56 ______________________________________________________________ NT 1963 E – 07/2020
6.3.
ECM VERSION WITHOUT CONTROL SYSTEM
The fan rotation speed is set as standard by a 0-10V analogue signal.
This setting is made using a potentiometer supplied, with the
MODULYS ECM unit (see opposite), making it possible to set the fan's
operating range from 0 to 100%.
The speed control potentiometer is delivered as standard fitted in its
box. The wire connections are shown on the potentiometer board (see
enlarged views opposite), or on the connection terminal block.
When connecting an external potentiometer or control, the factory-
fitted potentiometer must be disconnected
6.4.
CONTROLLED VERSION:
6.4.1.
CONTROL PANEL
The 4-button keypad and the display are used to configure the MODULYS ECM:
For device configuration, please refer to the OXEO® Fan control system manual.
6.4.2.
OPERATING MODES
PCO mode (constant pressure):
In this operating mode, the motor rotation speed is slaved to a pressure measurement. The operating
point is defined manually by the user in the main menu. This mode is used if you want constant
pressure PID control to be applied.
DCO mode (constant flow rate):
In this operating mode, the motor rotation speed is slaved to a flow rate measurement. The operating
point is defined manually by the user in the main menu. This mode is used if you want constant flow
rate PID control to be applied.
DCV mode (demand controlled ventilation):
In this operating mode, the motor rotation speed is slaved to the 0-10 V signal present on input AI1.
The operating point is defined manually by the user in the main menu. This mode is used when you
want PID control with a 0-10 V sensor signal to be applied (temperature, humidity, CO
2
, VOCs, etc.).
Short press
: browse through the sub-menus
OR change a setting value
Short press
: access a sub-menu or confirm a
setting
Long press
: power on the device OR
access the installer menu
Short press
: go back to the previous menu or
exit a setting
Long press
: power off the device
