23
EN
3.2. AT START UP
• Before you handle this equipment, ensure it is disconnected from the mains power supply.
• Check that the mains voltage and frequency are the same as specifi ed on the name plate.
• Follow the wiring diagram to make the electrical connections.
• Check that the earthing, if any, is correct and that the thermal and surge protection has been
connected and are within the relevant limits.
4. COMMISSIONING OF PLUG & PLAY MODES FROM THE FACTORY
VFTM320 drives come pre-programmed by S&P. For this, it is necessary to make a bridge between
DI3 - R2C and another between DI4-R2A and, in this way, two
plug & play
operating modes are
obtained following corresponding wiring diagrams:
1. Manual control mode
through integrated frontal Wheel (check 4.1 paragraph)
2. Constant pressure (COP) mode
(PI control) with 0-10V analog signal input (check 4.2 paragraph)
ATTENTION: Check SW1 micro switch is positioned to the right and SW2 to the left
Navigation through the menus of the frequency drive will be carried out using the commands de-
scribed below:
= ENTER
= BACK
4.1. MANUAL CONTROL WITH INTEGRATED FRONTAL WHEEL
With this confi guration, the user will be able to modify the speed of the fan as well as the stop / start
of the equipment through the front potentiometer.
