BPS CR26 User Manual

42
ENGLISHAPPENDIX A ITALIANO
level, so it is always possible to change the on/off status with the “ “
button (if enabled).
“Motor alarm“ function
The input lights the “ “ icon on the display. When the alarm is active,
the electric heater output will be cut off.
“Electric heater alarm“ function
When the alarm is activated “ “ + “ “ symbols ash on the display and
the electric heater output will be cut off.
The electric heater safety thermostat can be connected to this input.
“Dirty lter“ warning function
the input activate the dirty lter warning, the “ “ lter icon blinks on
the display.
“Motor rpm control” function
The function is used to monitor the fan rotation by measuring the
motor’s rpm. The function can be congured only on input 16. The motor
rpm sensor must be connected to terminal 16. When the fan is on, the
thermostat ensures the motor runs and does not get stuck. It ensures the
signal frequency is between 1 and 255 commutations per second. In the
event of an error, the “ “ icon appears on the display and the electric
heater output will be disabled, if there is one.
OUTPUT 8
The thermostat can control output 8 to perform a special function. The
special function is congured on parameter C23 and table 6 shows the
functions that can be congured.
Output 8 is not available when the three relays for three speeds motor are
used and when the integration electric heater system is chosen.
Functions that can be congured are:
Fan logic
The output is active when the proportional fan is on, regardless of the
speed.
Valve logic
The output is active when the valve is opened. In case of 4 pipes system,
the output is active when one of the two valves is opened.
ON/OFF logic
The output is active when the thermostat is turned on.
Economy logic
The output is active when the thermostat is in economy mode or is turned off.
Heating/cooling logic
The output is active when the thermostat is in heating mode.
Input status repetition
The output repeats the status of an input 3, 4 or 16. The output is active
when the input is closed.
CONTROL OF 0..10V PROPORTIONAL OUTPUTS
It is possible to connect several actuators to the same 0..10V output,
however it is necessary to make sure the output is not overloaded. Ensure
that the impedance of the group of actuators does not drop below the
minimum impedance the thermostat can control (see “Technical features”
section).
The thermostat constantly controls the 0..10V outputs and if it detects an
overload, it reports the anomaly on the display by turning on the “
” icons
in the event of an issue on the heating or cooling 0..10V valve output and
the “ “ icon in the event of an issue on the 0..10V fan output. If there
is a problem affecting the fan output, the electric heater output is disabled
in the electric heater and integrating electric heater systems.

BPS CR26 Specifications

General

Brand	BPS
Model	CR26
Category	Controller
Language	English