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A20H0019
Raddrizzatore Q - Rectifier Q
Auxiliary devices identification
The below table shows the symbols used inside the terminal board box in order to identify all of the
auxiliary devices (please refer to the picture). The supply tension of the heaters or of the forced
ventilation (if present) is indicated on the nameplate. For any doubt, please do not hesitate to contact
us
Note: depending on the motor type and on the requested auxiliary devices, the terminal
board used and the position of the auxiliary devices terminal connections might change
from what shown in the example picture.
The heater must be powered only after having turned off the motor. Do not power the heater
while the motor is running.
The presence of the forced ventilation ensures that dissipation heat is removed while the
principal motor is working. Once the motor is turned off, please verify the necessity of using
the forced ventilation for an additional period of time. In three-phase forced ventilation units,
please check the sense of rotation of the fan. The effective functioning of the three-phase fan
depends on the sense of rotation. (please refer to the sense of rotation arrow on the fan).
Device
Cable identification
Motor heaters
HT
Thermal protectors (PTO)
TP
Thermistors (PTC)
TM
Forced ventilation
SV
Brake coil heaters
HB
