system
air
33
Wiring diagram
1,2
PE
green/yellow Protective earth
3
L1
Black
Power supply
4
L2
Black
Power supply
5
L3
Black
Power supply
6
NC
White 1
Status relay, floating status contact, break for failure, contact rating 250 VAC / 2 A (AC1) / min. 10 mA; reinforced
insulation on supply side and basic insulation on control interface side
7
COM
White 2
Status relay, floating status contact, break for failure, contact rating 250 VAC / 2 A (AC1) / min. 10 mA; reinforced
insulation on supply side and basic insulation on control interface side
8
0-10V
Yellow
Analog input (set value), 0-10 V, Ri = 100 kΩ, adjustable curve, SELV
10
RSB
Brown
RS485 interface for MODBUS, RSB; SELV
11
RSA
White
RS485 interface for MODBUS, RSA; SELV
12
GND
Blue
Reference ground for control interface, SELV
13
+10
Red
Fixed voltage output 10 VDC, +10 V ±3%, max. 10 mA, short-circuit-proof power supply for external devices (e.g. pot),
SELV
Check before commissioning
•
The mounting of the fan on the frame and the mounting of the electric motor on the tensioning bracket,
•
the parallelism of the motor drive shaft and of the fan shaft; in the case of deviation, adjust the electric motor by
means of the tensioning bracket, and once the adjustment has been completed, firmly tighten all the screws,
• the mounting of the rotor on the shaft and its free rotation in the casing,
• the mounting of the vibration isolators,
• the correct installation of the grounding,
• the correct installation of the electrical connections and their operation (fuse sizes, contactors, thermal protection),
• for the presence of any tools or other foreign materials in the section,
• the mounting of all the covers and doors.
•
Thermal protection is essential for the safety of the electric motor, therefore, before starting the motor, check if
it has the correct settings for the nominal current of the motor, and check its operation. Once this test has been
successfully completed, seal the thermal protection device.