Saia-Burgess Controls AG
Manual for PCD7.L6xx room operator units
│
Document 26
-859
E
NG07 │ 2015-06-04
3
Digital room controller units
3-5
3.1.2 Technical data for PCD7.L641
RJ 9
Controller
PCD7.L670-xx
PCD7.L641
yellow
green
red
black
LED
comfort mode
Setpoint
potentiometer
temp.-sensor
Occupancy button
Room control unit with temperature sensor, set point setting and illuminated presence
sensor.
Pin allocation
Interface
Terminal
Description
Serial bus
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.
Functions
Function
Description
Sensor
Room temperature sensor. Measurement range 0…40 °C.
Set point setting
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.
Presence Sensor
The presence sensor can be used to change the operating
mode manually to Comfort or Standby/unused. In Comfort
mode, the semi-transparent sensor lights up.
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.