-
configured at both ends and is either 10, 30 or 50 m long.
The maximum length between the room controller and the
room control unit must not exceed 50 m.
Description
The room temperature sensor (range 0...40 °C) is inte-
grated into the control unit.
The base set-point held in the room controller can be
increased or decreased in up to 5 steps using the room
control unit, with the last step twice as large as the rest.
The step size is stored in the room controller configu-
ration. See description of the associated configuration
parameters.
The function key is used to activate the set-point set-
ting. The display shows the temperature symbol together
with the number of steps. The
used to adjust the set-point in steps. After approx. 20 sec-
onds, the display returns to the default view.
Digital room controller units
Radio
Receiver
RJ 9
PCD7.L670
and
3
keys can be
3-18
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