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Saia-Burgess Controls AG
3.1.1 Technical data for PCD7.L640
Room control unit with temperature sensor and set point setting.
Pin allocation
Interface
Serial bus
Functions
Function
Sensor
Set point setting
Note
All analogue inputs on the room controller can be read by the S-Bus via a Room
FBox or via registers independently of the application.
The use of a digital room control unit must be indicated in the configuration.
See description of Config FBox or registers.
Manual for PCD7.L6xx room operator units │ D ocument 26-859 ENG07 │ 2 015-06-04
Terminal
Description
RC
The connection to the room controller is made with the
PCD7.L670-xx directly to the controller, or where exten-
sion modules are used for light and shade, to the last
module. The PCD7.L670-xx connecting cable is precon-
figured 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
Room temperature sensor. Measurement range 0...40 °C.
To set a configurable set point displacement. The setting
is entered via a potentiometer. The range is converted into
+/- 6 steps and passed to the room controller. The base
set point held in the room controller can be increased or
decreased in steps. The step size is stored in the room
controller configuration. See description of Config FBox or
registers (reg. 104). When the Plus, Set and Minus keys
are pressed together, the current set point is displayed for
approx. 20 seconds.
Digital room controller units
PCD7.L640
Controller
RJ 9
PCD7.L670-xx
3
3-4
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